[Trilinos-Users] Teuchos MpiComm

[David Hysom]

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!