Teuchos::details Namespace Reference

Classes
class	MagValue
class	MagValue< ScalarType, true >
class	MagValue< ScalarType, false >
class	GivensRotator
class	GivensRotator< ScalarType, true >
class	GivensRotator< ScalarType, false >
struct	lapack_traits
struct	lapack_traits< std::complex< T > >
Functions
void	safeCommFree (MPI_Comm *comm)
	Give comm to MPI_Comm_free, if MPI is not yet finalized.
int	setCommErrhandler (MPI_Comm comm, MPI_Errhandler handler)

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Function Documentation

void Teuchos::details::safeCommFree

(

MPI_Comm *

comm

)

Give comm to MPI_Comm_free, if MPI is not yet finalized.

This function "frees" the given communicator by giving it to MPI_Comm_free. It only does so if MPI_Finalize has not yet been called. If MPI_Finalize has been called, this function does nothing, since it is not legal to call most MPI functions after MPI_Finalize has been called. This function also ignores any errors returned by MPI_Finalize, which makes it suitable for use in a destructor.

Note:

This function may allow a memory leak in your program, if you have allowed the MPI_Comm to persist after MPI_Finalize has been called.

Definition at line 62 of file Teuchos_DefaultMpiComm.cpp.

int Teuchos::details::setCommErrhandler	(	MPI_Comm	comm,
		MPI_Errhandler	handler
	)

Set the given communicator's error handler to handler.

If the MPI version is >= 2, this calls MPI_Comm_set_handler(). If the MPI version is 1, this calls MPI_Errhandler_set().

Definition at line 75 of file Teuchos_DefaultMpiComm.cpp.