[Pw_forum] << running QE in parallel >>

[Duy Le]

could you pls type directly:
mpirun (or mpiexec) -np 4 pw.x < input.in > output.out

Best,

On Fri, Aug 28, 2009 at 11:26 AM, Lorenzo Paulatto <paulatto at sissa.it>wrote:

> In data 28 agosto 2009 alle ore 17:11:59, I. Camps <i_camps at yahoo.com.br>
> ha scritto:
> > ok, it is  single processor with 4 cores. In other softwares, each
> > core is understood as a single processor, so at the end, I am able to
> > run job paralle in 4 "single" processors. How do QE understand the
> > number of processors?
>
> Each core is actually a processor, and that's the way QE reports it. You
> are actually running on only one core.
>
>
> > I am using the script that come inside the example tar downloaded from
> > QE site.
>
> There are many scripts in the examples tarball. Please refer to the
> mpiexec documentation. If you are referreing to environment_variables,
> maybe you haven't noticed that the PARA_PREFIX variable is defined twice,
> one after each other, if you have changed the first, than your
> modification is overwritten immediately afterwards (yes, it is a error of
> the script).
>
> regards
>
>
>
> --
> Lorenzo Paulatto
> SISSA  &  DEMOCRITOS (Trieste)
> phone: +39 040 3787 511
> skype: paulatz
> www:   http://people.sissa.it/~paulatto/<http://people.sissa.it/%7Epaulatto/>
>
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-- 
--------------------------------------------------
Duy Le
PhD Student
Department of Physics
University of Central Florida.
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