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Add initial support for dynamic allocations. At this time, only Slurm supports the new capability, which will be included in an upcoming release.

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Add hooks for supporting dynamic allocation and deallocation to support application-driven requests and fault recovery operations.

This commit was SVN r27879.
This commit is contained in:
Ralph Castain 2013-01-20 00:33:42 +00:00
parent e4673f3283
commit a591fbf06f
18 changed files with 807 additions and 75 deletions
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3
orte/include/orte/constants.h
View File

@ -126,7 +126,8 @@ enum {
ORTE_ERR_SENSOR_LIMIT_EXCEEDED = (ORTE_ERR_BASE - 43),
ORTE_ERR_JOB_ENTRY_NOT_FOUND = (ORTE_ERR_BASE - 44),
ORTE_ERR_PROC_ENTRY_NOT_FOUND = (ORTE_ERR_BASE - 45),
ORTE_ERR_DATA_VALUE_NOT_FOUND = (ORTE_ERR_BASE - 46)
ORTE_ERR_DATA_VALUE_NOT_FOUND = (ORTE_ERR_BASE - 46),
ORTE_ERR_ALLOCATION_PENDING = (ORTE_ERR_BASE - 47)
};
#define ORTE_ERR_MAX (ORTE_ERR_BASE - 100)

3
orte/mca/errmgr/default_hnp/errmgr_default_hnp.c
View File

@ -160,7 +160,8 @@ static void job_errors(int fd, short args, void *cbdata)
*/
orte_abnormal_term_ordered = true;
}
if (ORTE_JOB_STATE_NEVER_LAUNCHED == jobstate) {
if (ORTE_JOB_STATE_NEVER_LAUNCHED == jobstate ||
ORTE_JOB_STATE_ALLOC_FAILED == jobstate) {
orte_never_launched = true;
jdata->num_terminated = jdata->num_procs;
ORTE_ACTIVATE_JOB_STATE(caddy->jdata, ORTE_JOB_STATE_TERMINATED);

2
orte/mca/ras/alps/ras_alps_module.c
View File

@ -76,7 +76,9 @@ static const orte_ras_alps_sysconfig_t sysconfigs[] = {
/* /// Global Variables /// */
orte_ras_base_module_t orte_ras_alps_module = {
NULL,
orte_ras_alps_allocate,
NULL,
orte_ras_alps_finalize
};

26
orte/mca/ras/base/ras_base_allocate.c
View File

@ -142,6 +142,12 @@ void orte_ras_base_allocate(int fd, short args, void *cbdata)
if (NULL != orte_ras_base.active_module) {
/* read the allocation */
if (ORTE_SUCCESS != (rc = orte_ras_base.active_module->allocate(jdata, &nodes))) {
if (ORTE_ERR_ALLOCATION_PENDING == rc) {
/* an allocation request is underway, so just do nothing */
OBJ_DESTRUCT(&nodes);
OBJ_RELEASE(caddy);
return;
}
if (ORTE_ERR_SYSTEM_WILL_BOOTSTRAP == rc) {
/* this module indicates that nodes will be discovered
* on a bootstrap basis, so all we do here is add our
@ -149,6 +155,26 @@ void orte_ras_base_allocate(int fd, short args, void *cbdata)
*/
goto addlocal;
}
if (ORTE_ERR_TAKE_NEXT_OPTION == rc) {
/* we have an active module, but it is unable to
* allocate anything for this job - this indicates
* that it isn't a fatal error, but could be if
* an allocation is required
*/
if (orte_allocation_required) {
/* an allocation is required, so this is fatal */
OBJ_DESTRUCT(&nodes);
orte_show_help("help-ras-base.txt", "ras-base:no-allocation", true);
ORTE_TERMINATE(ORTE_ERROR_DEFAULT_EXIT_CODE);
OBJ_RELEASE(caddy);
return;
} else {
/* an allocation is not required, so we can just
* run on the local node - go add it
*/
goto addlocal;
}
}
ORTE_ERROR_LOG(rc);
OBJ_DESTRUCT(&nodes);
ORTE_TERMINATE(ORTE_ERROR_DEFAULT_EXIT_CODE);

3
orte/mca/ras/base/ras_base_select.c
View File

@ -52,6 +52,9 @@ int orte_ras_base_select(void)
/* Save the winner */
/* No component saved */
orte_ras_base.active_module = best_module;
if (NULL != orte_ras_base.active_module->init) {
return orte_ras_base.active_module->init();
}
return ORTE_SUCCESS;
}

2
orte/mca/ras/ccp/ras_ccp_module.c
View File

@ -51,7 +51,9 @@ void ras_get_cluster_message(ICluster* pCluster);
* Local variables
*/
orte_ras_base_module_t orte_ras_ccp_module = {
NULL,
orte_ras_ccp_allocate,
NULL,
orte_ras_ccp_finalize
};

2
orte/mca/ras/gridengine/ras_gridengine_module.c
View File

@ -47,7 +47,9 @@ static int get_slot_count(char* node_name, int* slot_cnt);
* Global variable
*/
orte_ras_base_module_t orte_ras_gridengine_module = {
NULL,
orte_ras_gridengine_allocate,
NULL,
orte_ras_gridengine_finalize
};

2
orte/mca/ras/loadleveler/ras_loadleveler_module.c
View File

@ -50,7 +50,9 @@ static int ll_getline(FILE *fp, char *input);
* Global variable
*/
orte_ras_base_module_t orte_ras_loadleveler_module = {
NULL,
orte_ras_loadleveler_allocate,
NULL,
orte_ras_loadleveler_finalize
};

2
orte/mca/ras/lsf/ras_lsf_module.c
View File

@ -46,7 +46,9 @@ static int finalize(void);
* Global variable
*/
orte_ras_base_module_t orte_ras_lsf_module = {
NULL,
allocate,
NULL,
finalize
};

14
orte/mca/ras/ras.h
View File

@ -73,12 +73,19 @@ ORTE_DECLSPEC extern opal_event_t orte_allocate_event;
* but are defined here by convention
*/
/* init the module */
typedef int (*orte_ras_base_module_init_fn_t)(void);
/**
* Allocate resources to a job.
*/
typedef int (*orte_ras_base_module_allocate_fn_t)(orte_job_t *jdata,
opal_list_t *nodes);
/* deallocate resources */
typedef void (*orte_ras_base_module_dealloc_fn_t)(orte_job_t *jdata,
orte_app_context_t *app);
/**
* Cleanup module resources.
*/
@ -88,10 +95,13 @@ typedef int (*orte_ras_base_module_finalize_fn_t)(void);
* ras module
*/
struct orte_ras_base_module_2_0_0_t {
/** init */
orte_ras_base_module_init_fn_t init;
/** Allocation function pointer */
orte_ras_base_module_allocate_fn_t allocate;
orte_ras_base_module_allocate_fn_t allocate;
orte_ras_base_module_dealloc_fn_t deallocate;
/** Finalization function pointer */
orte_ras_base_module_finalize_fn_t finalize;
orte_ras_base_module_finalize_fn_t finalize;
};
/** Convenience typedef */
typedef struct orte_ras_base_module_2_0_0_t orte_ras_base_module_2_0_0_t;

2
orte/mca/ras/simulator/ras_sim_module.c
View File

@ -36,7 +36,9 @@ static int finalize(void);
* Global variable
*/
orte_ras_base_module_t orte_ras_sim_module = {
NULL,
allocate,
NULL,
finalize
};

34
orte/mca/ras/slurm/help-ras-slurm.txt
View File

@ -42,3 +42,37 @@ However, an error was encountered when trying to parse the following variable:
%s
#This is a fatal error.
[slurm-dyn-alloc-timeout]
We attempted to obtain a dynamic allocation from Slurm, but
contact with the Slurm control daemon timed out. Please check
that the Slurm dynamic allocation plug-in is properly operating.
#
[slurm-dyn-alloc-failed]
Allocation request: %s
#
[dyn-alloc-no-config]
Dynamic allocation was enabled, but no Slurm configuration
file was given. Please provide the required configuration file.
#
[host-not-resolved]
The Slurm control host could not be resolved.
Host: %s
Please check the Slurm configuration and try again.
#
[connection-failed]
Connection to the Slurm controller failed:
Host: %s
Port: %d
Please check the Slurm configuration and try again.
#
[config-file-not-found]
The Slurm configuration file was not found.
File: %s
Please check the filename and path and try again.

12
orte/mca/ras/slurm/ras_slurm.h
View File

@ -9,6 +9,8 @@
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2012-2013 Los Alamos National Security, LLC.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
@ -29,7 +31,15 @@
BEGIN_C_DECLS
ORTE_DECLSPEC extern orte_ras_base_component_t mca_ras_slurm_component;
typedef struct {
orte_ras_base_component_t super;
int timeout;
bool dyn_alloc_enabled;
char *config_file;
bool rolling_alloc;
} orte_ras_slurm_component_t;
ORTE_DECLSPEC extern orte_ras_slurm_component_t mca_ras_slurm_component;
ORTE_DECLSPEC extern orte_ras_base_module_t orte_ras_slurm_module;
END_C_DECLS

114
orte/mca/ras/slurm/ras_slurm_component.c
View File

@ -9,6 +9,8 @@
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2012-2013 Los Alamos National Security, LLC.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
@ -21,82 +23,106 @@
#include "opal/mca/base/base.h"
#include "opal/mca/base/mca_base_param.h"
#include "opal/util/net.h"
#include "opal/opal_socket_errno.h"
#include "orte/util/name_fns.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/runtime/orte_globals.h"
#include "orte/mca/ras/base/ras_private.h"
#include "ras_slurm.h"
/*
* Local variables
*/
static int param_priority;
/*
* Local functions
*/
static int ras_slurm_open(void);
static int ras_slurm_close(void);
static int orte_ras_slurm_component_query(mca_base_module_t **module, int *priority);
orte_ras_base_component_t mca_ras_slurm_component = {
/* First, the mca_base_component_t struct containing meta
information about the component itself */
orte_ras_slurm_component_t mca_ras_slurm_component = {
{
/* First, the mca_base_component_t struct containing meta
information about the component itself */
{
ORTE_RAS_BASE_VERSION_2_0_0,
{
ORTE_RAS_BASE_VERSION_2_0_0,
/* Component name and version */
"slurm",
ORTE_MAJOR_VERSION,
ORTE_MINOR_VERSION,
ORTE_RELEASE_VERSION,
/* Component name and version */
"slurm",
ORTE_MAJOR_VERSION,
ORTE_MINOR_VERSION,
ORTE_RELEASE_VERSION,
/* Component open and close functions */
ras_slurm_open,
NULL,
orte_ras_slurm_component_query
},
{
/* The component is checkpoint ready */
MCA_BASE_METADATA_PARAM_CHECKPOINT
/* Component open and close functions */
ras_slurm_open,
ras_slurm_close,
orte_ras_slurm_component_query
},
{
/* The component is checkpoint ready */
MCA_BASE_METADATA_PARAM_CHECKPOINT
}
}
};
static int ras_slurm_open(void)
{
param_priority =
mca_base_param_reg_int(&mca_ras_slurm_component.base_version,
"priority",
"Priority of the slurm ras component",
false, false, 75, NULL);
int tmp;
mca_base_param_reg_int(&mca_ras_slurm_component.super.base_version,
"dyn_allocate_timeout",
"Number of seconds to wait for Slurm dynamic allocation",
false, false, 30, &mca_ras_slurm_component.timeout);
mca_base_param_reg_int(&mca_ras_slurm_component.super.base_version,
"enable_dyn_alloc",
"Whether or not dynamic allocations are enabled",
false, false, (int)false, &tmp);
mca_ras_slurm_component.dyn_alloc_enabled = OPAL_INT_TO_BOOL(tmp);
mca_base_param_reg_string(&mca_ras_slurm_component.super.base_version,
"config_file",
"Path to Slurm configuration file",
false, false, NULL, &mca_ras_slurm_component.config_file);
mca_base_param_reg_int(&mca_ras_slurm_component.super.base_version,
"enable_rolling_alloc",
"Enable partial dynamic allocations",
false, false, (int)false, &tmp);
mca_ras_slurm_component.rolling_alloc = OPAL_INT_TO_BOOL(tmp);
return ORTE_SUCCESS;
}
static int ras_slurm_close(void)
{
if (NULL != mca_ras_slurm_component.config_file) {
free(mca_ras_slurm_component.config_file);
}
return ORTE_SUCCESS;
}
static int orte_ras_slurm_component_query(mca_base_module_t **module, int *priority)
{
/* Are we running under a SLURM job? */
if (NULL != getenv("SLURM_JOBID")) {
mca_base_param_lookup_int(param_priority, priority);
OPAL_OUTPUT_VERBOSE((2, orte_ras_base.ras_output,
"%s ras:slurm: available for selection",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
*module = (mca_base_module_t *) &orte_ras_slurm_module;
return ORTE_SUCCESS;
}
/* Sadly, no */
/* if I built, then slurm support is available. If
* I am not in a Slurm allocation, and dynamic alloc
* is not enabled, then I'll deal with that by returning
* an appropriate status code upon allocation
*/
OPAL_OUTPUT_VERBOSE((2, orte_ras_base.ras_output,
"%s ras:slurm: NOT available for selection",
"%s ras:slurm: available for selection",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
*module = NULL;
return ORTE_ERROR;
/* since only one RM can exist on a cluster, just set
* my priority to something - the other components won't
* be responding anyway
*/
*priority = 50;
*module = (mca_base_module_t *) &orte_ras_slurm_module;
return ORTE_SUCCESS;
}

651
orte/mca/ras/slurm/ras_slurm_module.c
View File

@ -9,7 +9,7 @@
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2011 Los Alamos National Security, LLC. All rights
* Copyright (c) 2011-2012 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
@ -24,39 +24,195 @@
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/socket.h>
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#include <fcntl.h>
#include <stdlib.h>
#include "opal/util/argv.h"
#include "opal/util/net.h"
#include "opal/util/output.h"
#include "opal/opal_socket_errno.h"
#include "orte/util/show_help.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/rmaps/base/base.h"
#include "orte/mca/state/state.h"
#include "orte/util/name_fns.h"
#include "orte/runtime/orte_globals.h"
#include "orte/mca/ras/base/ras_private.h"
#include "ras_slurm.h"
#define ORTE_SLURM_DYN_MAX_SIZE 256
/*
* Local functions
* API functions
*/
static int init(void);
static int orte_ras_slurm_allocate(orte_job_t *jdata, opal_list_t *nodes);
static void deallocate(orte_job_t *jdata,
orte_app_context_t *app);
static int orte_ras_slurm_finalize(void);
/*
* RAS slurm module
*/
orte_ras_base_module_t orte_ras_slurm_module = {
init,
orte_ras_slurm_allocate,
deallocate,
orte_ras_slurm_finalize
};
/* Local functions */
static int orte_ras_slurm_discover(char *regexp, char* tasks_per_node,
opal_list_t *nodelist);
static int orte_ras_slurm_parse_ranges(char *base, char *ranges, char ***nodelist);
static int orte_ras_slurm_parse_range(char *base, char *range, char ***nodelist);
static int dyn_allocate(orte_job_t *jdata);
static char* get_node_list(orte_app_context_t *app);
static int parse_alloc_msg(char *msg, int *idx, int *sjob,
char **nodelist, char **tpn);
static void recv_data(int fd, short args, void *cbdata);
static void timeout(int fd, short args, void *cbdata);
static int read_ip_port(char *filename, char **ip, uint16_t *port);
/*
* Global variable
*/
orte_ras_base_module_t orte_ras_slurm_module = {
orte_ras_slurm_allocate,
orte_ras_slurm_finalize
};
/* define structs for tracking dynamic allocations */
typedef struct {
opal_object_t super;
int sjob;
} local_apptracker_t;
OBJ_CLASS_INSTANCE(local_apptracker_t,
opal_object_t,
NULL, NULL);
typedef struct {
opal_list_item_t super;
char *cmd;
opal_event_t timeout_ev;
orte_jobid_t jobid;
opal_pointer_array_t apps;
int napps;
} local_jobtracker_t;
static void jtrk_cons(local_jobtracker_t *ptr)
{
ptr->cmd = NULL;
OBJ_CONSTRUCT(&ptr->apps, opal_pointer_array_t);
opal_pointer_array_init(&ptr->apps, 1, INT_MAX, 1);
ptr->napps = 0;
}
static void jtrk_des(local_jobtracker_t *ptr)
{
int i;
local_apptracker_t *ap;
if (NULL != ptr->cmd) {
free(ptr->cmd);
}
for (i=0; i < ptr->apps.size; i++) {
if (NULL != (ap = (local_apptracker_t*)opal_pointer_array_get_item(&ptr->apps, i))) {
OBJ_RELEASE(ap);
}
}
OBJ_DESTRUCT(&ptr->apps);
}
OBJ_CLASS_INSTANCE(local_jobtracker_t,
opal_list_item_t,
jtrk_cons, jtrk_des);
/* local vars */
static int socket_fd;
static opal_list_t jobs;
static opal_event_t recv_ev;
/* init the module */
static int init(void)
{
char *slurm_host;
uint16_t port;
struct sockaddr_in address;
int flags;
struct hostent *h;
if (mca_ras_slurm_component.dyn_alloc_enabled) {
if (NULL == mca_ras_slurm_component.config_file) {
orte_show_help("help-ras-slurm.txt", "dyn-alloc-no-config", true);
return ORTE_ERR_SILENT;
}
/* setup the socket */
if (ORTE_SUCCESS != read_ip_port(mca_ras_slurm_component.config_file,
&slurm_host, &port)) {
return ORTE_ERR_SILENT;
}
OPAL_OUTPUT_VERBOSE((2, orte_ras_base.ras_output,
"ras:slurm got [ ip = %s, port = %u ] from %s\n",
slurm_host, port, mca_ras_slurm_component.config_file));
/* obtain a socket for our use */
if ((socket_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
/* connect to the Slurm dynamic allocation port */
bzero(&address, sizeof(address));
address.sin_family = AF_INET;
if (!opal_net_isaddr(slurm_host)) {
/* if the ControlMachine was not specified as an IP address,
* we need to resolve it here
*/
if (NULL == (h = gethostbyname(slurm_host))) {
/* could not resolve it */
orte_show_help("help-ras-slurm.txt", "host-not-resolved",
true, slurm_host);
free(slurm_host);
return ORTE_ERR_SILENT;
}
free(slurm_host);
slurm_host = strdup(inet_ntoa(*(struct in_addr*)h->h_addr_list[0]));
}
address.sin_addr.s_addr = inet_addr(slurm_host);
address.sin_port = htons(port);
if (connect(socket_fd, (struct sockaddr*)&address, sizeof(address)) < 0) {
orte_show_help("help-ras-slurm.txt", "connection-failed",
true, slurm_host, (int)port);
return ORTE_ERR_SILENT;
}
/* set socket up to be non-blocking */
if ((flags = fcntl(socket_fd, F_GETFL, 0)) < 0) {
opal_output(0, "ras:slurm:dyn: fcntl(F_GETFL) failed: %s (%d)",
strerror(opal_socket_errno), opal_socket_errno);
return ORTE_ERROR;
} else {
flags |= O_NONBLOCK;
if (fcntl(socket_fd, F_SETFL, flags) < 0) {
opal_output(0, "ras:slurm:dyn: fcntl(F_SETFL) failed: %s (%d)",
strerror(opal_socket_errno), opal_socket_errno);
return ORTE_ERROR;
}
}
/* setup to recv data */
opal_event_set(orte_event_base, &recv_ev, socket_fd,
OPAL_EV_READ, recv_data, NULL);
opal_event_add(&recv_ev, 0);
/* initialize the list of jobs for tracking dynamic allocations */
OBJ_CONSTRUCT(&jobs, opal_list_t);
}
return ORTE_SUCCESS;
}
/**
* Discover available (pre-allocated) nodes. Allocate the
@ -68,20 +224,41 @@ static int orte_ras_slurm_allocate(orte_job_t *jdata, opal_list_t *nodes)
int ret, cpus_per_task;
char *slurm_node_str, *regexp;
char *tasks_per_node, *node_tasks;
char * tmp;
char *tmp;
char *slurm_jobid;
slurm_jobid = getenv("SLURM_JOBID");
/* don't need to check this for NULL as we wouldn't
* have been selected if it wasn't already found
*
* save that value in the global job ident string for
* later use in any error reporting
*/
orte_job_ident = strdup(slurm_jobid);
if (NULL == (slurm_jobid = getenv("SLURM_JOBID"))) {
/* we are not in a slurm allocation - see if dyn alloc
* is enabled
*/
if (!mca_ras_slurm_component.dyn_alloc_enabled) {
/* nope - nothing we can do */
opal_output_verbose(2, orte_ras_base.ras_output,
"%s ras:slurm: no prior allocation and dynamic alloc disabled",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
return ORTE_ERR_TAKE_NEXT_OPTION;
}
} else {
/* save this value in the global job ident string for
* later use in any error reporting
*/
orte_job_ident = strdup(slurm_jobid);
}
slurm_node_str = getenv("SLURM_NODELIST");
if (NULL == slurm_node_str) {
/* see if dynamic allocation is enabled */
if (mca_ras_slurm_component.dyn_alloc_enabled) {
/* attempt to get the allocation - the function
* dyn_allocate will return as ORTE_ERR_ALLOCATION_PENDING
* if it succeeds in sending the allocation request
*/
ret = dyn_allocate(jdata);
/* return to the above layer in ras/base/ras_base_allocate.c
* to wait for event (libevent) happening
*/
return ret;
}
orte_show_help("help-ras-slurm.txt", "slurm-env-var-not-found", 1,
"SLURM_NODELIST");
return ORTE_ERR_NOT_FOUND;
@ -146,15 +323,26 @@ static int orte_ras_slurm_allocate(orte_job_t *jdata, opal_list_t *nodes)
return ret;
}
/*
* There's really nothing to do here
*/
static void deallocate(orte_job_t *jdata,
orte_app_context_t *app)
{
}
static int orte_ras_slurm_finalize(void)
{
OPAL_OUTPUT_VERBOSE((1, orte_ras_base.ras_output,
"%s ras:slurm:finalize: success (nothing to do)",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
opal_list_item_t *item;
if (mca_ras_slurm_component.dyn_alloc_enabled) {
/* delete the recv event */
opal_event_del(&recv_ev);
while (NULL != (item = opal_list_remove_first(&jobs))) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&jobs);
/* close the socket */
shutdown(socket_fd, 2);
close(socket_fd);
}
return ORTE_SUCCESS;
}
@ -531,3 +719,416 @@ static int orte_ras_slurm_parse_range(char *base, char *range, char ***names)
return ORTE_SUCCESS;
}
static void timeout(int fd, short args, void *cbdata)
{
local_jobtracker_t *jtrk = (local_jobtracker_t*)cbdata;
orte_job_t *jdata;
orte_show_help("help-ras-slurm.txt", "slurm-dyn-alloc-timeout", true);
opal_output_verbose(2, orte_ras_base.ras_output,
"%s Timed out on dynamic allocation",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
/* indicate that we failed to receive an allocation */
jdata = orte_get_job_data_object(jtrk->jobid);
ORTE_ACTIVATE_JOB_STATE(jdata, ORTE_JOB_STATE_ALLOC_FAILED);
}
static void recv_data(int fd, short args, void *cbdata)
{
bool found;
int i, rc;
orte_node_t *nd, *nd2;
opal_list_t nds, ndtmp;
opal_list_item_t *item, *itm;
char recv_msg[8192];
int nbytes, idx, sjob;
char **alloc, *nodelist, *tpn;
local_jobtracker_t *ptr, *jtrk;
local_apptracker_t *aptrk;
orte_app_context_t *app;
orte_jobid_t jobid;
orte_job_t *jdata;
opal_output_verbose(2, orte_ras_base.ras_output,
"%s ras:slurm: dynamic allocation - data recvd",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
/* read the data from the socket and put it in the
* nodes field of op
*/
nbytes = read(fd, recv_msg, 8192);
opal_output_verbose(2, orte_ras_base.ras_output,
"%s ras:slurm: dynamic allocation msg: %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), recv_msg);
/* check if we got something */
if (0 == nbytes || 0 == strlen(recv_msg) || strstr(recv_msg, "failure") != NULL) {
/* show an error here - basically, a "nothing was available"
* message
*/
orte_show_help("help-ras-slurm.txt", "slurm-dyn-alloc-failed", true,
(NULL == recv_msg) ? "NO MSG" : recv_msg);
ORTE_ACTIVATE_JOB_STATE(NULL, ORTE_JOB_STATE_ALLOC_FAILED);
return;
}
/* break the message into its component parts, separated by colons */
alloc = opal_argv_split(recv_msg, ':');
/* the first section contains the ORTE jobid for this allocation */
tpn = strchr(alloc[0], '=');
orte_util_convert_string_to_jobid(&jobid, tpn+1);
/* get the corresponding job object */
jdata = orte_get_job_data_object(jobid);
/* find the associated tracking object */
for (item = opal_list_get_first(&jobs);
item != opal_list_get_end(&jobs);
item = opal_list_get_next(item)) {
ptr = (local_jobtracker_t*)item;
if (ptr->jobid == jobid) {
jtrk = ptr;
break;
}
}
if (NULL == jtrk) {
orte_show_help("help-ras-slurm.txt", "slurm-dyn-alloc-failed", true, "NO JOB TRACKER");
ORTE_ACTIVATE_JOB_STATE(NULL, ORTE_JOB_STATE_ALLOC_FAILED);
return;
}
/* stop the timeout event */
opal_event_del(&jtrk->timeout_ev);
/* cycle across all the remaining parts - each is the allocation for
* an app in this job
*/
OBJ_CONSTRUCT(&nds, opal_list_t);
OBJ_CONSTRUCT(&ndtmp, opal_list_t);
for (i=1; NULL != alloc[i]; i++) {
if (ORTE_SUCCESS != parse_alloc_msg(alloc[i], &idx, &sjob, &nodelist, &tpn)) {
orte_show_help("help-ras-slurm.txt", "slurm-dyn-alloc-failed", true, jtrk->cmd);
ORTE_ACTIVATE_JOB_STATE(jdata, ORTE_JOB_STATE_ALLOC_FAILED);
return;
}
if (idx < 0 || NULL == (app = (orte_app_context_t*)opal_pointer_array_get_item(jdata->apps, idx))) {
orte_show_help("help-ras-slurm.txt", "slurm-dyn-alloc-failed", true, jtrk->cmd);
ORTE_ACTIVATE_JOB_STATE(jdata, ORTE_JOB_STATE_ALLOC_FAILED);
return;
}
/* track the Slurm jobid */
if (NULL == (aptrk = (local_apptracker_t*)opal_pointer_array_get_item(&jtrk->apps, idx))) {
aptrk = OBJ_NEW(local_apptracker_t);
opal_pointer_array_set_item(&jtrk->apps, idx, aptrk);
}
aptrk->sjob = sjob;
/* release the current dash_host as that contained the *desired* allocation */
opal_argv_free(app->dash_host);
app->dash_host = NULL;
/* since the nodelist/tpn may contain regular expressions, parse them */
if (ORTE_SUCCESS != (rc = orte_ras_slurm_discover(nodelist, tpn, &ndtmp))) {
ORTE_ERROR_LOG(rc);
ORTE_ACTIVATE_JOB_STATE(jdata, ORTE_JOB_STATE_ALLOC_FAILED);
return;
}
/* transfer the discovered nodes to our node list, and construct
* the new dash_host entry to match what was allocated
*/
while (NULL != (item = opal_list_remove_first(&ndtmp))) {
nd = (orte_node_t*)item;
opal_argv_append_nosize(&app->dash_host, nd->name);
/* check for duplicates */
found = false;
for (itm = opal_list_get_first(&nds);
itm != opal_list_get_end(&nds);
itm = opal_list_get_next(itm)) {
nd2 = (orte_node_t*)itm;
if (0 == strcmp(nd->name, nd2->name)) {
found = true;
nd2->slots += nd->slots;
OBJ_RELEASE(item);
break;
}
}
if (!found) {
/* append the new node to our list */
opal_list_append(&nds, item);
}
}
/* cleanup */
free(nodelist);
free(tpn);
}
/* cleanup */
opal_argv_free(alloc);
OBJ_DESTRUCT(&ndtmp);
if (opal_list_is_empty(&nds)) {
/* if we get here, then we were able to contact slurm,
* which means we are in an actively managed cluster.
* However, slurm indicated that nothing is currently
* available that meets our requirements. This is a fatal
* situation - we do NOT have the option of running on
* user-specified hosts as the cluster is managed.
*/
OBJ_DESTRUCT(&nds);
orte_show_help("help-ras-base.txt", "ras-base:no-allocation", true);
ORTE_TERMINATE(ORTE_ERROR_DEFAULT_EXIT_CODE);
}
/* store the found nodes */
if (ORTE_SUCCESS != (rc = orte_ras_base_node_insert(&nds, jdata))) {
ORTE_ERROR_LOG(rc);
OBJ_DESTRUCT(&nds);
ORTE_TERMINATE(ORTE_ERROR_DEFAULT_EXIT_CODE);
return;
}
OBJ_DESTRUCT(&nds);
/* default to no-oversubscribe-allowed for managed systems */
if (!(ORTE_MAPPING_SUBSCRIBE_GIVEN & ORTE_GET_MAPPING_DIRECTIVE(orte_rmaps_base.mapping))) {
ORTE_SET_MAPPING_DIRECTIVE(orte_rmaps_base.mapping, ORTE_MAPPING_NO_OVERSUBSCRIBE);
}
/* flag that the allocation is managed */
orte_managed_allocation = true;
/* move the job along */
ORTE_ACTIVATE_JOB_STATE(jdata, ORTE_JOB_STATE_ALLOCATION_COMPLETE);
/* all done */
return;
}
/* we cannot use the RML to communicate with SLURM as it doesn't
* understand our internal protocol, so we have to do a bare-bones
* exchange based on sockets
*/
static int dyn_allocate(orte_job_t *jdata)
{
char *cmd_str, **cmd=NULL, *tmp, *jstring;
char *node_list;
orte_app_context_t *app;
int i;
struct timeval tv;
local_jobtracker_t *jtrk;
if (NULL == mca_ras_slurm_component.config_file) {
opal_output(0, "Cannot perform dynamic allocation as no Slurm configuration file provided");
return ORTE_ERR_NOT_FOUND;
}
/* track this request */
jtrk = OBJ_NEW(local_jobtracker_t);
jtrk->jobid = jdata->jobid;
opal_list_append(&jobs, &jtrk->super);
/* construct the command - note that the jdata structure contains
* a field for the minimum number of nodes required for the job.
* The node list can be constructed from the union of all the nodes
* contained in the dash_host field of the app_contexts. So you'll
* need to do a little work to build the command. We don't currently
* have a field in the jdata structure for "mandatory" vs "optional"
* allocations, so we'll have to add that someday. Likewise, you may
* want to provide a param to adjust the timeout value
*/
/* construct the cmd string */
opal_argv_append_nosize(&cmd, "allocate");
/* add the jobid */
orte_util_convert_jobid_to_string(&jstring, jdata->jobid);
asprintf(&tmp, "jobid=%s", jstring);
opal_argv_append_nosize(&cmd, tmp);
free(tmp);
free(jstring);
/* if we want the allocation for all apps in one shot,
* then tell slurm
*
* RHC: we don't currently have the ability to handle
* rolling allocations in the rest of the code base
*/
#if 0
if (!mca_ras_slurm_component.rolling_alloc) {
opal_argv_append_nosize(&cmd, "return=all");
}
#else
opal_argv_append_nosize(&cmd, "return=all");
#endif
/* pass the timeout */
asprintf(&tmp, "timeout=%d", mca_ras_slurm_component.timeout);
opal_argv_append_nosize(&cmd, tmp);
free(tmp);
/* for each app, add its allocation request info */
for (i=0; i < jdata->apps->size; i++) {
if (NULL == (app = (orte_app_context_t*)opal_pointer_array_get_item(jdata->apps, i))) {
continue;
}
/* add the app id, preceded by a colon separator */
asprintf(&tmp, ": app=%d", (int)app->idx);
opal_argv_append_nosize(&cmd, tmp);
free(tmp);
/* add the number of process "slots" we need */
asprintf(&tmp, "np=%d", app->num_procs);
opal_argv_append_nosize(&cmd, tmp);
free(tmp);
/* if we were given a minimum number of nodes, pass it along */
if (0 < app->min_number_of_nodes) {
asprintf(&tmp, "N=%ld", app->min_number_of_nodes);
opal_argv_append_nosize(&cmd, tmp);
free(tmp);
}
/* add the list of nodes, if one was given, ensuring
* that each node only appears once
*/
node_list = get_node_list(app);
if (NULL != node_list) {
asprintf(&tmp, "node_list=%s", node_list);
opal_argv_append_nosize(&cmd, tmp);
free(node_list);
free(tmp);
}
/* add the mandatory/optional flag */
if (app->mandatory) {
opal_argv_append_nosize(&cmd, "flag=mandatory");
} else {
opal_argv_append_nosize(&cmd, "flag=optional");
}
}
/* assemble it into the final cmd to be sent */
cmd_str = opal_argv_join(cmd, ' ');
opal_argv_free(cmd);
/* start a timer - if the response to our request doesn't appear
* in the defined time, then we will error out as Slurm isn't
* responding to us
*/
opal_event_evtimer_set(orte_event_base, &jtrk->timeout_ev, timeout, jtrk);
tv.tv_sec = mca_ras_slurm_component.timeout * 2;
tv.tv_usec = 0;
opal_event_evtimer_add(&jtrk->timeout_ev, &tv);
opal_output_verbose(2, orte_ras_base.ras_output,
"%s slurm:dynalloc cmd_str = %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
cmd_str);
if (send(socket_fd, cmd_str, strlen(cmd_str)+1, 0) < 0) {
ORTE_ERROR_LOG(ORTE_ERR_COMM_FAILURE);
}
free(cmd_str);
/* we cannot wait here for a response as we
* are already in an event. So return a value
* that indicates we are waiting for an
* allocation so the base functions know
* that they shouldn't progress the job
*/
return ORTE_ERR_ALLOCATION_PENDING;
}
static int parse_alloc_msg(char *msg, int *idx, int *sjob,
char **nodelist, char **tpn)
{
char *tmp;
char *p_str;
char *pos;
int found=0;
if (msg == NULL || strlen(msg) == 0) {
return ORTE_ERR_BAD_PARAM;
}
tmp = strdup(msg);
p_str = strtok(tmp, " ");
while (p_str) {
if (NULL != strstr(p_str, "slurm_jobid")) {
pos = strchr(p_str, '=');
*sjob = strtol(pos+1, NULL, 10);
found++;
} else if (NULL != strstr(p_str, "allocated_node_list")) {
pos = strchr(p_str, '=');
*nodelist = strdup(pos+1);
found++;
} else if (NULL != strstr(p_str, "tasks_per_node")) {
pos = strchr(p_str, '=');
*tpn = strdup(pos+1);
found++;
} else if (NULL != strstr(p_str, "app")) {
pos = strchr(p_str, '=');
*idx = strtol(pos+1, NULL, 10);
found++;
}
p_str = strtok(NULL, " ");
}
free(tmp);
if (4 != found) {
return ORTE_ERR_NOT_FOUND;
}
return ORTE_SUCCESS;
}
static char* get_node_list(orte_app_context_t *app)
{
int j;
char **total_host = NULL;
char *nodes;
if (NULL == app->dash_host) {
return NULL;
}
for (j=0; NULL != app->dash_host[j]; j++) {
opal_argv_append_unique_nosize(&total_host, app->dash_host[j], false);
}
if (NULL == total_host) {
return NULL;
}
nodes = opal_argv_join(total_host, ',');
opal_argv_free(total_host);
return nodes;
}
static int read_ip_port(char *filename, char **ip, uint16_t *port)
{
FILE *fp;
char line[ORTE_SLURM_DYN_MAX_SIZE];
char *pos;
bool found_port = false;
bool found_ip = false;
if (NULL == (fp = fopen(filename, "r"))) {
orte_show_help("help-ras-slurm.txt", "config-file-not-found", true, filename);
return ORTE_ERR_SILENT;
}
memset(line, 0, ORTE_SLURM_DYN_MAX_SIZE);
while (NULL != fgets(line, ORTE_SLURM_DYN_MAX_SIZE, fp) &&
(!found_ip || !found_port)) {
if (0 == strlen(line)) {
continue;
}
line[strlen(line)-1] = '\0';
if (0 == strncmp(line, "JobSubmitDynAllocPort", strlen("JobSubmitDynAllocPort"))) {
pos = strstr(line, "=") + 1;
*port = strtol(pos, NULL, 10);
found_port = true;
} else if (0 == strncmp(line, "ControlMachine", strlen("ControlMachine"))) {
pos = strstr(line, "=") + 1;
*ip = strdup(pos);
found_ip = true;
}
memset(line, 0, ORTE_SLURM_DYN_MAX_SIZE);
}
fclose(fp);
if (!found_ip) {
opal_output(0, "The IP address or name of the Slurm control machine was not provided");
return ORTE_ERR_NOT_FOUND;
}
if (!found_port) {
opal_output(0, "The IP port of the Slurm dynamic allocation service was not provided");
return ORTE_ERR_NOT_FOUND;
}
return ORTE_SUCCESS;
}

2
orte/mca/ras/tm/ras_tm_module.c
View File

@ -52,7 +52,9 @@ static char *filename;
* Global variable
*/
orte_ras_base_module_t orte_ras_tm_module = {
NULL,
allocate,
NULL,
finalize
};

4
orte/runtime/orte_globals.c
View File

@ -11,7 +11,7 @@
* All rights reserved.
* Copyright (c) 2007-2011 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2009-2010 Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011-2012 Los Alamos National Security, LLC.
* Copyright (c) 2011-2013 Los Alamos National Security, LLC.
* All rights reserved.
* $COPYRIGHT$
*
@ -609,6 +609,8 @@ static void orte_app_context_construct(orte_app_context_t* app_context)
app_context->recovery_defined = false;
app_context->max_restarts = -1000;
app_context->max_procs_per_node = 0;
app_context->mandatory = false;
app_context->min_number_of_nodes = -1; /* no minimum */
}
static void orte_app_context_destructor(orte_app_context_t* app_context)

4
orte/runtime/orte_globals.h
View File

@ -295,6 +295,10 @@ typedef struct {
int32_t max_restarts;
/* maximum number of procs/node for this app */
orte_vpid_t max_procs_per_node;
/* flag if nodes requested in -host are "mandatory" vs "optional" */
bool mandatory;
/* min number of nodes required */
int64_t min_number_of_nodes;
} orte_app_context_t;
ORTE_DECLSPEC OBJ_CLASS_DECLARATION(orte_app_context_t);