could you pls type directly:<br>mpirun (or mpiexec) -np 4 pw.x < <a href="http://input.in">input.in</a> > output.out<br><br>Best,<br><br><div class="gmail_quote">On Fri, Aug 28, 2009 at 11:26 AM, Lorenzo Paulatto <span dir="ltr"><<a href="mailto:paulatto@sissa.it">paulatto@sissa.it</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">In data 28 agosto 2009 alle ore 17:11:59, I. Camps <<a href="mailto:i_camps@yahoo.com.br">i_camps@yahoo.com.br</a>><br>
ha scritto:<br>
<div class="im">> ok, it is single processor with 4 cores. In other softwares, each<br>
> core is understood as a single processor, so at the end, I am able to<br>
> run job paralle in 4 "single" processors. How do QE understand the<br>
> number of processors?<br>
<br>
</div>Each core is actually a processor, and that's the way QE reports it. You<br>
are actually running on only one core.<br>
<div class="im"><br>
<br>
> I am using the script that come inside the example tar downloaded from<br>
> QE site.<br>
<br>
</div>There are many scripts in the examples tarball. Please refer to the<br>
mpiexec documentation. If you are referreing to environment_variables,<br>
maybe you haven't noticed that the PARA_PREFIX variable is defined twice,<br>
one after each other, if you have changed the first, than your<br>
modification is overwritten immediately afterwards (yes, it is a error of<br>
the script).<br>
<div><div></div><div class="h5"><br>
regards<br>
<br>
<br>
<br>
--<br>
Lorenzo Paulatto<br>
SISSA & DEMOCRITOS (Trieste)<br>
phone: +39 040 3787 511<br>
skype: paulatz<br>
www: <a href="http://people.sissa.it/%7Epaulatto/" target="_blank">http://people.sissa.it/~paulatto/</a><br>
<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>--------------------------------------------------<br>Duy Le<br>PhD Student<br>Department of Physics<br>University of Central Florida.<br>