/*
* schd_get_queue_limits - query queue information from the server.
*
* Returns 0 on success, -1 for "fatal errors", and 1 for a transient
* error (i.e., the queue failed the sanity checks imposed by the
* queue_sanity() function).
*/
int
schd_get_queue_limits(Queue *queue)
{
char *id = "schd_get_queue_limits";
int moved = 0, istrue;
Batch_Status *bs;
AttrList *attr;
static AttrList alist[] =
{
{&alist[1], ATTR_start, "", ""},
{&alist[2], ATTR_enable, "", ""},
{&alist[3], ATTR_count, "", ""},
{&alist[4], ATTR_maxuserrun, "", ""},
{&alist[5], ATTR_rescavail, "", ""},
{&alist[6], ATTR_rescassn, "", ""},
{&alist[7], ATTR_rescdflt, "", ""},
{&alist[8], ATTR_rescmax, "", ""},
{&alist[9], ATTR_rescmin, "", ""},
{&alist[10], ATTR_acluren, "", ""},
{&alist[11], ATTR_acluser, "", ""},
{NULL, ATTR_maxrun, "", ""}
};
size_t mem_default = UNSPECIFIED;
size_t mem_assn = UNSPECIFIED;
size_t mem_max = UNSPECIFIED;
size_t mem_min = UNSPECIFIED;
int cpu_default = UNSPECIFIED;
int cpu_assn = UNSPECIFIED;
int cpu_max = UNSPECIFIED;
int cpu_min = UNSPECIFIED;
int nodes_from_cpu, nodes_from_mem;
queue->running = UNSPECIFIED;
queue->queued = UNSPECIFIED;
queue->maxrun = UNSPECIFIED;
queue->userrun = UNSPECIFIED;
queue->nodes_max = UNSPECIFIED;
queue->nodes_min = UNSPECIFIED;
queue->nodes_default = UNSPECIFIED;
queue->nodes_assn = UNSPECIFIED;
queue->nodes_rsvd = UNSPECIFIED;
queue->wallt_max = UNSPECIFIED;
queue->wallt_min = UNSPECIFIED;
queue->wallt_default = UNSPECIFIED;
queue->flags = 0;
#ifdef NODEMASK
BITFIELD_CLRALL(&queue->queuemask);
BITFIELD_CLRALL(&queue->availmask);
#endif /* NODEMASK */
queue->rsrcs = NULL;
if (queue->jobs)
{
DBPRT(("%s: found jobs on queue '%s'! Freeing them...\n", id,
queue->qname));
schd_free_jobs(queue->jobs);
}
if (queue->useracl)
{
DBPRT(("%s: found user ACL list on queue '%s'! Freeing it...\n", id,
queue->qname));
schd_free_useracl(queue->useracl);
}
queue->jobs = NULL;
queue->useracl = NULL;
/* Ask the server for information about the specified queue. */
if ((bs = pbs_statque(connector, queue->qname, alist, NULL)) == NULL)
{
sprintf(log_buffer, "pbs_statque failed, \"%s\" %d",
queue->qname, pbs_errno);
log_record(PBSEVENT_ERROR, PBS_EVENTCLASS_SERVER, id, log_buffer);
DBPRT(("%s: %s\n", id, log_buffer));
return (-1);
}
/* Process the list of attributes returned by the server. */
for (attr = bs->attribs; attr != NULL; attr = attr->next)
{
/* Is queue started? */
if (!strcmp(attr->name, ATTR_start))
{
if (schd_val2bool(attr->value, &istrue) == 0)
{
if (istrue) /* if true, queue is not stopped. */
queue->flags &= ~QFLAGS_STOPPED;
else
queue->flags |= QFLAGS_STOPPED;
}
else
{
DBPRT(("%s: couldn't parse attr %s value %s to boolean\n", id,
attr->name, attr->value));
}
continue;
}
/* Is queue enabled? */
if (!strcmp(attr->name, ATTR_enable))
{
if (schd_val2bool(attr->value, &istrue) == 0)
{
if (istrue) /* if true, queue is not disabled. */
queue->flags &= ~QFLAGS_DISABLED;
else
queue->flags |= QFLAGS_DISABLED;
}
else
{
DBPRT(("%s: couldn't parse attr %s value %s to boolean\n", id,
attr->name, attr->value));
}
continue;
}
/* How many jobs are queued and running? */
if (!strcmp(attr->name, ATTR_count))
{
queue->queued = schd_how_many(attr->value, SC_QUEUED);
queue->running = schd_how_many(attr->value, SC_RUNNING);
continue;
}
/* Queue-wide maximum number of jobs running. */
if (!strcmp(attr->name, ATTR_maxrun))
{
queue->maxrun = atoi(attr->value);
continue;
}
/* Per-user maximum number of jobs running. */
if (!strcmp(attr->name, ATTR_maxuserrun))
{
queue->userrun = atoi(attr->value);
continue;
}
/* Is there an enabled user access control list on this queue? */
if (!strcmp(attr->name, ATTR_acluren))
{
if (schd_val2bool(attr->value, &istrue) == 0)
{
if (istrue) /* if true, queue has an ACL */
queue->flags |= QFLAGS_USER_ACL;
else
queue->flags &= ~QFLAGS_USER_ACL;
}
else
{
DBPRT(("%s: couldn't parse attr %s value %s to boolean\n", id,
attr->name, attr->value));
}
continue;
}
if (!strcmp(attr->name, ATTR_acluser))
{
if (queue->useracl)
{
DBPRT(("queue %s acluser already set!\n", queue->qname));
schd_free_useracl(queue->useracl);
}
queue->useracl = schd_create_useracl(attr->value);
continue;
}
/* Queue maximum resource usage. */
if (!strcmp(attr->name, ATTR_rescmax))
{
if (!strcmp("mem", attr->resource))
{
mem_max = schd_val2byte(attr->value);
continue;
}
if (!strcmp("ncpus", attr->resource))
{
cpu_max = atoi(attr->value);
continue;
}
if (!strcmp("walltime", attr->resource))
{
queue->wallt_max = schd_val2sec(attr->value);
continue;
}
#ifdef NODEMASK
if (!strcmp("nodemask", attr->resource))
{
if (schd_str2mask(attr->value, &queue->queuemask))
{
(void)sprintf(log_buffer, "couldn't convert nodemask %s",
attr->value);
log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id,
log_buffer);
}
else
queue->flags |= QFLAGS_NODEMASK; /* Valid nodemask. */
}
#endif /* NODEMASK */
continue;
}
/* Queue minimum resource usage. */
if (!strcmp(attr->name, ATTR_rescmin))
{
if (!strcmp("mem", attr->resource))
{
mem_min = schd_val2byte(attr->value);
continue;
}
if (!strcmp("ncpus", attr->resource))
{
cpu_min = atoi(attr->value);
continue;
}
if (!strcmp("walltime", attr->resource))
{
queue->wallt_min = schd_val2sec(attr->value);
continue;
}
continue;
}
/* Queue assigned (in use) resource usage. */
if (!strcmp(attr->name, ATTR_rescassn))
{
if (!strcmp("mem", attr->resource))
{
mem_assn = schd_val2byte(attr->value);
continue;
}
if (!strcmp("ncpus", attr->resource))
{
cpu_assn = atoi(attr->value);
}
continue;
}
if (!strcmp(attr->name, ATTR_rescdflt))
{
if (!strcmp("mem", attr->resource))
{
mem_default = schd_val2byte(attr->value);
continue;
}
if (!strcmp("ncpus", attr->resource))
{
cpu_default = atoi(attr->value);
continue;
}
if (!strcmp("walltime", attr->resource))
queue->wallt_default = schd_val2sec(attr->value);
}
/* Ignore anything else */
}
pbs_statfree(bs);
/*
* Calculate values for queue node limits, given memory and cpu values.
* Note any discrepancies.
*/
nodes_from_cpu = NODES_FROM_CPU(cpu_default);
nodes_from_mem = NODES_FROM_MEM(mem_default);
if (nodes_from_cpu != nodes_from_mem)
{
sprintf(log_buffer,
"%s: Queue '%s' default cpu/mem (%d/%s) convert to %d != %d nodes",
id, queue->qname, cpu_default, schd_byte2val(mem_default),
nodes_from_cpu, nodes_from_mem);
log_record(PBSEVENT_ERROR, PBS_EVENTCLASS_SERVER, id, log_buffer);
DBPRT(("%s: %s\n", id, log_buffer));
}
nodes_from_cpu = NODES_FROM_CPU(cpu_max);
nodes_from_mem = NODES_FROM_MEM(mem_max);
if (nodes_from_cpu != nodes_from_mem)
{
sprintf(log_buffer,
"%s: Queue '%s' maximum cpu/mem (%d/%s) convert to %d != %d nodes",
id, queue->qname, cpu_max, schd_byte2val(mem_max),
nodes_from_cpu, nodes_from_mem);
log_record(PBSEVENT_ERROR, PBS_EVENTCLASS_SERVER, id, log_buffer);
DBPRT(("%s: %s\n", id, log_buffer));
}
nodes_from_cpu = NODES_FROM_CPU(cpu_min);
nodes_from_mem = NODES_FROM_MEM(mem_min);
if (nodes_from_cpu != nodes_from_mem)
{
sprintf(log_buffer,
"%s: Queue '%s' minimum cpu/mem (%d/%s) convert to %d != %d nodes",
id, queue->qname, cpu_min, schd_byte2val(mem_min),
nodes_from_cpu, nodes_from_mem);
log_record(PBSEVENT_ERROR, PBS_EVENTCLASS_SERVER, id, log_buffer);
DBPRT(("%s: %s\n", id, log_buffer));
}
/*
* Note: The assigned cpus and memory need not be exactly the same
* node equivalency.
*/
if ((cpu_default != UNSPECIFIED) && (mem_default != UNSPECIFIED))
queue->nodes_default = NODES_REQD(cpu_default, mem_default);
if ((cpu_max != UNSPECIFIED) && (mem_max != UNSPECIFIED))
queue->nodes_max = NODES_REQD(cpu_max, mem_max);
if ((cpu_min != UNSPECIFIED) && (mem_min != UNSPECIFIED))
queue->nodes_min = NODES_REQD(cpu_min, mem_min);
if ((cpu_assn != UNSPECIFIED) && (mem_assn != UNSPECIFIED))
queue->nodes_assn = NODES_REQD(cpu_assn, mem_assn);
/*
* Move any jobs on this queue from the global list onto the queue's
* list. Keep track of when the longest-running job will end, and set
* the 'empty_by' field to that value. Maintain the ordering as it was
* in "schd_AllJobs".
*/
if (schd_AllJobs)
moved = queue_claim_jobs(queue, &schd_AllJobs);
if (moved < 0)
{
sprintf(log_buffer, "%s: WARNING! Queue '%s' failed to claim jobs.",
id, queue->qname);
log_record(PBSEVENT_ERROR, PBS_EVENTCLASS_SERVER, id, log_buffer);
DBPRT(("%s: %s\n", id, log_buffer));
}
if (queue->nodes_assn == UNSPECIFIED)
queue->nodes_assn = 0;
if (queue->running == UNSPECIFIED)
queue->running = 0;
/*
* Find out if the queue is idle, and if it was not before, set the idle
* time to now. If there are running jobs, the queue is not idle at the
* start of this iteration - set idle_since to 0.
*/
if (queue->running)
{
queue->idle_since = 0;
}
else
{
if (queue->idle_since == 0)
queue->idle_since = schd_TimeNow;
}
/*
* Get the resources for this queue from the resource monitor (if
* available). If the resmom is not accessible, disable the queue.
* If the resources were received okay, compute the available node
* masks from the resources and jobs.
* Don't bother with resources for the special or submit queues.
*/
if ((strcmp(queue->qname, schd_SubmitQueue->queue->qname) != 0) ||
((schd_SpecialQueue != NULL) &&
(!strcmp(queue->qname, schd_SpecialQueue->queue->qname))))
{
queue->rsrcs = schd_get_resources(queue->exechost);
if (queue->rsrcs != NULL)
{
/* Account for this queue's resources. */
queue->rsrcs->nodes_alloc += queue->nodes_assn;
queue->rsrcs->njobs += queue->running;
/*
* If the HPM counters do not appear to be in use on this host,
* check for jobs on the queue that are using hpm. If so, set
* the 'HPM_IN_USE' flag on the resources. This will prevent the
* HPM counters from being released to global mode at the end
* of the scheduling run (c.f. cleanup.c).
* The 'HPM_IN_USE' flag will also be asserted if a job is run
* that uses the HPM counters.
*/
if (schd_MANAGE_HPM &&
!(queue->rsrcs->flags & RSRCS_FLAGS_HPM_IN_USE))
{
if (schd_hpm_job_count(queue->jobs))
queue->rsrcs->flags |= RSRCS_FLAGS_HPM_IN_USE;
}
#ifdef NODEMASK
/* And find the nodemasks for the queue and resources. */
find_nodemasks(queue, queue->rsrcs);
#endif /* NODEMASK */
}
else
{
(void)sprintf(log_buffer,
"Can't get resources for %s@%s - marking unavailable.",
queue->qname, queue->exechost);
log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id, log_buffer);
DBPRT(("%s: %s\n", id, log_buffer));
queue->flags |= QFLAGS_DISABLED;
}
}
#ifdef DEBUG
schd_dump_queue(queue, QUEUE_DUMP_JOBS);
#endif /* DEBUG */
/*
* It would probably be better to wait for the world to stabilize
* than to try to impose some artificial order upon it. Do not do
* the sanity check if the queue is stopped.
*/
if ((queue->flags & QFLAGS_STOPPED) == 0)
{
if (!queue_sanity(queue))
{
sprintf(log_buffer, "WARNING! Queue '%s' failed sanity checks.",
queue->qname);
log_record(PBSEVENT_ERROR, PBS_EVENTCLASS_SERVER, id, log_buffer);
DBPRT(("%s: %s\n", id, log_buffer));
return (1);
}
}
return (0);
}
/*
* This function takes a pointer to a struct batch_status for a job, and
* fills in the appropriate fields of the supplied job struct. It returns
* the number of items that were found.
*/
int
schd_get_jobinfo(Batch_Status *bs, Job *job)
{
char *id = "schd_get_jobinfo";
int changed = 0;
int cpu_req = 0;
size_t mem_req = 0;
char *host;
char *p, *tmp_p, *var_p;
AttrList *attr;
char canon[PBS_MAXHOSTNAME + 1];
int istrue;
memset((void *)job, 0, sizeof(Job));
job->jobid = schd_strdup(bs->name);
if (job->jobid == NULL)
{
log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id,
"schd_strdup(bs->name)");
return (-1);
}
changed ++;
for (attr = bs->attribs; attr != NULL; attr = attr->next)
{
/*
* If this is the 'owner' field, chop it into 'owner' and 'host'
* fields, and copy them into the Job struct.
*/
if (!strcmp(attr->name, ATTR_owner))
{
/* Look for the '@' that separates user and hostname. */
host = strchr(attr->value, '@');
if (host)
{
*host = '\0'; /* Replace '@' with NULL (ends username). */
host ++; /* Move to first character of hostname. */
}
job->owner = schd_strdup(attr->value);
if (job->owner == NULL)
{
log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id,
"schd_strdup(job->owner)");
return (-1);
}
changed ++;
job->host = schd_strdup(host);
if (job->host == NULL)
{
log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id,
"schd_strdup(job->host)");
return (-1);
}
changed ++;
/*
* We don't "own" the attribute strings, so put back the '@'
* character we removed above, in case something else expects
* it to be there.
* Note that 'host' points to the first character of the host-
* name, not the hole one character behind.
*/
if (host)
{
host --; /* Step back one character. */
*host = '@'; /* Replace the '@' that was deleted above. */
}
/* That's all for the owner field. */
continue;
}
/* The group to which to charge the resources for this job. */
if (!strcmp(attr->name, ATTR_egroup))
{
job->group = schd_strdup(attr->value);
if (job->group == NULL)
{
log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id,
"schd_strdup(job->group)");
return (-1);
}
changed ++;
continue;
}
/* The comment currently assigned to this job. */
if (!strcmp(attr->name, ATTR_comment))
{
job->comment = schd_strdup(attr->value);
if (job->comment == NULL)
{
log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id,
"schd_strdup(job->comment)");
return (-1);
}
changed ++;
continue;
}
/* The host on which this job is running. */
if (!strcmp(attr->name, ATTR_exechost))
{
job->exechost = schd_strdup(attr->value);
if (job->exechost == NULL)
{
log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id,
"schd_strdup(job->exechost)");
return (-1);
}
changed ++;
continue;
}
if (!strcmp(attr->name, ATTR_inter))
{
/* Is this job interactive or not? */
if (schd_val2bool(attr->value, &istrue) == 0)
{
if (istrue)
job->flags |= JFLAGS_INTERACTIVE;
else
job->flags &= ~JFLAGS_INTERACTIVE;
changed ++;
}
else
{
DBPRT(("%s: can't parse %s = %s into boolean\n", id,
attr->name, attr->value));
}
continue;
}
if (!strcmp(attr->name, ATTR_state))
{
/* State is one of 'R', 'Q', 'E', etc. */
job->state = attr->value[0];
changed ++;
continue;
}
if (!strcmp(attr->name, ATTR_queue))
{
job->qname = schd_strdup(attr->value);
if (job->qname == NULL)
{
log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id,
"schd_strdup(job->qname)");
return (-1);
}
job->flags |= JFLAGS_QNAME_LOCAL;
changed ++;
continue;
}
if (!strcmp(attr->name, ATTR_v))
{
var_p = schd_strdup(attr->value);
if (var_p == NULL)
{
log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id,
"schd_strdup(Variable_List)");
return (-1);
}
p = NULL;
tmp_p = strstr(var_p, "PBS_O_QUEUE");
if (tmp_p)
{
p = strtok(tmp_p, "=");
p = strtok(NULL, ", ");
}
if (p != NULL)
{
job->oqueue = schd_strdup(p);
}
else
{
/* if the originating queue is unknown, default
* to the locally defined "submit" queue.
*/
job->oqueue = schd_strdup(schd_SubmitQueue->queue->qname);
}
free(var_p);
changed ++;
continue;
}
if (!strcmp(attr->name, ATTR_l))
{
if (!strcmp(attr->resource, "walltime"))
{
job->walltime = schd_val2sec(attr->value);
changed ++;
}
else if (!strcmp(attr->resource, "ncpus"))
{
cpu_req = atoi(attr->value);
job->nodes = MAX(job->nodes, NODES_FROM_CPU(cpu_req));
changed ++;
}
else if (!strcmp(attr->resource, "mem"))
{
mem_req = schd_val2byte(attr->value);
job->nodes = MAX(job->nodes, NODES_FROM_MEM(mem_req));
changed ++;
#ifdef NODEMASK
}
else if (!strcmp(attr->resource, "nodemask"))
{
if (schd_str2mask(attr->value, &job->nodemask))
{
(void)sprintf(log_buffer,
"bad nodemask %s for job %s", attr->value, job->jobid);
log_record(PBSEVENT_SYSTEM, PBS_EVENTCLASS_SERVER, id,
log_buffer);
}
else
changed++; /* Job nodemask was valid. */
#endif /* NODEMASK */
}
if (!strcmp(attr->resource, HPM_ATTRIBUTE))
{
/*
* If the job requests hpm support, set the flag, otherwise
* turn it off.
*/
if (schd_val2bool(attr->value, &istrue) == 0)
{
if (istrue)
job->flags |= JFLAGS_NEEDS_HPM;
else
job->flags &= ~JFLAGS_NEEDS_HPM;
changed ++;
}
else
{
DBPRT(("%s: can't parse %s = %s into boolean\n", id,
attr->name, attr->value));
}
}
/* That's all for requested resources. */
continue;
}
if (!strcmp(attr->name, ATTR_used))
{
if (!strcmp(attr->resource, "walltime"))
{
job->walltime_used = schd_val2sec(attr->value);
changed ++;
}
/* No other interesting cases. */
continue;
}
/* Creation time attribute. */
if (!strcmp(attr->name, ATTR_ctime))
{
/* How long ago was it put in the queue ? */
job->time_queued = schd_TimeNow - atoi(attr->value);
continue;
}
/* Modified time attribute. */
if (!strcmp(attr->name, ATTR_mtime))
{
/* When was the job last modified? */
job->mtime = atoi(attr->value);
continue;
}
#ifdef ATTR_etime
/*
* When was the job last eligible to run? When a user-hold is
* released, this value is updated to the current time. This
* prevents users from gaining higher priority from holding their
* jobs.
*/
if (!strcmp(attr->name, ATTR_etime))
{
job->eligible = schd_TimeNow - atoi(attr->value);
continue;
}
#endif /* ATTR_etime */
}
/*
* If this job is in the "Running" state, compute how many seconds
* remain until it is completed.
*/
if (job->state == 'R')
{
job->time_left = job->walltime - job->walltime_used;
}
/*
* If this job was enqueued since the last time we ran, set the job
* flag to indicate that we have not yet seen this job. This makes it
* a candidate for additional processing. There may be some inaccuracy,
* since the time_t has resolution of 1 second. Attempt to err on the
* side of caution.
*/
if ((job->state == 'Q') && (job->time_queued != UNSPECIFIED))
{
if (job->time_queued <= (schd_TimeNow - schd_TimeLast))
{
job->flags |= JFLAGS_FIRST_SEEN;
}
}
/*
* If the 'etime' attribute wasn't found, set it to the time the job has
* been queued. Most jobs will be eligible to run their entire lifetime.
* The exception is a job that has been held - if it was a user hold,
* the release will reset the etime to the latest value.
* If not eligible time was given, use the job's creation time.
*/
if (!job->eligible)
job->eligible = job->time_queued;
/*
* If the job provided a memory or CPU resource that does not match
* the resources that will be allocated by the assigned nodes (i.e.
* a request for 100mb of memory and 16 CPUs - the job will "get" all
* 4GB of memory anyway), alter the job attributes such that they
* will align with the assigned nodes later.
*/
bump_rsrc_requests(job, cpu_req, mem_req);
return (changed);
}
