[mpich-discuss] mpich2-1.4.1p1 - Installation

[Bernardo Augusto García Loaiza]

Thanks Rajeev,

Yhen my machinefile file, is well formed?

The parameter -n ,  reference to number of machines or nodes in the cluster?

Thanks for your help :)


Bernardo Augusto García Loaiza
Ingeniero de Sistemas
Estudiante de Maestría en Ingeniería Informática - Universidad EAFIT
http://about.me/bgarcial




On Mon, Feb 27, 2012 at 7:44 PM, Rajeev Thakur <thakur at mcs.anl.gov> wrote:

> 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.
>
>
> On Feb 27, 2012, at 5:05 PM, Bernardo Augusto García Loaiza wrote:
>
> > My machine file content is
> >
> > sistemas.eafit.edu.co:4
> > slave-1:2
> > slave-2:2
> >
> >
> > Thanks for your help, Best Regards again.
> >
> > Bernardo Augusto García Loaiza
> > Ingeniero de Sistemas
> > Estudiante de Maestría en Ingeniería Informática - Universidad EAFIT
> > http://about.me/bgarcial
> >
> >
> >
> >
> > 2012/2/27 Bernardo Augusto García Loaiza <botibagl at gmail.com>
> > Dear friends of Mathematics and Computer Science Division Argonne
> National Laboratory
> >
> > I am installing mpich2 for paralell procesing practice.
> >
> > I took the following guide
> http://www.mcs.anl.gov/research/projects/mpich2/documentation/files/mpich2-1.4.1-installguide.pdf
> >
> > In the page 5, you speak about of create a file named machinefile, wich
> content is the list of hosts in the cluster.
> > This file must be created in any particular path? What is the location?
> >
> > I was installed mpich2 in tres hosts (one master and two workers),
> building the package file.
> >
> > When i enter the instruction mpiexec -n 3 -f machinefile
> /usr/local/mpich2-1.4.1p1/examples/cpi
> >
> > where:
> >
> >       • The machinefile file is located in /root/ in all hosts in the
> cluster.
> >       • -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?
> >
> > The output of  mpiexec -n 3 -f machinefile
> /usr/local/mpich2-1.4.1p1/examples/cpi is :
> >
> > <Picture 10.png>
> >
> > When i enter the instruction mpiexec -n 6 -f machinefile
> /usr/local/mpich2-1.4.1p1/examples/cpi , the output is:
> >
> > <Picture 8.png>
> >
> > The system try setup connection through ssh with other hosts, but wait
> and fail.
> >
> > I appreciate your valuable help and collaboration.
> > Best Regards
> >
> >
> > Bernardo Augusto García Loaiza
> > Ingeniero de Sistemas
> > Estudiante de Maestría en Ingeniería Informática - Universidad EAFIT
> > http://about.me/bgarcial
> >
> >
> >
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