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Re: [lammps-users] Assigning MPI jobs to different coprocessor
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Re: [lammps-users] Assigning MPI jobs to different coprocessor


From: Axel Kohlmeyer <akohlmey@...24...>
Date: Wed, 5 Jul 2017 18:18:48 -0400

On Wed, Jul 5, 2017 at 5:45 PM, Xiaoyu Wang <xwang181@...5818...> wrote:
> Dear all,
>
> We have a KNL workstation which has 68 cores. I have submitted one job using 64 cores by using common ” mpiexec -np 64 lmp_exec <./input”.
> But when I submitted the second jobs, it seems that the system assigned 2nd job to the same threads the 1st one are using.
> I have little knowledge about the paralleling, so can any one help me with how to assign the 2nd job into different threads?

this depends on your specific MPI library. you will have to study the
documentation for it.

axel.

> Btw, I have compiled lammps with intel option and is using intel parallel studio.
>
> Thanks in advance!
>
> Andy
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-- 
Dr. Axel Kohlmeyer  akohlmey@...24...  http://goo.gl/1wk0
College of Science & Technology, Temple University, Philadelphia PA, USA
International Centre for Theoretical Physics, Trieste. Italy.