_num_pes(3)

_num_pes3

Usage

C or C++:

#include <mpp/shmem.h>
int _num_pes (void)
int shmem_n_pes (void)

Fortran:

include 'mpp/shmem.fh'
I = NUM_PES ()
I = SHMEM_N_PES ()

_num_pes, _num_pes shmem_n_pes - Returns the number of processing elements (PEs) used to run the application.

Overview

num_pes() or shmem_n_pes() return the total number of PEs running in an application.

SEE ALSO:

From openmpi 5.0.11-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.