MPI_Group_size function

Retrieves the size of the specified group.

Syntax

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

Parameters

• group
  The group to evaluate.

• size [out]
  A pointer to an integer that, on return, contains the size of the specified group.

Return value

Returns MPI_SUCCESS on success. Otherwise, the return value is an error code.

In Fortran, the return value is stored in the IERROR parameter.

Fortran

    MPI_GROUP_SIZE(GROUP, SIZE, IERROR)
        INTEGER GROUP, SIZE, IERROR 

Requirements

Product	HPC Pack 2012 MS-MPI Redistributable Package, HPC Pack 2008 R2 MS-MPI Redistributable Package, HPC Pack 2008 MS-MPI Redistributable Package or HPC Pack 2008 Client Utilities
Header	Mpi.h; Mpif.h
Library	Msmpi.lib
DLL	Msmpi.dll

See also

MPI Group Functions