SHMEM_FINALIZE(3)

🌸 NAME 🌸

Okay so this is shmem_finalize — the SHMEM_FINALIZE(3) page from Open MPI, bestie 💅. It’s a collective operation that releases resources used by the OpenSHMEM library. This only terminates the Open-SHMEM portion of a program, not the entire program. Yes, your whole program stays alive 🫶.

---

✨ SYNOPSIS ✨

C or C++:

#include <mpp/shmem.h>

void shmem_finalize(void)

Fortran:

include 'mpp/shmem.fh'
CALL SHMEM_FINALIZE

---

💖 DESCRIPTION 💖

shmem_finalize is a collective operation that ends the OpenSHMEM portion of a program previously initialized by shmem_init, and it releases resources used by the OpenSHMEM library. This collective operation requires all PEs to participate in the call. There is an implicit global barrier in shmem_finalize so that pending communication is completed, and no resources can be released until all PEs have entered shmem_finalize.

⚠️ Bestie, listen: shmem_finalize must be the last OpenSHMEM library call encountered in the OpenSHMEM portion of a program.

A call to shmem_finalize will release any resources initialized by a corresponding call to shmem_init. All processes and threads that represent the PEs will still exist after the call to shmem_finalize returns, but they will no longer have access to any resources that have been released. It’s giving cleanup era, not whole-program shutdown 💀.

👀 SEE ALSO 👀

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

Go peek at those if you need the lore, iykyk 💜.

---

👑 COPYRIGHT 👑

2003-2026, The Open MPI Community — iconic, protected, periodt 💖.

---

Bestie, that’s the whole SHMEM_FINALIZE(3) glow-up from Open MPI, dated May 14, 2026. Now go forth and finalize responsibly 🫶✨