[mpich-discuss] Questions about Installation

[Pavan Balaji]

The MPI installation needs to be identical on *all* machines in the 
cluster. Is your /home/cluster/mpich2-install folder visible on all 
machines? This is typically achieved by installing it on a shared 
file-system (such as NFS) and mounting it on all the machines in the 
cluster. You can also manually install it on all machines at the same 
location, but that's usually error prone as you might miss some machine 
or install it in a slightly different location.

Some more information on how to launch the application is available 
here: 
http://wiki.mcs.anl.gov/mpich2/index.php/Using_the_Hydra_Process_Manager

  -- Pavan

On 12/29/2010 02:23 PM, Roberto Neves Gonzaga wrote:
> Dear Sir,
>
> FirstI wish everyone a prosperous new year. I am setting up a Beowulf
> cluster in virtual machine (VirtualBox) and I am using Fedora 13, as
> part of a final project for my university end course, using the passing
> libraries PVM and MPICH2 (version MPICH2-1.3.1). I have followed all the
> steps in your Installer's Guide, and almost everything seems to be
> working. I could run the example but just at the most master machine
> (front-end).
>
> I havesome questions and would like if possible that you give me some
> explanations.
>
> Myfinal installation folder is: home/cluster/mpich2-install
>
> The line:/home/cluster/mpich2-install
>
> At the line c, what should I have to do: execute the line or I have to
> increase the line in the file /.bash_profileor other file?
>
> In the exemple mpiexec -f machinefile -n <number> ./examples/cpiI did
> not understand what means machinefile I have to create some file
> informing the hosts?
>
> What isthe correct procedure for that the MPI works on all machines in
> the cluster?
> In certain situations, using the command */mpirun/* I get the answer
> down. What does it mean? What should I do about it?
>
> [proxy:0:0 at mestre]
> HYDU_create_process(/home/cluster/mpich2-1.3.1/src/pm/hydra/utils/launch/launch.c:69):
> execvp error on file cpi (No such file or directory)
>
> Best regards
>
> Roberto Neves Gonzaga, Rio de Janeiro, Brazil.
>
>
>
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-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji