Husen R <hus...@gmail.com> writes:
> Re: [slurm-dev] Re: number of processes in slurm job
>
> Hi,
>
> Thanks for your reply !
>
> I use this sbatch script
>
> #!/bin/bash
> #SBATCH -J mm6kn2_03
> #SBATCH -o 6kn203-%j.out
> #SBATCH -A necis
> #SBATCH -N 3
> #SBATCH -n 16
> #SBATCH --time=05:30:00
>
> mpirun ./mm.o 6000
You need to tell 'mpirun' how many processes to start. If you do not,
probably all cores available will be used. So it looks like you have 6
cores per node and thus 'mpirun' starts 18 processes. You should write
some thing like
mpirun -np ${SLURM_NTASKS} ./mm.o 6000
Cheers,
Loris
> regards,
>
> Husen
>
> On Tue, Jul 12, 2016 at 1:21 PM, Loris Bennett
> <loris.benn...@fu-berlin.de> wrote:
>
> Husen R <hus...@gmail.com> writes:
>
> > number of processes in slurm job
>
>
> >
> > Hi all,
> >
> > I tried to run a job on 3 nodes (N=3) with 16 number of processes
> > (n=16) but slurm automatically changes that n value to 18 (n=18).
> >
> > I also tried to use other combination of n values that are not equally
> > devided by N but Slurm automatically changes those n values to values
> > that are equally devided by N.
> >
> > How to change this behavior ?
> > I need to use a specific value of n for experimental purpose.
> >
> > Thank you in advance.
> >
> > Regards,
> >
> > Husen
>
>
> You need to give more details about what you did. How did you set the
> number of processes?
>
> Cheers,
>
> Loris
>
> --
> Dr. Loris Bennett (Mr.)
> ZEDAT, Freie Universität Berlin Email
> loris.benn...@fu-berlin.de
>
>
>
--
Dr. Loris Bennett (Mr.)
ZEDAT, Freie Universität Berlin Email loris.benn...@fu-berlin.de
