MPI_Group_size - Returns the size of a group


SYNOPSIS

       C:

            #include <mpi.h>

            int MPI_Group_size ( group, size )
            MPI_Group group;
            int *size;

       C++:

            #include <mpi.h>

            int Group::Get_size() const

       Fortran:

            INCLUDE "mpif.h" (or USE MPI)

            INTEGER group, size, ierror

            CALL MPI_GROUP_SIZE(group, size, ierror)


STANDARDS

       This release implements the MPI 1.2 standard, as
       documented by the MPI Forum in the spring 1997 release of
       MPI:  A Message Passing Interface Standard.


DESCRIPTION

       The MPI_Group_size routine returns the size of a group.
       This routine accepts the following parameters:

       group     Specifies the group (handle)

       size      Returns the number of processes in the group
                 (integer)

       ierror    Specifies the return code value for successful
                 completion, which is in MPI_SUCCESS.
                 MPI_SUCCESS is defined in the mpif.h file.


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