Thanks Rajeev,<div><br></div><div>Yhen my machinefile file, is well formed?</div><div><br></div><div>The parameter -n , reference to number of machines or nodes in the cluster?</div><div><br></div><div>Thanks for your help :)</div>
<div><br clear="all"><br>Bernardo Augusto García Loaiza<br>Ingeniero de Sistemas <br>Estudiante de Maestría en Ingeniería Informática - Universidad EAFIT<div><a href="http://about.me/bgarcial" target="_blank">http://about.me/bgarcial</a><br>
<div><br></div></div><br>
<br><br><div class="gmail_quote">On Mon, Feb 27, 2012 at 7:44 PM, Rajeev Thakur <span dir="ltr"><<a href="mailto:thakur@mcs.anl.gov">thakur@mcs.anl.gov</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
The machinefile should be in the directory from where you are running the mpiexec command, or you can give the full path to the machinefile. You need to be able to ssh from one machine to the other.<br>
<div class="im"><br>
<br>
On Feb 27, 2012, at 5:05 PM, Bernardo Augusto García Loaiza wrote:<br>
<br>
> My machine file content is<br>
><br>
> <a href="http://sistemas.eafit.edu.co:4" target="_blank">sistemas.eafit.edu.co:4</a><br>
> slave-1:2<br>
> slave-2:2<br>
><br>
><br>
> Thanks for your help, Best Regards again.<br>
><br>
> Bernardo Augusto García Loaiza<br>
> Ingeniero de Sistemas<br>
> Estudiante de Maestría en Ingeniería Informática - Universidad EAFIT<br>
> <a href="http://about.me/bgarcial" target="_blank">http://about.me/bgarcial</a><br>
><br>
><br>
><br>
><br>
> 2012/2/27 Bernardo Augusto García Loaiza <<a href="mailto:botibagl@gmail.com">botibagl@gmail.com</a>><br>
> Dear friends of Mathematics and Computer Science Division Argonne National Laboratory<br>
><br>
> I am installing mpich2 for paralell procesing practice.<br>
><br>
> I took the following guide <a href="http://www.mcs.anl.gov/research/projects/mpich2/documentation/files/mpich2-1.4.1-installguide.pdf" target="_blank">http://www.mcs.anl.gov/research/projects/mpich2/documentation/files/mpich2-1.4.1-installguide.pdf</a><br>
><br>
> In the page 5, you speak about of create a file named machinefile, wich content is the list of hosts in the cluster.<br>
> This file must be created in any particular path? What is the location?<br>
><br>
> I was installed mpich2 in tres hosts (one master and two workers), building the package file.<br>
><br>
> When i enter the instruction mpiexec -n 3 -f machinefile /usr/local/mpich2-1.4.1p1/examples/cpi<br>
><br>
> where:<br>
><br>
> • The machinefile file is located in /root/ in all hosts in the cluster.<br>
> • -n 3 make reference to the number of hosts in the cluster. It's correct? or -n 3 make reference to the cores in each host?<br>
><br>
> The output of mpiexec -n 3 -f machinefile /usr/local/mpich2-1.4.1p1/examples/cpi is :<br>
><br>
</div>> <Picture 10.png><br>
<div class="im">><br>
> When i enter the instruction mpiexec -n 6 -f machinefile /usr/local/mpich2-1.4.1p1/examples/cpi , the output is:<br>
><br>
</div>> <Picture 8.png><br>
<div class="im">><br>
> The system try setup connection through ssh with other hosts, but wait and fail.<br>
><br>
> I appreciate your valuable help and collaboration.<br>
> Best Regards<br>
><br>
><br>
> Bernardo Augusto García Loaiza<br>
> Ingeniero de Sistemas<br>
> Estudiante de Maestría en Ingeniería Informática - Universidad EAFIT<br>
> <a href="http://about.me/bgarcial" target="_blank">http://about.me/bgarcial</a><br>
><br>
><br>
><br>
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</blockquote></div><br></div>