[Beowulf] New person to building a beowulf cluster

Rusty Lusk lusk at mcs.anl.gov
Fri Nov 12 20:57:54 EST 2004


A good plan would be to get MPICH2, which is an all-new implemantation
of MPI by the MPICH team.  It replaces the whole old p4 library, and has
better diagnostics on system configuration, as well as being an
implementation of 100% of the MPI-2 standard.  Get it from
http://www.mcs.anl.gov/mpi/mpich and if there are problems email
mpich2-maint at mcs.anl.gov.  There are some significant differences in how
the new version starts processes, so look at the documentation in the
User's Guide on moving from MPICH1 to MPICH2.

- Rusty Lusk

> Recently took on a project doing a Beowulf cluster and I have configured the
> files necessary to run MPICH-1.2.6 to run on 3 computers using Red Hat
> 7.2(following directions). I am running into a problem where I can not run
> it on my two slave nodes(yet I can run it on my master node) it will pause
> for a while and then says p4_error: Could not get host by name for host
> node0.home.net I think it might have something to do with the way I
> configured my hosts file in which the first line is the node name, second
> line is local host, and third is my master node (node0).  Anyone have any
> other suggestions or comments as to what I should check?
> 
>  
> 
> Drew
> 
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