It is often like that, but the exact way of launching a parallel code depends upon the MPI software installed on a specific machine. Usage of "mpisomething pw.x < file" is deprecated, "mpisomething pw.x -i file" (or -in, or -inp) is safer.
Paolo On Tue, Oct 27, 2015 at 8:38 PM, Bahadır salmankurt <[email protected]> wrote: > Dear Amir , > > For MPI, the command is > > *mpirun -np 4 pw.x -inp scf.in <http://scf.in> |tee scf.out * > or > *mpirun -np 4 pw.x <scf.in <http://scf.in>> scf.out* > > Bests > > 2015-10-27 21:28 GMT+02:00 Mofrad, Amir Mehdi (MU-Student) < > [email protected]>: > >> Dear all, >> >> I want to run my scf calculations on 4 processors. Can anyone tell me >> what the appropriate prompt (command) is? >> >> I myself use: >> >> >> *mpiexec -n 4 pw.x <input > output * >> >> But it takes forever and does not stop (it looks as if it's being idle). >> >> >> Thank you in advance. >> >> >> >> >> Amir M. Mofrad >> >> University of Missouri >> >> _______________________________________________ >> Pw_forum mailing list >> [email protected] >> http://pwscf.org/mailman/listinfo/pw_forum >> > > > > -- > > Bahadır SALMANKURT > PhD student > Sakarya University, TURKEY > > _______________________________________________ > Pw_forum mailing list > [email protected] > http://pwscf.org/mailman/listinfo/pw_forum > -- Paolo Giannozzi, Dept. Chemistry&Physics&Environment, Univ. Udine, via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222
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