1
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openmpi/orte/util/nidmap.c

1275 строки
45 KiB
C
Исходник Обычный вид История

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2011 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
* Copyright (c) 2012-2013 Los Alamos National Security, LLC.
* All rights reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "orte_config.h"
#include "orte/types.h"
#include "orte/constants.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <fcntl.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_IFADDRS_H
#include <ifaddrs.h>
#endif
#include "opal/dss/dss.h"
#include "opal/runtime/opal.h"
#include "opal/class/opal_pointer_array.h"
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
#include "opal/mca/db/db.h"
At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here: https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation. In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions: 1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior. 2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation. 3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so. As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes. This commit was SVN r25476.
2011-11-15 07:40:11 +04:00
#include "opal/mca/hwloc/base/base.h"
#include "opal/util/net.h"
#include "opal/util/output.h"
#include "opal/util/argv.h"
#include "opal/datatype/opal_datatype.h"
#include "orte/mca/dfs/dfs.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/odls/base/odls_private.h"
#include "orte/util/show_help.h"
#include "orte/util/proc_info.h"
#include "orte/util/name_fns.h"
#include "orte/util/regex.h"
#include "orte/runtime/orte_globals.h"
#include "orte/mca/rml/base/rml_contact.h"
#include "orte/mca/state/state.h"
#include "orte/util/nidmap.h"
static int orte_nidmap_verbose, orte_nidmap_output=-1;
int orte_util_nidmap_init(opal_buffer_t *buffer)
{
int32_t cnt;
int rc;
opal_byte_object_t *bo;
MCA/base: Add new MCA variable system Features: - Support for an override parameter file (openmpi-mca-param-override.conf). Variable values in this file can not be overridden by any file or environment value. - Support for boolean, unsigned, and unsigned long long variables. - Support for true/false values. - Support for enumerations on integer variables. - Support for MPIT scope, verbosity, and binding. - Support for command line source. - Support for setting variable source via the environment using OMPI_MCA_SOURCE_<var name>=source (either command or file:filename) - Cleaner API. - Support for variable groups (equivalent to MPIT categories). Notes: - Variables must be created with a backing store (char **, int *, or bool *) that must live at least as long as the variable. - Creating a variable with the MCA_BASE_VAR_FLAG_SETTABLE enables the use of mca_base_var_set_value() to change the value. - String values are duplicated when the variable is registered. It is up to the caller to free the original value if necessary. The new value will be freed by the mca_base_var system and must not be freed by the user. - Variables with constant scope may not be settable. - Variable groups (and all associated variables) are deregistered when the component is closed or the component repository item is freed. This prevents a segmentation fault from accessing a variable after its component is unloaded. - After some discussion we decided we should remove the automatic registration of component priority variables. Few component actually made use of this feature. - The enumerator interface was updated to be general enough to handle future uses of the interface. - The code to generate ompi_info output has been moved into the MCA variable system. See mca_base_var_dump(). opal: update core and components to mca_base_var system orte: update core and components to mca_base_var system ompi: update core and components to mca_base_var system This commit also modifies the rmaps framework. The following variables were moved from ppr and lama: rmaps_base_pernode, rmaps_base_n_pernode, rmaps_base_n_persocket. Both lama and ppr create synonyms for these variables. This commit was SVN r28236.
2013-03-28 01:09:41 +04:00
orte_nidmap_verbose = 0;
(void) mca_base_var_register ("orte", "orte", NULL, "nidmap_verbose",
"Verbosity of the nidmap subsystem",
MCA_BASE_VAR_TYPE_INT, NULL, 0,
MCA_BASE_VAR_FLAG_INTERNAL,
OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_ALL_EQ,
&orte_nidmap_verbose);
if (0 < orte_nidmap_verbose) {
orte_nidmap_output = opal_output_open(NULL);
opal_output_set_verbosity(orte_nidmap_output, orte_nidmap_verbose);
}
/* it is okay if the buffer is empty */
if (NULL == buffer || 0 == buffer->bytes_used) {
return ORTE_SUCCESS;
}
At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here: https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation. In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions: 1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior. 2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation. 3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so. As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes. This commit was SVN r25476.
2011-11-15 07:40:11 +04:00
#if OPAL_HAVE_HWLOC
{
hwloc_topology_t topo;
/* extract the topology */
cnt=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &topo, &cnt, OPAL_HWLOC_TOPO))) {
ORTE_ERROR_LOG(rc);
return rc;
}
if (NULL == opal_hwloc_topology) {
opal_hwloc_topology = topo;
} else {
hwloc_topology_destroy(topo);
}
}
#endif
/* extract the byte object holding the daemonmap */
cnt=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &bo, &cnt, OPAL_BYTE_OBJECT))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* unpack the node map */
if (ORTE_SUCCESS != (rc = orte_util_decode_nodemap(bo))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* the bytes in the object were free'd by the decode */
/* extract the byte object holding the process map */
cnt=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &bo, &cnt, OPAL_BYTE_OBJECT))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* unpack the process map */
if (ORTE_SUCCESS != (rc = orte_util_decode_pidmap(bo))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* the bytes in the object were free'd by the decode */
return ORTE_SUCCESS;
}
void orte_util_nidmap_finalize(void)
{
#if OPAL_HAVE_HWLOC
/* destroy the topology */
if (NULL != opal_hwloc_topology) {
hwloc_topology_destroy(opal_hwloc_topology);
opal_hwloc_topology = NULL;
}
#endif
}
#if ORTE_ENABLE_STATIC_PORTS
int orte_util_build_daemon_nidmap(char **nodes)
{
int i, num_nodes;
int rc;
struct hostent *h;
opal_buffer_t buf;
orte_process_name_t proc;
char *uri, *addr;
char *proc_name;
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
opal_identifier_t *id;
num_nodes = opal_argv_count(nodes);
OPAL_OUTPUT_VERBOSE((2, orte_nidmap_output,
"%s orte:util:build:daemon:nidmap found %d nodes",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), num_nodes));
if (0 == num_nodes) {
/* nothing to do */
return ORTE_SUCCESS;
}
/* install the entry for the HNP */
proc.jobid = ORTE_PROC_MY_NAME->jobid;
proc.vpid = 0;
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
id = (opal_identifier_t*)&proc;
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_DAEMON_VPID, &proc.vpid, OPAL_UINT32))) {
ORTE_ERROR_LOG(rc);
return rc;
}
addr = "HNP";
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_HOSTNAME, addr, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* the daemon vpids will be assigned in order,
* starting with vpid=1 for the first node in
* the list
*/
OBJ_CONSTRUCT(&buf, opal_buffer_t);
for (i=0; i < num_nodes; i++) {
/* define the vpid for this daemon */
proc.vpid = i+1;
/* store the hostname for the proc */
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_HOSTNAME, nodes[i], OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* the arch defaults to our arch so that non-hetero
* case will yield correct behavior
*/
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_ARCH, &opal_local_arch, OPAL_UINT32))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* lookup the address of this node */
if (NULL == (h = gethostbyname(nodes[i]))) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
return ORTE_ERR_NOT_FOUND;
}
addr = inet_ntoa(*(struct in_addr*)h->h_addr_list[0]);
/* since we are using static ports, all my fellow daemons will be on my
* port. Setup the contact info for each daemon in my hash tables. Note
* that this will -not- open a port to those daemons, but will only
* define the info necessary for opening such a port if/when I communicate
* to them
*/
/* construct the URI */
orte_util_convert_process_name_to_string(&proc_name, &proc);
asprintf(&uri, "%s;tcp://%s:%d", proc_name, addr, (int)orte_process_info.my_port);
OPAL_OUTPUT_VERBOSE((2, orte_nidmap_output,
"%s orte:util:build:daemon:nidmap node %s daemon %d addr %s uri %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
nodes[i], i+1, addr, uri));
opal_dss.pack(&buf, &uri, 1, OPAL_STRING);
free(proc_name);
free(uri);
}
/* load the hash tables */
if (ORTE_SUCCESS != (rc = orte_rml_base_update_contact_info(&buf))) {
ORTE_ERROR_LOG(rc);
}
OBJ_DESTRUCT(&buf);
return rc;
}
#endif
int orte_util_encode_nodemap(opal_byte_object_t *boptr, bool update)
{
orte_node_t *node;
int32_t i;
int rc;
opal_buffer_t buf;
char *ptr, *nodename;
orte_job_t *daemons;
orte_proc_t *dmn;
/* if the daemon job has not been updated, then there is
* nothing to send
*/
daemons = orte_get_job_data_object(ORTE_PROC_MY_NAME->jobid);
if (update && !daemons->updated) {
boptr->bytes = NULL;
boptr->size = 0;
return ORTE_SUCCESS;
}
/* setup a buffer for tmp use */
OBJ_CONSTRUCT(&buf, opal_buffer_t);
/* only send info on nodes that have daemons on them, and
* only regarding daemons that have changed - i.e., new
* daemons since the last time we sent the info - so we
* minimize the size of the nidmap message. The daemon
* will maintain a global picture of the overall nidmap
* as it receives updates, and pass that down to the procs
*/
for (i=0; i < daemons->procs->size; i++) {
if (NULL == (dmn = (orte_proc_t*)opal_pointer_array_get_item(daemons->procs, i))) {
continue;
}
/* if we want an update nidmap and this daemon hasn't
* been updated, then skip it
*/
if (update && !dmn->updated) {
continue;
}
/* if the daemon doesn't have a node, that's an error */
if (NULL == (node = dmn->node)) {
opal_output(0, "DAEMON %s HAS NO NODE", ORTE_NAME_PRINT(&dmn->name));
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
return ORTE_ERR_NOT_FOUND;
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &dmn->name.vpid, 1, ORTE_VPID))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* pack the name of the node */
if (!orte_keep_fqdn_hostnames) {
nodename = strdup(node->name);
/* if the nodename is an IP address, do not mess with it! */
if (!opal_net_isaddr(nodename)) {
/* not an IP address */
if (NULL != (ptr = strchr(nodename, '.'))) {
*ptr = '\0';
}
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &nodename, 1, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
return rc;
}
free(nodename);
} else {
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &node->name, 1, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
return rc;
}
}
/* if requested, pack any aliases */
if (orte_retain_aliases) {
uint8_t naliases, ni;
naliases = opal_argv_count(node->alias);
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &naliases, 1, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
return rc;
}
for (ni=0; ni < naliases; ni++) {
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &node->alias[ni], 1, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
return rc;
}
}
}
/* pack the oversubscribed flag */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &node->oversubscribed, 1, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
return rc;
}
}
/* transfer the payload to the byte object */
opal_dss.unload(&buf, (void**)&boptr->bytes, &boptr->size);
OBJ_DESTRUCT(&buf);
return ORTE_SUCCESS;
}
/* decode a nodemap for an application process */
int orte_util_decode_nodemap(opal_byte_object_t *bo)
{
int n;
int32_t num_daemons;
orte_process_name_t daemon;
opal_buffer_t buf;
int rc=ORTE_SUCCESS;
uint8_t oversub;
char *nodename;
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
opal_identifier_t *id;
OPAL_OUTPUT_VERBOSE((1, orte_nidmap_output,
"%s decode:nidmap decoding nodemap",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
/* should never happen, but... */
if (NULL == bo->bytes || 0 == bo->size) {
return ORTE_SUCCESS;
}
/* xfer the byte object to a buffer for unpacking */
OBJ_CONSTRUCT(&buf, opal_buffer_t);
opal_dss.load(&buf, bo->bytes, bo->size);
/* set the daemon jobid */
daemon.jobid = ORTE_DAEMON_JOBID(ORTE_PROC_MY_NAME->jobid);
num_daemons = 0;
n=1;
while (OPAL_SUCCESS == (rc = opal_dss.unpack(&buf, &daemon.vpid, &n, ORTE_VPID))) {
++num_daemons;
/* unpack and store the node's name */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &nodename, &n, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
return rc;
}
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
id = (opal_identifier_t*)&daemon;
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_HOSTNAME, nodename, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* now store a direct reference so we can quickly lookup the daemon from a hostname */
opal_output_verbose(2, orte_nidmap_output,
"%s storing nodename %s for daemon %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
nodename, ORTE_VPID_PRINT(daemon.vpid));
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
id = (opal_identifier_t*)ORTE_NAME_WILDCARD;
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, nodename, &daemon.vpid, OPAL_UINT32))) {
ORTE_ERROR_LOG(rc);
return rc;
}
OPAL_OUTPUT_VERBOSE((2, orte_nidmap_output,
"%s orte:util:decode:nidmap daemon %s node %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_VPID_PRINT(daemon.vpid), nodename));
/* if this is my daemon, then store the data for me too */
if (daemon.vpid == ORTE_PROC_MY_DAEMON->vpid) {
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
id = (opal_identifier_t*)ORTE_PROC_MY_NAME;
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_HOSTNAME, nodename, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
return rc;
}
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_DAEMON_VPID, &daemon.vpid, OPAL_UINT32))) {
ORTE_ERROR_LOG(rc);
return rc;
}
}
/* if requested, unpack any aliases */
if (orte_retain_aliases) {
char *alias;
uint8_t naliases, ni;
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &naliases, &n, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
return rc;
}
for (ni=0; ni < naliases; ni++) {
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &alias, &n, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* store a cross-reference to the daemon for this nodename */
opal_output_verbose(2, orte_nidmap_output,
"%s storing alias %s for daemon %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
alias, ORTE_VPID_PRINT(daemon.vpid));
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
id = (opal_identifier_t*)ORTE_NAME_WILDCARD;
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, alias, &daemon.vpid, OPAL_UINT32))) {
ORTE_ERROR_LOG(rc);
return rc;
}
free(alias);
}
}
/* unpack and discard the oversubscribed flag - procs don't need it */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &oversub, &n, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
return rc;
}
}
if (ORTE_ERR_UNPACK_READ_PAST_END_OF_BUFFER != rc) {
ORTE_ERROR_LOG(rc);
} else {
rc = ORTE_SUCCESS;
}
/* update num_daemons */
orte_process_info.num_daemons = num_daemons;
OBJ_DESTRUCT(&buf);
return rc;
}
/* decode a nodemap for a daemon */
int orte_util_decode_daemon_nodemap(opal_byte_object_t *bo)
{
int n;
orte_vpid_t vpid;
orte_node_t *node;
opal_buffer_t buf;
int rc=ORTE_SUCCESS;
uint8_t *oversub;
char *name;
orte_job_t *daemons;
orte_proc_t *dptr;
OPAL_OUTPUT_VERBOSE((1, orte_nidmap_output,
"%s decode:nidmap decoding daemon nodemap",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
if (NULL == bo->bytes || 0 == bo->size) {
/* nothing to unpack */
return ORTE_SUCCESS;
}
/* xfer the byte object to a buffer for unpacking */
OBJ_CONSTRUCT(&buf, opal_buffer_t);
opal_dss.load(&buf, bo->bytes, bo->size);
/* transfer the data to the nodes, counting the number of
* daemons in the system
*/
daemons = orte_get_job_data_object(ORTE_PROC_MY_NAME->jobid);
n=1;
while (OPAL_SUCCESS == (rc = opal_dss.unpack(&buf, &vpid, &n, ORTE_VPID))) {
/* unpack and store the node's name */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &name, &n, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
return rc;
}
/* do we already have this node? */
if (NULL == (node = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, vpid))) {
node = OBJ_NEW(orte_node_t);
node->name = name;
opal_pointer_array_set_item(orte_node_pool, vpid, node);
} else {
free(name);
}
/* if requested, unpack any aliases */
if (orte_retain_aliases) {
char *alias;
uint8_t naliases, ni;
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &naliases, &n, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
return rc;
}
for (ni=0; ni < naliases; ni++) {
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &alias, &n, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
return rc;
}
opal_argv_append_nosize(&node->alias, alias);
free(alias);
}
}
/* unpack the oversubscribed flag */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &oversub, &n, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
return rc;
}
if (NULL == (dptr = (orte_proc_t*)opal_pointer_array_get_item(daemons->procs, vpid))) {
dptr = OBJ_NEW(orte_proc_t);
dptr->name.jobid = ORTE_PROC_MY_NAME->jobid;
dptr->name.vpid = vpid;
opal_pointer_array_set_item(daemons->procs, vpid, dptr);
daemons->num_procs++;
}
if (NULL != node->daemon) {
OBJ_RELEASE(node->daemon);
}
OBJ_RETAIN(dptr);
node->daemon = dptr;
if (NULL != dptr->node) {
OBJ_RELEASE(dptr->node);
}
OBJ_RETAIN(node);
dptr->node = node;
if (0 == oversub) {
node->oversubscribed = false;
} else {
node->oversubscribed = true;
}
}
if (ORTE_ERR_UNPACK_READ_PAST_END_OF_BUFFER != rc) {
ORTE_ERROR_LOG(rc);
OBJ_DESTRUCT(&buf);
return rc;
}
rc = ORTE_SUCCESS;
orte_process_info.num_procs = daemons->num_procs;
if (orte_process_info.max_procs < orte_process_info.num_procs) {
orte_process_info.max_procs = orte_process_info.num_procs;
}
/* update num_daemons */
orte_process_info.num_daemons = daemons->num_procs;
/* update the global nidmap object for sending to
* application procs
*/
if (NULL != orte_nidmap.bytes) {
free(orte_nidmap.bytes);
orte_nidmap.bytes = NULL;
}
if (ORTE_SUCCESS != (rc = orte_util_encode_nodemap(&orte_nidmap, false))) {
ORTE_ERROR_LOG(rc);
}
if (0 < opal_output_get_verbosity(orte_nidmap_output)) {
int i;
for (i=0; i < orte_node_pool->size; i++) {
if (NULL == (node = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, i))) {
continue;
}
opal_output(0, "%s node[%d].name %s daemon %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), i,
(NULL == node->name) ? "NULL" : node->name,
(NULL == node->daemon) ? "NONE" : ORTE_VPID_PRINT(node->daemon->name.vpid));
}
}
OBJ_DESTRUCT(&buf);
return rc;
}
int orte_util_encode_pidmap(opal_byte_object_t *boptr, bool update)
{
orte_proc_t *proc;
opal_buffer_t buf;
int i, j, rc = ORTE_SUCCESS;
orte_job_t *jdata;
bool include_all;
uint8_t flag;
/* setup the working buffer */
OBJ_CONSTRUCT(&buf, opal_buffer_t);
/* check the daemon job to see if it has changed - perhaps
* new daemons were added as the result of a comm_spawn
*/
jdata = orte_get_job_data_object(ORTE_PROC_MY_NAME->jobid);
/* if it did change, then the pidmap will be going
* to new daemons - so we need to include everything.
* also include everything if we were asked to do so
*/
if (jdata->updated || !update) {
include_all = true;
} else {
include_all = false;
}
for (j=1; j < orte_job_data->size; j++) {
/* the job array is no longer left-justified and may
* have holes in it as we recover resources at job
* completion
*/
if (NULL == (jdata = (orte_job_t*)opal_pointer_array_get_item(orte_job_data, j))) {
continue;
}
/* if this job doesn't have a map, then it is a tool
* and doesn't need to be included
*/
if (NULL == jdata->map) {
continue;
}
/* if this job has already terminated, then ignore it */
if (ORTE_JOB_STATE_TERMINATED < jdata->state) {
continue;
}
/* if we want an update version and there is nothing to update, ignore it */
if (!include_all && !jdata->updated) {
continue;
}
/* flag that we included it so we don't do so again */
jdata->updated = false;
/* pack the jobid */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &jdata->jobid, 1, ORTE_JOBID))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
/* pack the number of procs */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &jdata->num_procs, 1, ORTE_VPID))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
/* cycle thru the job's procs, including only those that have
* been updated so we minimize the amount of info being sent
*/
for (i=0; i < jdata->procs->size; i++) {
if (NULL == (proc = (orte_proc_t *) opal_pointer_array_get_item(jdata->procs, i))) {
continue;
}
if (!proc->updated) {
continue;
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &proc->name.vpid, 1, ORTE_VPID))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &(proc->node->daemon->name.vpid), 1, ORTE_VPID))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &proc->local_rank, 1, ORTE_LOCAL_RANK))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &proc->node_rank, 1, ORTE_NODE_RANK))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here: https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation. In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions: 1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior. 2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation. 3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so. As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes. This commit was SVN r25476.
2011-11-15 07:40:11 +04:00
#if OPAL_HAVE_HWLOC
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &proc->cpu_bitmap, 1, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here: https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation. In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions: 1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior. 2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation. 3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so. As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes. This commit was SVN r25476.
2011-11-15 07:40:11 +04:00
#endif
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &proc->state, 1, ORTE_PROC_STATE))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &proc->app_idx, 1, ORTE_APP_IDX))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &proc->do_not_barrier, 1, OPAL_BOOL))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &proc->restarts, 1, OPAL_INT32))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
}
/* pack an invalid vpid to flag the end of this job data */
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &ORTE_NAME_INVALID->vpid, 1, ORTE_VPID))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
/* if there is a file map, then include it */
if (NULL != jdata->file_maps) {
flag = 1;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &flag, 1, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &jdata->file_maps, 1, OPAL_BUFFER))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
} else {
flag = 0;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&buf, &flag, 1, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
goto cleanup_and_return;
}
}
}
/* transfer the payload to the byte object */
opal_dss.unload(&buf, (void**)&boptr->bytes, &boptr->size);
cleanup_and_return:
OBJ_DESTRUCT(&buf);
return rc;
}
/* only APPS call this function - daemons have their own */
int orte_util_decode_pidmap(opal_byte_object_t *bo)
{
orte_vpid_t i, num_procs, *vptr, daemon;
orte_local_rank_t local_rank;
orte_node_rank_t node_rank;
At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here: https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation. In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions: 1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior. 2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation. 3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so. As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes. This commit was SVN r25476.
2011-11-15 07:40:11 +04:00
#if OPAL_HAVE_HWLOC
char *cpu_bitmap;
At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here: https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation. In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions: 1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior. 2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation. 3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so. As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes. This commit was SVN r25476.
2011-11-15 07:40:11 +04:00
#endif
opal_hwloc_locality_t locality;
orte_std_cntr_t n;
opal_buffer_t buf;
int rc;
orte_proc_state_t state;
orte_app_idx_t app_idx;
int32_t restarts;
orte_process_name_t proc, dmn;
orte_namelist_t *nm;
opal_list_t jobs;
char *hostname;
uint8_t flag;
opal_buffer_t *bptr;
bool barrier;
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
opal_identifier_t *id;
/* xfer the byte object to a buffer for unpacking */
OBJ_CONSTRUCT(&buf, opal_buffer_t);
if (ORTE_SUCCESS != (rc = opal_dss.load(&buf, bo->bytes, bo->size))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* set the daemon jobid */
dmn.jobid = ORTE_DAEMON_JOBID(ORTE_PROC_MY_NAME->jobid);
n = 1;
/* cycle through the buffer */
OBJ_CONSTRUCT(&jobs, opal_list_t);
while (ORTE_SUCCESS == (rc = opal_dss.unpack(&buf, &proc.jobid, &n, ORTE_JOBID))) {
OPAL_OUTPUT_VERBOSE((2, orte_nidmap_output,
"%s orte:util:decode:pidmap working job %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_JOBID_PRINT(proc.jobid)));
/* record the jobid */
nm = OBJ_NEW(orte_namelist_t);
nm->name.jobid = proc.jobid;
opal_list_append(&jobs, &nm->super);
/* unpack and store the number of procs */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &num_procs, &n, ORTE_VPID))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
proc.vpid = ORTE_VPID_INVALID;
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
id = (opal_identifier_t*)&proc;
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_NPROCS, &num_procs, OPAL_UINT32))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* cycle thru the data until we hit an INVALID vpid indicating
* all data for this job has been read
*/
n=1;
while (OPAL_SUCCESS == (rc = opal_dss.unpack(&buf, &proc.vpid, &n, ORTE_VPID))) {
if (ORTE_VPID_INVALID == proc.vpid) {
break;
}
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &dmn.vpid, &n, ORTE_VPID))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &local_rank, &n, ORTE_LOCAL_RANK))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &node_rank, &n, ORTE_NODE_RANK))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here: https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation. In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions: 1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior. 2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation. 3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so. As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes. This commit was SVN r25476.
2011-11-15 07:40:11 +04:00
#if OPAL_HAVE_HWLOC
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &cpu_bitmap, &n, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here: https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation. In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions: 1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior. 2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation. 3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so. As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes. This commit was SVN r25476.
2011-11-15 07:40:11 +04:00
#endif
if (proc.jobid == ORTE_PROC_MY_NAME->jobid &&
proc.vpid == ORTE_PROC_MY_NAME->vpid) {
/* set mine */
orte_process_info.my_local_rank = local_rank;
orte_process_info.my_node_rank = node_rank;
#if OPAL_HAVE_HWLOC
if (NULL != cpu_bitmap) {
orte_process_info.cpuset = strdup(cpu_bitmap);
}
#endif
}
/* apps don't need the rest of the data in the buffer for this proc,
* but we have to unpack it anyway to stay in sync
*/
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &state, &n, ORTE_PROC_STATE))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &app_idx, &n, ORTE_APP_IDX))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &barrier, &n, OPAL_BOOL))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &restarts, &n, OPAL_INT32))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* store the values in the database */
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_LOCALRANK, &local_rank, ORTE_LOCAL_RANK))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_NODERANK, &node_rank, ORTE_NODE_RANK))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
#if OPAL_HAVE_HWLOC
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_CPUSET, cpu_bitmap, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
if (NULL != cpu_bitmap) {
free(cpu_bitmap);
}
#endif
/* we don't need to store the rest of the values
* for ourself in the database
* as we already did so during startup
*/
if (proc.jobid != ORTE_PROC_MY_NAME->jobid ||
proc.vpid != ORTE_PROC_MY_NAME->vpid) {
/* store the data for this proc */
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_DAEMON_VPID, &dmn.vpid, OPAL_UINT32))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* lookup and store the hostname for this proc */
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
id = (opal_identifier_t*)&dmn;
if (ORTE_SUCCESS != (rc = opal_db.fetch_pointer((*id), ORTE_DB_HOSTNAME, (void**)&hostname, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
id = (opal_identifier_t*)&proc;
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_HOSTNAME, hostname, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
}
/* see if there is a file map */
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &flag, &n, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
if (0 != flag) {
/* unpack it and discard */
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &bptr, &n, OPAL_BUFFER))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
OBJ_RELEASE(bptr);
}
/* setup for next cycle */
n = 1;
}
if (ORTE_ERR_UNPACK_READ_PAST_END_OF_BUFFER != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
rc = ORTE_SUCCESS;
/* now that we have all the data, we are guaranteed
* to know our own node, so go back and record the
* locality of each proc relative to me
*/
while (NULL != (nm = (orte_namelist_t*)opal_list_remove_first(&jobs))) {
proc.jobid = nm->name.jobid;
/* recover the number of procs in this job */
vptr = &num_procs;
proc.vpid = ORTE_VPID_INVALID;
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
id = (opal_identifier_t*)&proc;
if (ORTE_SUCCESS != (rc = opal_db.fetch((*id), ORTE_DB_NPROCS, (void**)&vptr, OPAL_UINT32))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
for (i=0; i < num_procs; i++) {
if (ORTE_PROC_MY_NAME->vpid == i &&
ORTE_PROC_MY_NAME->jobid == proc.jobid) {
/* this is me */
continue;
}
proc.vpid = i;
/* recover the daemon for this proc */
vptr = &daemon;
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
if (ORTE_SUCCESS != (rc = opal_db.fetch((*id), ORTE_DB_DAEMON_VPID, (void**)&vptr, OPAL_UINT32))) {
if (orte_staged_execution) {
/* when using staged execution, we will see processes that have not
* yet been launched and thus do not have a daemon assigned to them.
* This is not an error - we just need to ignore them
*/
rc = ORTE_SUCCESS;
continue;
}
ORTE_ERROR_LOG(rc);
opal_output(0, "%s\tNOT FOUND FOR PROC %s", ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), ORTE_NAME_PRINT(&proc));
goto cleanup;
}
if (daemon == ORTE_PROC_MY_DAEMON->vpid) {
OPAL_OUTPUT_VERBOSE((2, orte_nidmap_output,
"%s orte:util:decode:pidmap proc %s shares node",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&proc)));
/* we share a node, so add them to the count of peers
* sharing the node with me
*/
orte_process_info.num_local_peers++;
#if OPAL_HAVE_HWLOC
/* retrieve the binding for the other proc */
if (ORTE_SUCCESS != (rc = opal_db.fetch((*id), ORTE_DB_CPUSET, (void**)&cpu_bitmap, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* we share a node - see what else we share */
locality = opal_hwloc_base_get_relative_locality(opal_hwloc_topology,
orte_process_info.cpuset,
cpu_bitmap);
#else
locality = OPAL_PROC_ON_NODE;
#endif
} else {
/* we don't share a node */
OPAL_OUTPUT_VERBOSE((2, orte_nidmap_output,
"%s orte:util:decode:pidmap proc %s does NOT share my node [my daemon %s, their daemon %s]",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&proc),
ORTE_VPID_PRINT(ORTE_PROC_MY_DAEMON->vpid),
ORTE_VPID_PRINT(daemon)));
locality = OPAL_PROC_NON_LOCAL;
}
/* store the locality */
OPAL_OUTPUT_VERBOSE((2, orte_nidmap_output,
"%s orte:util:decode:pidmap set proc %s locality to %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&proc),
opal_hwloc_base_print_locality(locality)));
Per the meeting on moving the BTLs to OPAL, move the ORTE database "db" framework to OPAL so the relocated BTLs can access it. Because the data is indexed by process, this requires that we define a new "opal_identifier_t" that corresponds to the orte_process_name_t struct. In order to support multiple run-times, this is defined in opal/mca/db/db_types.h as a uint64_t without identifying the meaning of any part of that data. A few changes were required to support this move: 1. the PMI component used to identify rte-related data (e.g., host name, bind level) and package them as a unit to reduce the number of PMI keys. This code was moved up to the ORTE layer as the OPAL layer has no understanding of these concepts. In addition, the component locally stored data based on process jobid/vpid - this could no longer be supported (see below for the solution). 2. the hash component was updated to use the new opal_identifier_t instead of orte_process_name_t as its index for storing data in the hash tables. Previously, we did a hash on the vpid and stored the data in a 32-bit hash table. In the revised system, we don't see a separate "vpid" field - we only have a 64-bit opaque value. The orte_process_name_t hash turned out to do nothing useful, so we now store the data in a 64-bit hash table. Preliminary tests didn't show any identifiable change in behavior or performance, but we'll have to see if a move back to the 32-bit table is required at some later time. 3. the db framework was a "select one" system. However, since the PMI component could no longer use its internal storage system, the framework has now been changed to a "select many" mode of operation. This allows the hash component to handle all internal storage, while the PMI component only handles pushing/pulling things from the PMI system. This was something we had planned for some time - when fetching data, we first check internal storage to see if we already have it, and then automatically go to the global system to look for it if we don't. Accordingly, the framework was provided with a custom query function used during "select" that lets you seperately specify the "store" and "fetch" ordering. 4. the ORTE grpcomm and ess/pmi components, and the nidmap code, were updated to work with the new db framework and to specify internal/global storage options. No changes were made to the MPI layer, except for modifying the ORTE component of the OMPI/rte framework to support the new db framework. This commit was SVN r28112.
2013-02-26 21:50:04 +04:00
if (ORTE_SUCCESS != (rc = opal_db.store((*id), OPAL_DB_INTERNAL, ORTE_DB_LOCALITY, &locality, OPAL_HWLOC_LOCALITY_T))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
}
}
At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here: https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation. In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions: 1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior. 2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation. 3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so. As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes. This commit was SVN r25476.
2011-11-15 07:40:11 +04:00
cleanup:
OBJ_DESTRUCT(&buf);
return rc;
}
static void fm_release(void *cbdata)
{
opal_buffer_t *bptr = (opal_buffer_t*)cbdata;
OBJ_RELEASE(bptr);
}
int orte_util_decode_daemon_pidmap(opal_byte_object_t *bo)
{
orte_jobid_t jobid;
orte_vpid_t vpid, num_procs, dmn;
orte_local_rank_t local_rank;
orte_node_rank_t node_rank;
#if OPAL_HAVE_HWLOC
char *cpu_bitmap;
#endif
orte_std_cntr_t n;
opal_buffer_t buf;
int rc, j, k;
orte_job_t *jdata, *daemons;
orte_proc_t *proc, *pptr;
orte_node_t *node, *nptr;
orte_proc_state_t state;
orte_app_idx_t app_idx;
int32_t restarts;
orte_job_map_t *map;
bool found;
uint8_t flag;
opal_buffer_t *bptr;
bool barrier;
/* xfer the byte object to a buffer for unpacking */
OBJ_CONSTRUCT(&buf, opal_buffer_t);
if (ORTE_SUCCESS != (rc = opal_dss.load(&buf, bo->bytes, bo->size))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
daemons = orte_get_job_data_object(ORTE_PROC_MY_NAME->jobid);
n = 1;
/* cycle through the buffer */
while (ORTE_SUCCESS == (rc = opal_dss.unpack(&buf, &jobid, &n, ORTE_JOBID))) {
/* see if we have this job object - could be a restart scenario */
if (NULL == (jdata = orte_get_job_data_object(jobid))) {
/* need to create this job */
jdata = OBJ_NEW(orte_job_t);
jdata->jobid = jobid;
opal_pointer_array_set_item(orte_job_data, ORTE_LOCAL_JOBID(jobid), jdata);
}
/* setup the map */
map = jdata->map;
if (NULL == map) {
jdata->map = OBJ_NEW(orte_job_map_t);
map = jdata->map;
}
/* unpack the number of procs */
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &num_procs, &n, ORTE_VPID))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
jdata->num_procs = num_procs;
/* cycle thru the data until we hit an INVALID vpid indicating
* all data for this job has been read
*/
n=1;
while (OPAL_SUCCESS == (rc = opal_dss.unpack(&buf, &vpid, &n, ORTE_VPID))) {
if (ORTE_VPID_INVALID == vpid) {
break;
}
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &dmn, &n, ORTE_VPID))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &local_rank, &n, ORTE_LOCAL_RANK))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &node_rank, &n, ORTE_NODE_RANK))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
#if OPAL_HAVE_HWLOC
n=1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(&buf, &cpu_bitmap, &n, OPAL_STRING))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
#endif
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &state, &n, ORTE_PROC_STATE))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &app_idx, &n, ORTE_APP_IDX))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &barrier, &n, OPAL_BOOL))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &restarts, &n, OPAL_INT32))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
/* store the data for this proc */
if (NULL == (proc = (orte_proc_t*)opal_pointer_array_get_item(jdata->procs, vpid))) {
proc = OBJ_NEW(orte_proc_t);
proc->name.jobid = jdata->jobid;
proc->name.vpid = vpid;
opal_pointer_array_set_item(jdata->procs, vpid, proc);
}
/* lookup the node - should always be present */
if (NULL == (node = (orte_node_t*)opal_pointer_array_get_item(orte_node_pool, dmn))) {
/* this should never happen, but protect ourselves anyway */
node = OBJ_NEW(orte_node_t);
/* get the daemon */
if (NULL == (pptr = (orte_proc_t*)opal_pointer_array_get_item(daemons->procs, dmn))) {
pptr = OBJ_NEW(orte_proc_t);
pptr->name.jobid = ORTE_PROC_MY_NAME->jobid;
pptr->name.vpid = dmn;
opal_pointer_array_set_item(daemons->procs, dmn, pptr);
}
node->daemon = pptr;
opal_pointer_array_set_item(orte_node_pool, dmn, node);
}
if (NULL != proc->node) {
if (node != proc->node) {
/* proc has moved - cleanup the prior node proc array */
for (j=0; j < proc->node->procs->size; j++) {
if (NULL == (pptr = (orte_proc_t*)opal_pointer_array_get_item(proc->node->procs, j))) {
continue;
}
if (pptr == proc) {
/* maintain accounting */
OBJ_RELEASE(pptr);
opal_pointer_array_set_item(proc->node->procs, j, NULL);
proc->node->num_procs--;
if (0 == proc->node->num_procs) {
/* remove node from the map */
for (k=0; k < map->nodes->size; k++) {
if (NULL == (nptr = (orte_node_t*)opal_pointer_array_get_item(map->nodes, k))) {
continue;
}
if (nptr == proc->node) {
/* maintain accounting */
OBJ_RELEASE(nptr);
opal_pointer_array_set_item(map->nodes, k, NULL);
map->num_nodes--;
break;
}
}
}
break;
}
}
}
OBJ_RELEASE(proc->node);
}
/* see if this node is already in the map */
found = false;
for (j=0; j < map->nodes->size; j++) {
if (NULL == (nptr = (orte_node_t*)opal_pointer_array_get_item(map->nodes, j))) {
continue;
}
if (nptr == node) {
found = true;
break;
}
}
if (!found) {
opal_pointer_array_add(map->nodes, node);
map->num_nodes++;
}
/* add the node to the proc */
OBJ_RETAIN(node);
proc->node = node;
/* add the proc to the node */
OBJ_RETAIN(proc);
opal_pointer_array_add(node->procs, proc);
/* update proc values */
proc->local_rank = local_rank;
proc->node_rank = node_rank;
proc->app_idx = app_idx;
proc->do_not_barrier = barrier;
proc->restarts = restarts;
proc->state = state;
#if OPAL_HAVE_HWLOC
proc->cpu_bitmap = cpu_bitmap;
#endif
}
/* see if we have a file map for this job */
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &flag, &n, OPAL_UINT8))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
if (0 != flag) {
/* yep - retrieve and load it */
n=1;
if (OPAL_SUCCESS != (rc = opal_dss.unpack(&buf, &bptr, &n, OPAL_BUFFER))) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
if (NULL != orte_dfs.load_file_maps) {
orte_dfs.load_file_maps(jdata->jobid, bptr, fm_release, bptr);
}
}
/* setup for next cycle */
n = 1;
}
if (ORTE_ERR_UNPACK_READ_PAST_END_OF_BUFFER != rc) {
ORTE_ERROR_LOG(rc);
goto cleanup;
}
rc = ORTE_SUCCESS;
/* update our global pidmap object for sending
* to procs
*/
if (NULL != orte_pidmap.bytes) {
free(orte_pidmap.bytes);
}
if (ORTE_SUCCESS != (rc = orte_util_encode_pidmap(&orte_pidmap, false))) {
ORTE_ERROR_LOG(rc);
}
cleanup:
OBJ_DESTRUCT(&buf);
return rc;
}