[Trilinos-Users] Using SerialComm when MPI is enabled

[Eric Marttila]

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