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RedHat 9 (Linux i386) - man page for mpil_universe_size (redhat section 3)

MPIL_Universe_size(3)						      LAM/MPI						     MPIL_Universe_size(3)

NAME
MPIL_Universe_size - LAM/MPI-specific function to obtain the number of nodes in the MPI environment
SYNOPSIS
#include <mpi.h> int MPIL_Universe_size(int *size)
OUTPUT PARAMETER
size - number of nodes in the MPI environment (from lamboot )
NOTES
This function is deprecated. It has been replaced with an MPI-2 attribute on MPI_COMM_WORLD - MPI_UNIVERSE_SIZE , which provides the same functionality. This function is (or effectively is) a wrapper to the replacement attribute, anyway. User programs should use the MPI-2 replacement attribute instead of this function. Some functions are deprecated because their names did not conform to the stricter naming conventions of MPI-2; others are deprecated because they have been replaced with more flexible functionality.
SEE ALSO
MPI_Comm_attr_get
LOCATION
mpil_spawn.c
LAM
/MPI 6.5.8 11/10/2002 MPIL_Universe_size(3)