SHMEM_N_PES(3)

💖 NAME 💖

shmem_n_pes, _num_pes — bestie, this is the one that tells you how many PEs are out here running your application. That's processing elements, okurrr? The whole squad. 💅

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✨ SYNOPSIS ✨

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 ()

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🦋 DESCRIPTION 🦋

okay so, num_pes() or shmem_n_pes() — both of them, iconic behavior — return the total number of PEs running in an application. That's it. That's the whole vibe check. You ask, it tells you how many of y'all are out there. 🔥

No cap, it's literally just counting your friends for you. 🫶

🌸 See also:

• intro_shmem(3)
• shmem_my_pe(3)
• shmem_init(3)

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👑 Copyright 👑

2003-2026, The Open MPI Community

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and that's the tea bestie 💜 this page was handed down to us on Sep 10, 2026, straight from the Open MPI girlies, filed under SHMEM_N_PES(3) — go forth and go count your PEs, mwah 🎀✨