extern int task_cgroup_cpuset_init(slurm_cgroup_conf_t *slurm_cgroup_conf)
{
char release_agent_path[PATH_MAX];
/* initialize cpuinfo internal data */
if (xcpuinfo_init() != XCPUINFO_SUCCESS) {
return SLURM_ERROR;
}
/* initialize user/job/jobstep cgroup relative paths */
user_cgroup_path[0]='\0';
job_cgroup_path[0]='\0';
jobstep_cgroup_path[0]='\0';
/* initialize cpuset cgroup namespace */
release_agent_path[0]='\0';
if (snprintf(release_agent_path,PATH_MAX,"%s/release_cpuset",
slurm_cgroup_conf->cgroup_release_agent) >= PATH_MAX) {
error("task/cgroup: unable to build cpuset release agent path");
goto error;
}
if (xcgroup_ns_create(slurm_cgroup_conf, &cpuset_ns, "/cpuset", "",
"cpuset",release_agent_path) !=
XCGROUP_SUCCESS) {
error("task/cgroup: unable to create cpuset namespace");
goto error;
}
/* check that cpuset cgroup namespace is available */
if (! xcgroup_ns_is_available(&cpuset_ns)) {
if (slurm_cgroup_conf->cgroup_automount) {
if (xcgroup_ns_mount(&cpuset_ns)) {
error("task/cgroup: unable to mount cpuset "
"namespace");
goto clean;
}
info("task/cgroup: cpuset namespace is now mounted");
} else {
error("task/cgroup: cpuset namespace not mounted. "
"aborting");
goto clean;
}
}
return SLURM_SUCCESS;
clean:
xcgroup_ns_destroy(&cpuset_ns);
error:
xcpuinfo_fini();
return SLURM_ERROR;
}
/*
* init() is called when the plugin is loaded, before any other functions
* are called. Put global initialization here.
*/
extern int init (void)
{
/* If running on the slurmctld don't do any of this since it
isn't needed.
*/
if (_run_in_daemon()) {
jag_common_init(0);
/* read cgroup configuration */
if (read_slurm_cgroup_conf(&slurm_cgroup_conf))
return SLURM_ERROR;
/* initialize cpuinfo internal data */
if (xcpuinfo_init() != XCPUINFO_SUCCESS) {
free_slurm_cgroup_conf(&slurm_cgroup_conf);
return SLURM_ERROR;
}
/* enable cpuacct cgroup subsystem */
if (jobacct_gather_cgroup_cpuacct_init(&slurm_cgroup_conf) !=
SLURM_SUCCESS) {
xcpuinfo_fini();
free_slurm_cgroup_conf(&slurm_cgroup_conf);
return SLURM_ERROR;
}
/* enable memory cgroup subsystem */
if (jobacct_gather_cgroup_memory_init(&slurm_cgroup_conf) !=
SLURM_SUCCESS) {
xcpuinfo_fini();
free_slurm_cgroup_conf(&slurm_cgroup_conf);
return SLURM_ERROR;
}
/* FIXME: Enable when kernel support ready.
*
* Enable blkio subsystem.
*/
/* if (jobacct_gather_cgroup_blkio_init(&slurm_cgroup_conf) */
/* != SLURM_SUCCESS) { */
/* xcpuinfo_fini(); */
/* free_slurm_cgroup_conf(&slurm_cgroup_conf); */
/* return SLURM_ERROR; */
/* } */
}
verbose("%s loaded", plugin_name);
return SLURM_SUCCESS;
}
/*
* convert a range into an other one according to
* a modus operandi being 0 or 1 for abstract to machine
* or machine to abstract representation of cores
*/
static int
_ranges_conv(char* lrange,char** prange,int mode)
{
int fstatus;
int i;
uint16_t *amap;
uint16_t *map;
uint16_t *map_out;
/* init internal data if not already done */
if ( xcpuinfo_init() != XCPUINFO_SUCCESS )
return XCPUINFO_ERROR;
if ( mode ) {
/* machine to abstract conversion */
amap = block_map_inv;
}
else {
/* abstract to machine conversion */
amap = block_map;
}
/* allocate map for local work */
map = (uint16_t*) xmalloc(block_map_size*sizeof(uint16_t));
map_out = (uint16_t*) xmalloc(block_map_size*sizeof(uint16_t));
/* extract the input map */
fstatus = _range_to_map(lrange,map,block_map_size,!mode);
if ( fstatus ) {
goto exit;
}
/* do the conversion (see src/slurmd/slurmd/get_mach_stat.c) */
for( i = 0 ; i < block_map_size ; i++) {
if ( map[i] )
map_out[amap[i]]=1;
}
/* build the ouput range */
fstatus = _map_to_range(map_out,block_map_size,prange);
exit:
xfree(map);
xfree(map_out);
return fstatus;
}
/*
* init() is called when the plugin is loaded, before any other functions
* are called. Put global initialization here.
*/
extern int init (void)
{
/* read cgroup configuration */
if (read_slurm_cgroup_conf(&slurm_cgroup_conf))
return SLURM_ERROR;
/* initialize cpuinfo internal data */
if (xcpuinfo_init() != XCPUINFO_SUCCESS) {
free_slurm_cgroup_conf(&slurm_cgroup_conf);
return SLURM_ERROR;
}
/* initialize cgroup internal data */
if (_slurm_cgroup_init() != SLURM_SUCCESS) {
xcpuinfo_fini();
free_slurm_cgroup_conf(&slurm_cgroup_conf);
return SLURM_ERROR;
}
return SLURM_SUCCESS;
}
extern int task_cgroup_devices_init(slurm_cgroup_conf_t *slurm_cgroup_conf)
{
uint16_t cpunum;
/* initialize cpuinfo internal data */
if ( xcpuinfo_init() != XCPUINFO_SUCCESS )
return SLURM_ERROR;
/* initialize user/job/jobstep cgroup relative paths */
user_cgroup_path[0] = '\0';
job_cgroup_path[0] = '\0';
jobstep_cgroup_path[0] = '\0';
/* initialize allowed_devices_filename */
cgroup_allowed_devices_file[0] = '\0';
if ( get_procs(&cpunum) != 0 ) {
error("task/cgroup: unable to get a number of CPU");
goto error;
}
(void) gres_plugin_node_config_load(cpunum, conf->node_name, NULL);
strcpy(cgroup_allowed_devices_file,
slurm_cgroup_conf->allowed_devices_file);
if (xcgroup_ns_create(slurm_cgroup_conf, &devices_ns, "", "devices")
!= XCGROUP_SUCCESS ) {
error("task/cgroup: unable to create devices namespace");
goto error;
}
return SLURM_SUCCESS;
error:
xcgroup_ns_destroy(&devices_ns);
xcpuinfo_fini();
return SLURM_ERROR;
}
