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mpi_group_free(3openmpi) [osx man page]

MPI_Group_free(3OpenMPI)												  MPI_Group_free(3OpenMPI)

NAME
MPI_Group_free - Frees a group. SYNTAX
C Syntax #include <mpi.h> int MPI_Group_free(MPI_Group *group) Fortran Syntax INCLUDE 'mpif.h' MPI_GROUP_FREE(GROUP, IERROR) INTEGER GROUP, IERROR C++ Syntax #include <mpi.h> void Group::Free() INPUT
/OUTPUT PARAMETER group Group (handle). OUTPUT PARAMETER
IERROR Fortran only: Error status (integer). DESCRIPTION
This operation marks a group object for deallocation. The handle group is set to MPI_GROUP_NULL by the call. Any ongoing operation using this group will complete normally. NOTE
On return, group is set to MPI_GROUP_NULL. 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_Group_free(3OpenMPI)

Check Out this Related Man Page

MPI_File_get_group(3OpenMPI)											      MPI_File_get_group(3OpenMPI)

NAME
MPI_File_get_group - Returns a duplicate of the process group of a file. SYNTAX
C Syntax #include <mpi.h> int MPI_File_get_group(MPI_File fh, MPI_Group *group) Fortran Syntax INCLUDE 'mpif.h' MPI_FILE_GET_GROUP(FH, GROUP, IERROR) INTEGER FH, GROUP, IERROR C++ Syntax #include <mpi.h> MPI::Group MPI::File::Get_group() const INPUT PARAMETER
fh File handle (handle). OUTPUT PARAMETERS
group Group that opened the file (handle). IERROR Fortran only: Error status (integer). DESCRIPTION
MPI_File_get_group returns a duplicate of the group of the communicator used to open the file associated with fh. The group is returned in group. The user is responsible for freeing group, using MPI_Group_free. 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. For MPI I/O function errors, the default error handler is set to MPI_ERRORS_RETURN. The error handler may be changed with MPI_File_set_errhandler; the predefined error handler MPI_ERRORS_ARE_FATAL may be used to make I/O errors fatal. Note that MPI does not guarantee that an MPI program can continue past an error. Open MPI 1.2 September 2006 MPI_File_get_group(3OpenMPI)
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