[slurm-users] cpu limit issue

[Mahmood Naderan]

>Check the Gaussian log file for mention of its using just 8 CPUs-- just
because there are 12 CPUs available doesn't mean the program uses all of
>them.  It will scale-back if 12 isn't a good match to the problem as I
recall.



Well, in the log file, it says

 ******************************************
 %nprocshared=12
 Will use up to   12 processors via shared memory.
 %mem=18GB
 %chk=trimer.chk

Maybe, it scales down to a good match. But I haven't seen that before. That
was why I asked the question.





One more question. Does it matter if the user specify (or not specify)
--account in the sbatch script?

[root at rocks7 ~]# sacctmgr list association format=partition,account,user,
grptres,maxwall
 Partition    Account       User       GrpTRES     MaxWall
---------- ---------- ---------- ------------- -----------
   emerald         z3 noor cpu=12,mem=1+ 30-00:00:00



[noor at rocks7 ~]$ grep nprocshared trimer.gjf
%nprocshared=12
[noor at rocks7 ~]$ cat trimer.sh
#!/bin/bash
#SBATCH --output=trimer.out
#SBATCH --job-name=trimer
#SBATCH --ntasks=12
#SBATCH --mem=18GB
#SBATCH --partition=EMERALD
g09 trimer.gjf







Regards,
Mahmood
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