A question about parallel computation

Satish Balay balay at mcs.anl.gov
Wed Jul 8 13:26:26 CDT 2009

Perhaps you are using the wrong mpiexec or mpirun. You'll have to use
the correspond mpiexec from MPI you've used to build PETSc.

Or if the MPI has special instruction on usage - you should follow
that [for ex: some clusters require extra options to mpiexec ]


On Wed, 8 Jul 2009, Yin Feng wrote:

> I am a beginner of PETSc.
> I tried the PETSC example 5(ex5) with 4 nodes,
> However, it seems every nodes doing the exactly the same things and
> output the same results again and again. is this the problem of petsc or
> MPI installation?
> Thank you in adcance!
> Sincerely,

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