[Trilinos-Users] Using SerialComm when MPI is enabled

[Eric Marttila]

Mike, C.S.N,
Just wanted to let you know that using the split communicator 
solved my problem. Thanks again for the quick responses to my 
question.
--Eric

On Tuesday, September 10, 2013 10:18:55 am Eric Marttila wrote:
> That sounds very promising - I will give that a try.  Thanks a
> lot for the help.
> --Eric
> 
> On Tuesday, September 10, 2013 09:34:49 am Heroux, Mike wrote:
> > Epetra_MpiComm can use a split comm.  You would create the
> > MPI split comm as normal and then create the Epetra_MpiComm
> > object by passing in the split comm to the constructor.
> > 
> > ML works with Belos and works with split communicators.
> > 
> > Mike
> > 
> > On Sep 10, 2013, at 7:49 AM, "Eric Marttila"
> 
> <eric.marttila at thermoanalytics.com> wrote:
> > > Splitting the communicator sounds promising - but it looks
> > > like that can only be done with a Teuchos comm.  Do you
> > > know if splitting is possible with the Epetra_MpiComm that
> > > I'm using? --Eric
> > > 
> > > On Tuesday, September 10, 2013 12:06:05 am C.S. Natarajan
> 
> wrote:
> > >> Can't you comm split and run it as an mpi job with a
> > >> single rank in a new communicator?
> > >> 
> > >> Doing a lot of comm splits might not be a good idea but a
> > >> single one, I think , shouldn't be a problem?
> > >> 
> > >> 
> > >> 
> > >> C.S.N
> 
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