On Fri, Dec 6, 2019 at 11:50 AM Steve Brasier <[email protected]> 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 > > > _______________________________________________ > Quantum ESPRESSO is supported by MaX (www.max-centre.eu/quantum-espresso) > users mailing list [email protected] > https://lists.quantum-espresso.org/mailman/listinfo/users -- 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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