[QE-users] GRIR443 benchmark - is it running properly?

[Paolo Giannozzi]

On Fri, Dec 6, 2019 at 11:50 AM Steve Brasier <steveb at stackhpc.com> wrote:

srun --mpi=pmix /q-e-qe-6.4.1/bin/pw.x -nimage 4 -in grir443.in
> -disk_io='none'
>

-nimage is not used. Command-line option -disk_io is nonexistent.

there's zero communications between the 4 nodes I'm using. Is that expected
> behaviour for pw.x, or does that suggest something is wrong?
>

I think pw.x ignores option -nimage 4, but if it doesn't, you are running 4
copies of the same run on a single processor. In the header there is a
message saying how many processors the code is running on.

Paolo



> Thanks for any help, or even pointers to GRIR443 tutorials or results.
>
> regards
> Steve Brasier
>
>
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-- 
Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222
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