<br><br><div class="gmail_quote">2010/4/14 Lisandro Dalcin <span dir="ltr"><<a href="mailto:dalcinl@gmail.com">dalcinl@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div class="im">On 14 April 2010 19:07, Pedro Torres <<a href="mailto:torres.pedrozpk@gmail.com">torres.pedrozpk@gmail.com</a>> wrote:<br>
> Thanks, for a quickly reply. I have four nodes (GigaEthernet), each node<br>
> with two Quad Core E5410@2.33GHz, Mem 16Gb - DDR2 667Mhz., and definitely<br>
> I'm not have the enough memory bandwidth for a reasonable speedup.<br>
><br>
<br>
</div>Smart process to core binding may help you (mpiexec.hydra -n 4/8<br>
--binding topo:sockets), Open MPI has equivalent functionality<br>
<br>
<a href="http://wiki.mcs.anl.gov/mpich2/index.php/Using_the_Hydra_Process_Manager#Process-core_Binding" target="_blank">http://wiki.mcs.anl.gov/mpich2/index.php/Using_the_Hydra_Process_Manager#Process-core_Binding</a><br>
</blockquote><div><br>Yes,<span id="result_box" class="short_text"><span style="background-color: rgb(255, 255, 255);" title="realmente me ayudo"> It really helped me</span></span>. Thank you very much!.<br><br>Regards<br>
</div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<font color="#888888"><br>
<br>
--<br>
Lisandro Dalcin<br>
---------------<br>
CIMEC (INTEC/CONICET-UNL)<br>
Predio CONICET-Santa Fe<br>
Colectora RN 168 Km 472, Paraje El Pozo<br>
Tel: +54-342-4511594 (ext 1011)<br>
Tel/Fax: +54-342-4511169<br>
</font></blockquote></div><br><br clear="all"><br>-- <br>Pedro Torres<br>GESAR/UERJ<br>Rua Fonseca Teles 121, São Cristóvão<br>Rio de Janeiro - Brasil<br>