SLURM Reference Manual for HP XC System Software

Resource Control
-I (uppercase, --immediate)
exits if requested resources are not available at once (by default, SRUN blocks until
requested resources become available).
-O (uppercase oh, --overcommit)
overcommits CPUs. By default, SRUN never allocates more than one process per
CPU. If you intend to assign multiple processes per CPU, you must invoke the -O
option along with -n and -N (thus -n 16 -N 4 -O together allow 2 processes/CPU on
the 4 allocated 2-CPU nodes). Even with -O, SRUN never allows more than
MAX_TASKS_PER_NODE tasks to run on any single node.
--propagate[=rlimits]
species which of the modiable (soft) resource limits rlimits to propagate to the
compute nodes and hence apply to this job (without rlimits, propagates all resource
limits).
-W sec (uppercase, --wait=sec)
waits sec seconds after the rst task terminates before terminating all remaining tasks
(default for sec is unlimited). Use -W to force an entire job to end fairly quickly if
any one task terminates prematurely.
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