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openmpi/orte/mca/grpcomm/base/grpcomm_base_receive.c
Ralph Castain a200e4f865 As per the RFC, bring in the ORTE async progress code and the rewrite of OOB: 
*** THIS RFC INCLUDES A MINOR CHANGE TO THE MPI-RTE INTERFACE ***

Note: during the course of this work, it was necessary to completely separate the MPI and RTE progress engines. There were multiple places in the MPI layer where ORTE_WAIT_FOR_COMPLETION was being used. A new OMPI_WAIT_FOR_COMPLETION macro was created (defined in ompi/mca/rte/rte.h) that simply cycles across opal_progress until the provided flag becomes false. Places where the MPI layer blocked waiting for RTE to complete an event have been modified to use this macro.

***************************************************************************************

I am reissuing this RFC because of the time that has passed since its original release. Since its initial release and review, I have debugged it further to ensure it fully supports tests like loop_spawn. It therefore seems ready for merge back to the trunk. Given its prior review, I have set the timeout for one week.

The code is in  https://bitbucket.org/rhc/ompi-oob2


WHAT:    Rewrite of ORTE OOB

WHY:       Support asynchronous progress and a host of other features

WHEN:    Wed, August 21

SYNOPSIS:
The current OOB has served us well, but a number of limitations have been identified over the years. Specifically:

* it is only progressed when called via opal_progress, which can lead to hangs or recursive calls into libevent (which is not supported by that code)

* we've had issues when multiple NICs are available as the code doesn't "shift" messages between transports - thus, all nodes had to be available via the same TCP interface.

* the OOB "unloads" incoming opal_buffer_t objects during the transmission, thus preventing use of OBJ_RETAIN in the code when repeatedly sending the same message to multiple recipients

* there is no failover mechanism across NICs - if the selected NIC (or its attached switch) fails, we are forced to abort

* only one transport (i.e., component) can be "active"


The revised OOB resolves these problems:

* async progress is used for all application processes, with the progress thread blocking in the event library

* each available TCP NIC is supported by its own TCP module. The ability to asynchronously progress each module independently is provided, but not enabled by default (a runtime MCA parameter turns it "on")

* multi-address TCP NICs (e.g., a NIC with both an IPv4 and IPv6 address, or with virtual interfaces) are supported - reachability is determined by comparing the contact info for a peer against all addresses within the range covered by the address/mask pairs for the NIC.

* a message that arrives on one TCP NIC is automatically shifted to whatever NIC that is connected to the next "hop" if that peer cannot be reached by the incoming NIC. If no TCP module will reach the peer, then the OOB attempts to send the message via all other available components - if none can reach the peer, then an "error" is reported back to the RML, which then calls the errmgr for instructions.

* opal_buffer_t now conforms to standard object rules re OBJ_RETAIN as we no longer "unload" the incoming object

* NIC failure is reported to the TCP component, which then tries to resend the message across any other available TCP NIC. If that doesn't work, then the message is given back to the OOB base to try using other components. If all that fails, then the error is reported to the RML, which reports to the errmgr for instructions

* obviously from the above, multiple OOB components (e.g., TCP and UD) can be active in parallel

* the matching code has been moved to the RML (and out of the OOB/TCP component) so it is independent of transport

* routing is done by the individual OOB modules (as opposed to the RML). Thus, both routed and non-routed transports can simultaneously be active

* all blocking send/recv APIs have been removed. Everything operates asynchronously.


KNOWN LIMITATIONS:

* although provision is made for component failover as described above, the code for doing so has not been fully implemented yet. At the moment, if all connections for a given peer fail, the errmgr is notified of a "lost connection", which by default results in termination of the job if it was a lifeline

* the IPv6 code is present and compiles, but is not complete. Since the current IPv6 support in the OOB doesn't work anyway, I don't consider this a blocker

* routing is performed at the individual module level, yet the active routed component is selected on a global basis. We probably should update that to reflect that different transports may need/choose to route in different ways

* obviously, not every error path has been tested nor necessarily covered

* determining abnormal termination is more challenging than in the old code as we now potentially have multiple ways of connecting to a process. Ideally, we would declare "connection failed" when *all* transports can no longer reach the process, but that requires some additional (possibly complex) code. For now, the code replicates the old behavior only somewhat modified - i.e., if a module sees its connection fail, it checks to see if it is a lifeline. If so, it notifies the errmgr that the lifeline is lost - otherwise, it notifies the errmgr that a non-lifeline connection was lost.

* reachability is determined solely on the basis of a shared subnet address/mask - more sophisticated algorithms (e.g., the one used in the tcp btl) are required to handle routing via gateways

* the RML needs to assign sequence numbers to each message on a per-peer basis. The receiving RML will then deliver messages in order, thus preventing out-of-order messaging in the case where messages travel across different transports or a message needs to be redirected/resent due to failure of a NIC

This commit was SVN r29058.
2013-08-22 16:37:40 +00:00

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Исходник Ответственный История

/* -*- C -*-
*
* Copyright (c) 2004-2010 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 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.
* Copyright (c) 2011-2012 Los Alamos National Security, LLC.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/** @file:
*
*/
/*
* includes
*/
#include "orte_config.h"
#include "opal/dss/dss.h"
#include "orte/util/proc_info.h"
#include "orte/util/error_strings.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/odls/base/base.h"
#include "orte/mca/rml/rml.h"
#include "orte/mca/routed/routed.h"
#include "orte/mca/state/state.h"
#include "orte/util/name_fns.h"
#include "orte/runtime/orte_globals.h"
#include "orte/mca/grpcomm/grpcomm_types.h"
#include "orte/mca/grpcomm/grpcomm.h"
#include "orte/mca/grpcomm/base/base.h"
static bool recv_issued=false;
static void daemon_local_recv(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata);
static void daemon_coll_recv(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata);
static void app_recv(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata);
static void coll_id_req(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata);
int orte_grpcomm_base_comm_start(void)
{
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:receive start comm",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
if (!recv_issued) {
if (ORTE_PROC_IS_HNP || ORTE_PROC_IS_DAEMON) {
orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_COLLECTIVE,
ORTE_RML_PERSISTENT,
daemon_local_recv, NULL);
orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_XCAST,
ORTE_RML_PERSISTENT,
orte_grpcomm_base_xcast_recv, NULL);
orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_DAEMON_COLL,
ORTE_RML_PERSISTENT,
daemon_coll_recv, NULL);
if (ORTE_PROC_IS_DAEMON) {
orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_ROLLUP,
ORTE_RML_PERSISTENT,
orte_grpcomm_base_rollup_recv, NULL);
}
if (ORTE_PROC_IS_HNP) {
orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_COLL_ID_REQ,
ORTE_RML_PERSISTENT,
coll_id_req, NULL);
}
recv_issued = true;
} else if (ORTE_PROC_IS_APP) {
orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_COLLECTIVE,
ORTE_RML_PERSISTENT,
app_recv, NULL);
recv_issued = true;
}
}
return ORTE_SUCCESS;
}
void orte_grpcomm_base_comm_stop(void)
{
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:receive stop comm",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
if (recv_issued) {
orte_rml.recv_cancel(ORTE_NAME_WILDCARD, ORTE_RML_TAG_COLLECTIVE);
if (ORTE_PROC_IS_HNP || ORTE_PROC_IS_DAEMON) {
orte_rml.recv_cancel(ORTE_NAME_WILDCARD, ORTE_RML_TAG_XCAST);
orte_rml.recv_cancel(ORTE_NAME_WILDCARD, ORTE_RML_TAG_DAEMON_COLL);
}
if (ORTE_PROC_IS_HNP) {
orte_rml.recv_cancel(ORTE_NAME_WILDCARD, ORTE_RML_TAG_COLL_ID_REQ);
}
recv_issued = false;
}
}
static void coll_id_req(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata)
{
orte_grpcomm_coll_id_t id;
opal_buffer_t *relay;
int rc;
id = orte_grpcomm_base_get_coll_id();
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:receive proc %s requested coll id - returned id %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(sender), id));
relay = OBJ_NEW(opal_buffer_t);
if (ORTE_SUCCESS != (rc = opal_dss.pack(relay, &id, 1, ORTE_GRPCOMM_COLL_ID_T))) {
ORTE_ERROR_LOG(rc);
OBJ_RELEASE(relay);
return;
}
if (0 > (rc = orte_rml.send_buffer_nb(sender, relay, ORTE_RML_TAG_COLL_ID,
orte_rml_send_callback, NULL))) {
ORTE_ERROR_LOG(rc);
OBJ_RELEASE(relay);
return;
}
}
/* process incoming coll returns */
static void app_recv(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata)
{
orte_grpcomm_collective_t *coll, *cptr;
opal_list_item_t *item;
int n, rc;
orte_grpcomm_coll_id_t id;
orte_namelist_t *nm;
bool added;
/* get the collective id */
n = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &id, &n, ORTE_GRPCOMM_COLL_ID_T))) {
ORTE_ERROR_LOG(rc);
return;
}
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:receive processing collective return for id %d recvd from %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), id, ORTE_NAME_PRINT(sender)));
/* if the sender is my daemon, then this collective is
* a global one and is complete
*/
if (ORTE_PROC_MY_DAEMON->jobid == sender->jobid &&
ORTE_PROC_MY_DAEMON->vpid == sender->vpid) {
/* search my list of active collectives */
for (item = opal_list_get_first(&orte_grpcomm_base.active_colls);
item != opal_list_get_end(&orte_grpcomm_base.active_colls);
item = opal_list_get_next(item)) {
coll = (orte_grpcomm_collective_t*)item;
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s CHECKING COLL id %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
coll->id));
if (id == coll->id) {
/* see if the collective needs another step */
if (NULL != coll->next_cb) {
/* have to go here next */
coll->next_cb(buffer, coll->next_cbdata);
break;
}
/* cleanup */
opal_list_remove_item(&orte_grpcomm_base.active_colls, &coll->super);
/* callback the specified function */
if (NULL != coll->cbfunc) {
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:receive executing callback",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
coll->cbfunc(buffer, coll->cbdata);
}
/* flag the collective as complete - must do this after we remove the
* item and do the callback because someone may be waiting inside
* a different event base
*/
coll->active = false;
/* do NOT release the collective - it is the responsibility
* of whomever passed it down to us
*/
break;
}
}
return;
}
/* this came from another application process, so it
* belongs to a non-global collective taking place
* only between procs. Since there is a race condition
* between when we might create our own collective and
* when someone might send it to us, we may not have
* the collective on our list - see if we do
*/
coll = NULL;
added = false;
for (item = opal_list_get_first(&orte_grpcomm_base.active_colls);
item != opal_list_get_end(&orte_grpcomm_base.active_colls);
item = opal_list_get_next(item)) {
cptr = (orte_grpcomm_collective_t*)item;
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s CHECKING COLL id %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
cptr->id));
if (id == cptr->id) {
/* aha - we do have it */
coll = cptr;
break;
}
}
if (NULL == coll) {
/* nope - add it */
coll = OBJ_NEW(orte_grpcomm_collective_t);
coll->id = id;
opal_list_append(&orte_grpcomm_base.active_colls, &coll->super);
/* mark that we added it - since we can't possibly know
* the participants, we need to mark this collective so
* we don't try to test for completeness
*/
added = true;
}
/* append the sender to the list of targets so
* we know we already have their contribution
*/
nm = OBJ_NEW(orte_namelist_t);
nm->name.jobid = sender->jobid;
nm->name.vpid = sender->vpid;
opal_list_append(&coll->targets, &nm->super);
/* transfer the rest of the incoming data to the collection bucket.
* Note that we don't transfer it to the collective's buffer
* as the modex itself uses that
*/
opal_dss.copy_payload(&coll->local_bucket, buffer);
/* if we already know the participants, and the length of the
* participant list equals the length of the target list, then
* the collective is complete
*/
if (!added &&
opal_list_get_size(&coll->participants) == opal_list_get_size(&coll->targets)) {
/* replace whatever is in the collective's buffer
* field with what we collected
*/
OBJ_DESTRUCT(&coll->buffer);
OBJ_CONSTRUCT(&coll->buffer, opal_buffer_t);
opal_dss.copy_payload(&coll->buffer, &coll->local_bucket);
/* see if the collective needs another step */
if (NULL != coll->next_cb) {
/* have to go here next */
coll->next_cb(&coll->buffer, coll->next_cbdata);
return;
}
/* cleanup */
opal_list_remove_item(&orte_grpcomm_base.active_colls, &coll->super);
/* callback the specified function */
if (NULL != coll->cbfunc) {
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:receive executing callback",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
coll->cbfunc(&coll->buffer, coll->cbdata);
}
/* flag the collective as complete - must do this after we remove the
* item and do the callback because someone may be waiting inside
* a different event base
*/
coll->active = false;
/* do NOT release the collective - it is the responsibility
* of whomever passed it down to us
*/
}
}
/**** DAEMON COLLECTIVE SUPPORT ****/
/* recv for collective messages sent from a daemon's local procs */
static void daemon_local_recv(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata)
{
int32_t rc, n;
orte_grpcomm_collective_t *coll;
orte_grpcomm_coll_id_t id;
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s COLLECTIVE RECVD FROM %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(sender)));
/* unpack the collective id */
n = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &id, &n, ORTE_GRPCOMM_COLL_ID_T))) {
ORTE_ERROR_LOG(rc);
return;
}
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s WORKING COLLECTIVE %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), id));
/* setup the collective for this id - if it's already present,
* then this will just return the existing structure
*/
coll = orte_grpcomm_base_setup_collective(id);
/* record this proc's participation and its data */
coll->num_local_recvd++;
opal_dss.copy_payload(&coll->local_bucket, buffer);
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s PROGRESSING COLLECTIVE %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), id));
orte_grpcomm_base_progress_collectives();
}
void orte_grpcomm_base_pack_collective(opal_buffer_t *relay,
orte_jobid_t jobid,
orte_grpcomm_collective_t *coll,
orte_grpcomm_internal_stage_t stg)
{
opal_dss.pack(relay, &coll->id, 1, ORTE_GRPCOMM_COLL_ID_T);
if (ORTE_GRPCOMM_INTERNAL_STG_LOCAL == stg) {
opal_dss.pack(relay, &jobid, 1, ORTE_JOBID);
opal_dss.pack(relay, &coll->num_local_recvd, 1, ORTE_VPID);
opal_dss.copy_payload(relay, &coll->local_bucket);
} else if (ORTE_GRPCOMM_INTERNAL_STG_APP == stg) {
/* don't need the jobid here as the recipient can get
* it from the sender's name
*/
opal_dss.copy_payload(relay, &coll->buffer);
} else if (ORTE_GRPCOMM_INTERNAL_STG_GLOBAL == stg) {
opal_dss.pack(relay, &jobid, 1, ORTE_JOBID);
opal_dss.pack(relay, &coll->num_global_recvd, 1, ORTE_VPID);
opal_dss.copy_payload(relay, &coll->buffer);
} else {
ORTE_ERROR_LOG(ORTE_ERR_BAD_PARAM);
}
}
void orte_grpcomm_base_progress_collectives(void)
{
opal_list_item_t *item;
orte_grpcomm_collective_t *coll;
orte_namelist_t *nm;
orte_job_t *jdata;
opal_buffer_t *relay;
int rc;
/* cycle thru all known collectives - any collective on the list
* must have come from either a local proc or receiving a global
* collective. Either way, the number of required recipients
* is the number of local procs for that job
*/
item = opal_list_get_first(&orte_grpcomm_base.active_colls);
while (item != opal_list_get_end(&orte_grpcomm_base.active_colls)) {
coll = (orte_grpcomm_collective_t*)item;
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s PROGRESSING COLL id %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
coll->id));
/* if this collective is already locally complete, then ignore it */
if (coll->locally_complete) {
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s COLL %d IS LOCALLY COMPLETE",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
coll->id));
goto next_coll;
}
/* get the jobid of the participants in this collective */
if (NULL == (nm = (orte_namelist_t*)opal_list_get_first(&coll->participants))) {
opal_output(0, "NO PARTICIPANTS");
goto next_coll;
}
/* get the job object for this participant */
if (NULL == (jdata = orte_get_job_data_object(nm->name.jobid))) {
/* if the job object isn't found, then we can't progress
* this collective
*/
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s COLL %d JOBID %s NOT FOUND",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
coll->id, ORTE_JOBID_PRINT(nm->name.jobid)));
goto next_coll;
}
/* all local procs from this job are required to participate */
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s ALL LOCAL PROCS FOR JOB %s CONTRIBUTE %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_JOBID_PRINT(jdata->jobid),
(int)jdata->num_local_procs));
/* see if all reqd participants are done */
if (jdata->num_local_procs == coll->num_local_recvd) {
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s COLLECTIVE %d LOCALLY COMPLETE - SENDING TO GLOBAL COLLECTIVE",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), coll->id));
/* mark it as locally complete */
coll->locally_complete = true;
/* pack the collective */
relay = OBJ_NEW(opal_buffer_t);
orte_grpcomm_base_pack_collective(relay, jdata->jobid,
coll, ORTE_GRPCOMM_INTERNAL_STG_LOCAL);
/* send it to our global collective handler */
if (0 > (rc = orte_rml.send_buffer_nb(ORTE_PROC_MY_NAME, relay,
ORTE_RML_TAG_DAEMON_COLL,
orte_rml_send_callback, NULL))) {
ORTE_ERROR_LOG(rc);
OBJ_RELEASE(relay);
}
}
next_coll:
item = opal_list_get_next(item);
}
}
static void daemon_coll_recv(int status, orte_process_name_t* sender,
opal_buffer_t* data, orte_rml_tag_t tag,
void* cbdata)
{
orte_job_t *jdata;
orte_std_cntr_t n;
opal_list_item_t *item;
orte_vpid_t np;
int rc;
orte_grpcomm_collective_t *coll;
orte_namelist_t *nm;
orte_grpcomm_coll_id_t id;
bool do_progress;
opal_buffer_t *relay;
orte_jobid_t jobid;
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:daemon_coll: daemon collective recvd from %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(sender)));
/* get the collective id */
n = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(data, &id, &n, ORTE_GRPCOMM_COLL_ID_T))) {
ORTE_ERROR_LOG(rc);
return;
}
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:daemon_coll: WORKING COLLECTIVE %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), id));
/* setup the collective for this id - if it's already present,
* then this will just return the existing structure
*/
coll = orte_grpcomm_base_setup_collective(id);
/* record that we received a bucket */
coll->num_peer_buckets++;
/* unpack the jobid */
n = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(data, &jobid, &n, ORTE_JOBID))) {
ORTE_ERROR_LOG(rc);
return;
}
/* find this job */
do_progress = true;
if (NULL == (jdata = orte_get_job_data_object(jobid))) {
/* if we can't find it, then we haven't processed the
* launch msg for this job yet - can't happen with
* our own local procs, but this could involve a proc
* running remotely that we don't know about yet
*/
do_progress = false;
}
if (do_progress && 0 == jdata->num_local_procs) {
coll->locally_complete = true;
}
/* unpack the number of contributors involved in the incoming data */
n = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(data, &np, &n, ORTE_VPID))) {
ORTE_ERROR_LOG(rc);
return;
}
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:daemon_coll: NUM CONTRIBS: %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_VPID_PRINT(np)));
/* add it to the number of global recvd */
coll->num_global_recvd += np;
/* transfer the data */
opal_dss.copy_payload(&coll->buffer, data);
/* are we done? */
if (!do_progress || !coll->locally_complete) {
/* can't continue - missing at least one launch msg
* or not locally complete
*/
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:daemon_coll: CANNOT PROGRESS",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
return;
}
/* determine how many buckets we should receive from others
* involved in this collective - need to know the number
* of total contributors from all buckets being relayed
* thru us
*/
orte_routed.get_routing_list(ORTE_GRPCOMM_COLL_PEERS, coll);
np = 1; /* account for our own bucket */
while (NULL != (item = opal_list_remove_first(&coll->targets))) {
nm = (orte_namelist_t*)item;
if (ORTE_VPID_WILDCARD == nm->name.vpid) {
/* wait for input from all daemons */
np = orte_process_info.num_procs;
break;
} else {
np++;
}
}
/* clear the list for reuse */
while (NULL != (nm = (orte_namelist_t*)opal_list_remove_first(&coll->targets))) {
OBJ_RELEASE(nm);
}
/* relay the data, if required */
if (np == coll->num_peer_buckets) {
orte_routed.get_routing_list(ORTE_GRPCOMM_COLL_RELAY, coll);
while (NULL != (nm = (orte_namelist_t*)opal_list_remove_first(&coll->targets))) {
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:daemon_coll: RELAYING COLLECTIVE TO %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&nm->name)));
relay = OBJ_NEW(opal_buffer_t);
orte_grpcomm_base_pack_collective(relay, jobid,
coll, ORTE_GRPCOMM_INTERNAL_STG_GLOBAL);
if (ORTE_VPID_WILDCARD == nm->name.vpid) {
/* this is going to everyone in this job, so use xcast */
orte_grpcomm.xcast(nm->name.jobid, relay, ORTE_RML_TAG_DAEMON_COLL);
OBJ_RELEASE(relay);
}
/* otherwise, send to each member, but don't send it back to the
* sender as that can create an infinite loop
*/
if (nm->name.vpid == sender->vpid) {
OBJ_RELEASE(relay);
} else {
if (0 > orte_rml.send_buffer_nb(&nm->name, relay, ORTE_RML_TAG_DAEMON_COLL,
orte_rml_send_callback, NULL)) {
ORTE_ERROR_LOG(ORTE_ERR_COMM_FAILURE);
OBJ_RELEASE(relay);
}
}
OBJ_RELEASE(nm);
}
}
/* clear the list for reuse */
while (NULL != (nm = (orte_namelist_t*)opal_list_remove_first(&coll->targets))) {
OBJ_RELEASE(nm);
}
/* determine how many contributors we need to recv - we know
* that all job objects were found, so we can skip that test
* while counting
*/
np = 0;
for (item = opal_list_get_first(&coll->participants);
item != opal_list_get_end(&coll->participants);
item = opal_list_get_next(item)) {
nm = (orte_namelist_t*)item;
/* get the job object for this participant */
jdata = orte_get_job_data_object(nm->name.jobid);
if (ORTE_VPID_WILDCARD == nm->name.vpid) {
/* all procs from this job are required to participate */
np += jdata->num_procs;
} else {
np++;
}
}
/* are we done? */
if (np != coll->num_global_recvd) {
OPAL_OUTPUT_VERBOSE((5, orte_grpcomm_base_framework.framework_output,
"%s grpcomm:base:daemon_coll: MISSING CONTRIBUTORS: np %s ngr %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_VPID_PRINT(np),
ORTE_VPID_PRINT(coll->num_global_recvd)));
return;
}
/* since we discovered that the collective is complete, we
* need to send it to all the participants
*/
for (item = opal_list_get_first(&coll->participants);
item != opal_list_get_end(&coll->participants);
item = opal_list_get_next(item)) {
nm = (orte_namelist_t*)item;
relay = OBJ_NEW(opal_buffer_t);
opal_dss.pack(relay, &coll->id, 1, ORTE_GRPCOMM_COLL_ID_T);
opal_dss.copy_payload(relay, &coll->buffer);
/* if the vpid is wildcard, then this goes to
* all daemons for relay
*/
if (ORTE_VPID_WILDCARD == nm->name.vpid) {
orte_grpcomm.xcast(nm->name.jobid, relay, ORTE_RML_TAG_COLLECTIVE);
OBJ_RELEASE(relay);
} else {
/* send it to this proc */
if (0 > orte_rml.send_buffer_nb(&nm->name, relay, ORTE_RML_TAG_COLLECTIVE,
orte_rml_send_callback, NULL)) {
ORTE_ERROR_LOG(ORTE_ERR_COMM_FAILURE);
OBJ_RELEASE(relay);
}
}
}
/* remove this collective */
opal_list_remove_item(&orte_grpcomm_base.active_colls, &coll->super);
OBJ_RELEASE(coll);
}
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