SHMEM_MY_PE(3)

💅 SHMEM_MY_PE(3) — Open MPI 💅

okay so this page is literally the Open MPI manual for SHMEM_MY_PE(3), and it's all about that iconic question: “bestie, which PE am I?” ✨

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🎀 NAME 🎀

• shmem_my_pe, my_pe, _my_pe — returns the virtual PE number of the calling PE. all three names are on the invite list, no cap. 🫶

✨ SYNOPSIS ✨

C or C++ besties:

#include <mpp/shmem.h>
int shmem_my_pe (void);
int my_pe (void);

Fortran besties:

include 'mpp/shmem.fh'
I = SHMEM_MY_PE ()
I = MY_PE ()

🌸 DESCRIPTION 🌸

my_pe() or shmem_my_pe() return the processing element (PE) number of the calling PE. it accepts no arguments — none, zero, not a single one, periodt. 🙈

the result is an integer between 0 and npes - 1, where npes is the total number of PEs executing the current program. so you're somewhere in that range, and that's your PE number. iconic. 👑

🦋 SEE ALSO 🦋

• intro_shmem(3)
• shmem_n_pes(3)
• shmem_init(3)

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cute little footer sign-off: this page comes from gitclone, version Unreleased developer copy, and the page name is SHMEM_MY_PE(3). no date printed in the footer, bestie — just those vibes. 🫶💖