Provided by: libslurm-dev_15.08.7-1build1_amd64 
NAME
slurm_free_job_alloc_info_response_msg, slurm_free_job_info_msg, slurm_get_end_time, slurm_get_rem_time,
slurm_get_select_jobinfo, slurm_job_cpus_allocated_on_node, slurm_job_cpus_allocated_on_node_id,
slurm_job_cpus_allocated_str_on_node, slurm_job_cpus_allocated_str_on_node_id, slurm_load_jobs,
slurm_load_job_user, slurm_pid2jobid, slurm_print_job_info, slurm_print_job_info_msg - Slurm job
information reporting functions
ISLURM_GET_REM_TIME, ISLURM_GET_REM_TIME2 - Fortran callable extensions
SYNTAX
#include <stdio.h>
#include <time.h>
#include <slurm/slurm.h>
#include <sys/types.h>
void slurm_free_job_alloc_info_response_msg (
job_alloc_info_response_msg_t *job_alloc_info_msg_ptr
);
void slurm_free_job_info_msg (
job_info_msg_t *job_info_msg_ptr
);
int slurm_load_job (
job_info_msg_t **job_info_msg_pptr,
uint32_t job_id,
uint16_t show_flags,
);
int slurm_load_job_user (
job_info_msg_t **job_info_msg_pptr,
uint32_t user_id,
uint16_t show_flags,
);
int slurm_load_jobs (
time_t update_time,
job_info_msg_t **job_info_msg_pptr,
uint16_t show_flags
);
int slurm_notify_job (
uint32_t job_id,
char *message
);
int slurm_pid2jobid (
pid_t job_pid,
uint32_t *job_id_ptr
);
int slurm_get_end_time (
uint32_t jobid,
time_t *end_time_ptr
);
long slurm_get_rem_time (
uint32_t job_id
);
void slurm_print_job_info (
FILE *out_file,
job_info_t *job_ptr,
int one_liner
);
void slurm_print_job_info_msg (
FILE *out_file,
job_info_msg_t *job_info_msg_ptr,
int one_liner
);
int slurm_get_select_jobinfo (
select_jobinfo_t jobinfo,
enum select_data_type data_type,
void *data );
int slurm_job_cpus_allocated_on_node_id (
job_resources_t *job_resrcs_ptr,
int node_id
);
int slurm_job_cpus_allocated_on_node (
job_resources_t *job_resrcs_ptr,
const char *node_name
);
int slurm_job_cpus_allocated_str_on_node_id (
char *cpus,
size_t cpus_len,
job_resources_t *job_resrcs_ptr,
int node_id
);
int slurm_job_cpus_allocated_str_on_node (
char *cpus,
size_t cpus_len,
job_resources_t *job_resrcs_ptr,
const char *node_name
);
FORTRAN EXTENSION
INTEGER*4 JOBID, REM_TIME
REM_TIME = ISLURM_GET_REM_TIME(JOBID)
REM_TIME = ISLURM_GET_REM_TIME2()
ISLURM_GET_REM_TIME2() is equivalent to ISLURM_GET_REM_TIME() except that the JOBID is taken from the
SLURM_JOB_ID environment variable, which is set by Slurm for tasks which it launches. Both functions
return the number of seconds remaining before the job reaches the end of it's allocated time.
ARGUMENTS
cpus Specifies a pointer to allocated memory into which the string representing the list of allocated
CPUs on the node is placed.
cpus_len
The size in bytes of the allocated memory space pointed by cpus.
data_type
Identifies the type of data to retrieve jobinfo. Note that different types of data are associated
with different computer types and different configurations.
data The data value identified with data_type is returned in the location specified by data. If a type
of data is requested that does not exist on a particular computer type or configuration,
slurm_get_select_jobinfo returns an error. See the slurm.h header file for identification of the
data types associated with each value of data_type.
end_time_ptr
Specified a pointer to a storage location into which the expected termination time of a job is
placed.
job_info_msg_pptr
Specifies the double pointer to the structure to be created and filled with the time of the last
job update, a record count, and detailed information about each job. Detailed job information is
written to fixed sized records and includes: ID number, name, user ID, state, assigned or
requested node names, indexes into the node table, etc. In the case of indexes into the node
table, this is an array of integers with pairs of start and end index number into the node
information records and the data is terminated with a value of -1. See slurm.h for full details on
the data structure's contents.
job_id Specifies a slurm job id. If zero, use the SLURM_JOB_ID environment variable to get the jobid.
job_id_ptr
Specifies a pointer to a storage location into which a Slurm job id may be placed.
job_info_msg_ptr
Specifies the pointer to the structure created by slurm_load_job or slurm_load_jobs.
jobinfo
Job-specific information as constructed by Slurm's NodeSelect plugin. This data object is
returned for each job by the slurm_load_job or slurm_load_jobs function.
job_pid
Specifies a process id of some process on the current node.
job_ptr
Specifies a pointer to a single job records from the job_info_msg_ptr data structure.
job_resrcs_ptr
Pointer to a job_resources_t structure previously using the function slurm_load_job with a
show_flags value of SHOW_DETAIL.
node_id
Zero origin ID of a node allocated to a job.
node_name
Name of a node allocated to a job.
one_liner
Print one record per line if non-zero.
out_file
Specifies the file to print data to.
show_flags
Job filtering flags, may be ORed. Information about jobs in partitions that are configured as
hidden and partitions that the user's group is unable to utilize are not reported by default. The
SHOW_ALL flag will cause information about jobs in all partitions to be displayed. The
SHOW_DETAIL flag will cause detailed resource allocation information to be reported (e.g. the
could of CPUs allocated to a job on each node).
update_time
For all of the following informational calls, if update_time is equal to or greater than the last
time changes where made to that information, new information is not returned. Otherwise all the
configuration. job, node, or partition records are returned.
user_id
ID of user we want information for.
DESCRIPTION
slurm_free_resource_allocation_response_msg Free slurm resource allocation response message.
slurm_free_job_info_msg Release the storage generated by the slurm_load_jobs function.
slurm_get_end_time Returns the expected termination time of a specified Slurm job. The time corresponds
to the exhaustion of the job´s or partition´s time limit. NOTE: The data is cached locally and only
retrieved from the Slurm controller once per minute.
slurm_get_rem_time Returns the number of seconds remaining before the expected termination time of a
specified Slurm job id. The time corresponds to the exhaustion of the job´s or partition´s time limit.
NOTE: The data is cached locally and only retrieved from the Slurm controller once per minute.
slurm_job_cpus_allocated_on_node and slurm_job_cpus_allocated_on_node_id return the number of CPUs
allocated to a job on a specific node allocated to a job.
slurm_job_cpus_allocated_str_on_node and slurm_job_cpus_allocated_str_on_node_id return a string
representing the list of CPUs allocated to a job on a specific node allocated to a job.
slurm_load_job Returns a job_info_msg_t that contains an update time, record count, and array of
job_table records for some specific job ID.
slurm_load_jobs Returns a job_info_msg_t that contains an update time, record count, and array of
job_table records for all jobs.
slurm_load_job_yser Returns a job_info_msg_t that contains an update time, record count, and array of
job_table records for all jobs associated with a specific user ID.
slurm_load_job_user issues RPC to get slurm information about all jobs to be run as the specified user.
slurm_notify_job Sends the specified message to standard output of the specified job ID.
slurm_pid2jobid Returns a Slurm job id corresponding to the supplied local process id. This only works
for processes which Slurm spawns and their descendants.
slurm_print_job_info Prints the contents of the data structure describing a single job records from the
data loaded by the slurm_load_node function.
slurm_print_job_info_msg Prints the contents of the data structure describing all job records loaded by
the slurm_load_node function.
RETURN VALUE
For slurm_get_rem_time on success a number of seconds is returned. For all other functions zero is
returned on success. On error, -1 is returned, and Slurm error code is set appropriately.
ERRORS
SLURM_NO_CHANGE_IN_DATA Data has not changed since update_time.
SLURM_PROTOCOL_VERSION_ERROR Protocol version has changed, re-link your code.
ESLURM_INVALID_JOB_ID Request for information about a non-existent job.
SLURM_PROTOCOL_SOCKET_IMPL_TIMEOUT Timeout in communicating with Slurm controller.
INVAL Invalid function argument.
EXAMPLE
#include <stdio.h>
#include <stdlib.h>
#include <slurm/slurm.h>
#include <slurm/slurm_errno.h>
#include <sys/types.h>
int main (int argc, char *argv[])
{
int i;
job_info_msg_t * job_buffer_ptr = NULL;
job_info_t * job_ptr;
uint32_t job_id;
/* get and dump some job information */
if ( slurm_load_jobs ((time_t) NULL,
&job_buffer_ptr, SHOW_ALL) ) {
slurm_perror ("slurm_load_jobs error");
exit (1);
}
/* The easy way to print... */
slurm_print_job_info_msg (stdout, job_buffer_ptr, 0);
/* A harder way.. */
for (i = 0; i < job_buffer_ptr->record_count; i++) {
job_ptr = &job_buffer_ptr->job_array[i];
slurm_print_job_info(stdout, job_ptr, 1);
}
/* The hardest way. */
printf ("Jobs updated at %lx, record count %d\n",
job_buffer_ptr->last_update,
job_buffer_ptr->record_count);
for (i = 0; i < job_buffer_ptr->record_count; i++) {
printf ("JobId=%u UserId=%u\n",
job_buffer_ptr->job_array[i].job_id,
job_buffer_ptr->job_array[i].user_id);
}
if (job_buffer_ptr->record_count >= 1) {
uint16_t nodes;
if (slurm_get_select_jobinfo(
job_buffer_ptr->job_array[0].select_jobinfo,
SELECT_JOBDATA_NODE_CNT,
&nodes) == SLURM_SUCCESS)
printf("JobId=%u Nodes=%u\n",
job_buffer_ptr->job_array[0].job_id,
nodes);
}
slurm_free_job_info_msg (job_buffer_ptr);
if (slurm_pid2jobid (getpid(), &job_id))
slurm_perror ("slurm_load_jobs error");
else
printf ("Slurm job id = %u\n", job_id);
exit (0);
}
NOTES
These functions are included in the libslurm library, which must be linked to your process for use (e.g.
"cc -lslurm myprog.c").
The command field in the job record will be the name of user program to be launched by the srun or sbatch
command. The field is not set when either the salloc command is used or the sbatch command is used with
the --wrap option.
Some data structures contain index values to cross-reference each other. If the show_flags argument is
not set to SHOW_ALL when getting this data, these index values will be invalid.
The slurm_hostlist_ functions can be used to convert Slurm node list expressions into a collection of
individual node names.
COPYING
Copyright (C) 2002-2006 The Regents of the University of California. Copyright (C) 2008-2010 Lawrence
Livermore National Security. Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
CODE-OCEC-09-009. All rights reserved.
This file is part of Slurm, a resource management program. For details, see <http://slurm.schedmd.com/>.
Slurm is free software; you can redistribute it and/or modify it under the terms of the GNU General
Public License as published by the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
Slurm is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
SEE ALSO
scontrol(1), squeue(1), slurm_hostlist_create(3), slurm_hostlist_shift(3), slurm_hostlist_destroy(3),
slurm_allocation_lookup(3), slurm_get_errno(3), slurm_perror(3), slurm_strerror(3)