[Pw_forum] Parallel Execution

[Paolo Giannozzi]

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 <bsalmankurt at gmail.com>
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) <
> amzf5 at mail.missouri.edu>:
>
>> 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
>>
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>>
>
>
>
> --
>
> Bahadır SALMANKURT
> PhD student
> Sakarya University, TURKEY
>
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>



-- 
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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