Slurm: Submitting to a system with HT (Hyperthreading) Enabled

Check the node setup for HT

• Do this from slurm

[root@hyalite ~]# sinfo -lNe
Mon Feb 16 14:27:22 2015
NODELIST          NODES PARTITION       STATE CPUS    S:C:T MEMORY TMP_DISK WEIGHT FEATURES REASON              
compute[001-028]     28     defq*   allocated   32    2:8:2  64523     2015      1   (null) none                
compute[029-035]      7     defq*        idle   32    2:8:2  64523     2015      1   (null) none                
compute036            1     defq*        idle   32    2:8:2  64522     2015      1   (null) none

• then submit using

#SBATCH --ntasks-per-core=2
#SBATCH --ntasks=32