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/*****************************************************************************\
* test1.90.prog.c - Simple test program for Slurm regression test1.90.
* Reports Slurm task ID, the CPU mask, and memory mask,
* similar functionality to "taskset" command
*****************************************************************************
* Copyright (C) 2006 The Regents of the University of California.
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
* Written by Morris Jette <jette1@llnl.gov>
* CODE-OCEC-09-009. All rights reserved.
*
* This file is part of Slurm, a resource management program.
* For details, see <https://slurm.schedmd.com/>.
* Please also read the included file: DISCLAIMER.
*
* 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.
*
* You should have received a copy of the GNU General Public License along
* with Slurm; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
\*****************************************************************************/
#define _GNU_SOURCE
#include <inttypes.h>
#include <numa.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
/* For RedHat systems, LIBNUMA_API_VERSION is undefined
* For current Ubuntu, LIBNUMA_API_VERSION=2 */
#ifndef LIBNUMA_API_VERSION
# define LIBNUMA_API_VERSION 1
#endif
#if (LIBNUMA_API_VERSION > 1)
# define MY_MASK struct bitmask *
# define MY_TEST numa_bitmask_isbitset
#else
# define MY_MASK nodemask_t
# define MY_TEST nodemask_isset
#endif
static void _load_cpu_mask(MY_MASK *cpu_mask)
{
*cpu_mask = numa_get_run_node_mask();
}
static void _load_mem_mask(MY_MASK *mem_mask)
{
*mem_mask = numa_get_membind();
}
static uint64_t _mask_to_int(MY_MASK *mask)
{
uint64_t i, rc = 0;
for (i = 0; i < NUMA_NUM_NODES; i++) {
#if (LIBNUMA_API_VERSION > 1)
if (MY_TEST(*mask, i))
#else
if (MY_TEST(mask, i))
#endif
rc += (((uint64_t) 1) << i);
}
return rc;
}
int main (int argc, char **argv)
{
char *task_str;
MY_MASK cpu_mask;
MY_MASK mem_mask;
int task_id;
if (numa_available() < 0) {
fprintf(stderr, "ERROR: numa support not available\n");
exit(0);
}
/* On POE systems, MP_CHILD is equivalent to SLURM_PROCID */
if (((task_str = getenv("SLURM_PROCID")) == NULL) &&
((task_str = getenv("MP_CHILD")) == NULL)) {
fprintf(stderr, "ERROR: getenv(SLURM_PROCID) failed\n");
exit(1);
}
task_id = atoi(task_str);
_load_cpu_mask(&cpu_mask);
_load_mem_mask(&mem_mask);
printf("TASK_ID:%d,CPU_MASK:%"PRIu64",MEM_MASK:%lu\n",
task_id, _mask_to_int(&cpu_mask), _mask_to_int(&mem_mask));
exit(0);
}
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