[mpich-discuss] MPICH2 with MOSIX

[Pavan Balaji]

Alex,

On 11/27/2011 01:21 AM, Alex Margolin wrote:
> alex at singularity:~/huji/benchmarks/simple$ mosrun
> ~/huji/mpich/bin/mpiexec -n 3 ./simple
> #1 Got 0 from Fatal error in MPI_Finalize: Other MPI error, error stack:
> MPI_Finalize(281).................: MPI_Finalize failed
> MPI_Finalize(209).................:
> MPID_Finalize(117)................:

It looks like MOSIX is providing a bunch of nodes to MPICH2, and the 
three processes are spread out across a few nodes. Otherwise, TCP would 
not have been used at all. You can pass the -verbose flag to mpiexec to 
see what exactly is going on over there. The best bet would be to try to 
reproduce it "natively" by executing from a command-line over a bunch of 
processes.

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