[Trilinos-Users] Teuchos MpiComm

[David Hysom]

We need want to use raw MPI calls, instead of using the
Teuchos Comm methods.

On 12/23/2014 11:06 AM, Alicia Klinvex wrote:
> Hello David,
>
> What are you trying to do with the MPI_Comm?  There's a really good 
> chance that whatever it is, you can do it with the Teuchos::Comm itself.
>
> - Alicia
>
> On Tue, Dec 23, 2014 at 1:34 PM, David Hysom <hysom1 at llnl.gov 
> <mailto:hysom1 at llnl.gov>> wrote:
>
>     Hi,
>
>     What is the correct way to get the underlying MPI_Comm object here:
>
>     Teuchos::RCP<matrix_t> A...;
>
>     //doesn't work:
>     Teuchos::RCP< const Teuchos::MpiComm< int > > tr_comm =
>     m_A->getComm();
>
>     //works, but I don't have an MpiComm:
>     Teuchos::RCP< const Teuchos::Comm< int > > tr_comm = m_A->getComm();
>
>     //fails because I don't have an MpiComm
>     Teuchos::RCP<const Teuchos::OpaqueWrapper<int> > cmm =
>     tr_comm->getRawMpiComm();
>
>     Thanks in advance for help with this!
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>

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