[mpich-discuss] Help: MPICH for a beginner

[Pavan Balaji]

You can find instructions to get started in the MPICH2 README.

You can run multiple processes on a single core machine, but the 
performance can be quite bad.

  -- Pavan

On 07/12/2010 07:38 PM, Michele Rosso wrote:
> Hi,
> 
> I am having my first experience with MPICH.
> I am working on a MPI-parallel code that is currently running on a
> supercomputer (i.e. Intrepid).
> It would be very useful for me to be able to test it (I mean, a reduced
> version of it, with a very very course computational grid) on the pc in
> my office, but the latter has a single core CPU (32 bit).
> If I am not mistaking, it is possible to run a parallel code on a single
> core machine, by running many processes simultaneously on the same core.
> 
> I need to know how to do that ( i.e.,
> how to use MPICH to tell my machine that my code must run on 4 processes
> for example, one of which is the master one; how to compile and to run
> it etc etc  ).
> Is there anyone who may help me? I use Ubuntu 10.04 32 bit and the code
> is parallelized with a master-slaves technique.
> 
> Thanks in advance,
> 
> Michele
> 
> _______________________________________________
> mpich-discuss mailing list
> mpich-discuss at mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji