mpi_comm_compare(3openmpi) [osx man page]

MPI_Comm_compare(3OpenMPI)												MPI_Comm_compare(3OpenMPI)

NAME

       MPI_Comm_compare  -  Compares two communicators.

SYNTAX

C Syntax
       #include <mpi.h>
       int MPI_Comm_compare(MPI_Comm comm1, MPI_Comm comm2, int *result)

Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_COMM_COMPARE(COMM1, COMM2, RESULT, IERROR)
	    INTEGER   COMM1, COMM2, RESULT, IERROR

C++ Syntax
       #include <mpi.h>
       static int Comm::Compare(const Comm& comm1, const Comm& comm2)

INPUT PARAMETERS

       comm1	 Comm1 (handle).

       comm2	 Comm2 (handle).

OUTPUT PARAMETERS

       result	 Result of comparison (integer).

       IERROR	 Fortran only: Error status (integer).

DESCRIPTION

       MPI_IDENT  results  if  and  only  if  comm1  and comm2 are handles for the same object (identical groups and same contexts). MPI_CONGRUENT
       results if the underlying groups are identical in constituents and rank order; these communicators  differ  only  by  context.  MPI_SIMILAR
       results of the group members of both communicators are the same but the rank order differs. MPI_UNEQUAL results otherwise.

ERRORS

       Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ func-
       tions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception  mechanism
       will be used to throw an MPI:Exception object.

       Before  the error value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job, except for
       I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN  may	be
       used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.

Open MPI 1.2							  September 2006					MPI_Comm_compare(3OpenMPI)

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MPI_Errhandler_free(3OpenMPI)											     MPI_Errhandler_free(3OpenMPI)

NAME

       MPI_Errhandler_free  - Frees an MPI-style error handler.

SYNTAX

C Syntax
       #include <mpi.h>
       int MPI_Errhandler_free(MPI_Errhandler *errhandler)

Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_ERRHANDLER_FREE(ERRHANDLER, IERROR)
	    INTEGER   ERRHANDLER, IERROR

C++ Syntax
       #include <mpi.h>
       void Errhandler::Free()

INPUT PARAMETER

       errhandler
		 MPI error handler (handle). Set to MPI_ERRHANDLER_NULL on exit.

OUTPUT PARAMETER

       IERROR	 Fortran only: Error status (integer).

DESCRIPTION

       Marks  the  error handler associated with errhandler for deallocation and sets errhandler to MPI_ERRHANDLER_NULL. The error handler will be
       deallocated after all communicators associated with it have been deallocated.

ERRORS

       Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ func-
       tions  do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism
       will be used to throw an MPI:Exception object.

       Before the error value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job, except  for
       I/O  function  errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be
       used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.

SEE ALSO

       MPI_Comm_create_errhandler
       MPI_Comm_get_errhandler
       MPI_Comm_set_errhandler

Open MPI 1.2							  September 2006				     MPI_Errhandler_free(3OpenMPI)

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mpi_comm_compare(3openmpi) [osx man page]

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