MPI_T_FINALIZE(3)

💅 MPI_T_FINALIZE — the Open MPI glow-up

okay bestie, welcome to the MPI_T_finalize(3) page 💖 this is a manual page from Open MPI, and it's about closing out the MPI tool information interface — the flip side of MPI_T_init_thread(). Think of it as the "okay bye, love you, close the tab" of the tool interface era 🌸

✨ NAME ✨

MPI_T_finalize — literally just finalize the MPI tool information interface. that's the whole job, and it does it iconically 🎀

✨ SYNTAX ✨

C Syntax 💜

#include <mpi.h>

int MPI_T_finalize(void)

no args, no fuss, just vibes and a void ✨

✨ DESCRIPTION ✨

so here's the tea, bestie 🫖 MPI_T_finalize() finalizes the MPI tool information interface, and the way that it works is: you must call it the same number of times as MPI_T_init_thread() by the end of execution. periodt. matching set, like a friendship bracelet situation 👯‍♀️

the balance has to stay cute in the other direction too 💅 calls to MPI tool functions are allowed at any point in execution as long as MPI_T_init_thread() has been called at least once and the number of calls to MPI_T_init_thread() is greater than the number of calls to MPI_T_finalize(). it's giving "keep one foot in the door" energy 🚪✨

and not me warning you about the exact cliff edge 😭 if at any point in execution the number of calls to MPI_T_finalize() equals the number of calls to MPI_T_init_thread(), the MPI tool interface will no longer be available until another call to MPI_T_init_thread(). the interface fully leaves the group chat 💀

✨ NOTES ✨

before the end of execution the number of calls to MPI_T_init_thread() and MPI_T_finalize must be the same. ngl that's not a suggestion, that's the assignment 📋💖

✨ ERRORS ✨

MPI_T_finalize will fail if:

• MPI_T_ERR_NOT_INITIALIZED — the MPI Tools interface not initialized 🙈 (you never opened it, bestie, now there's nothing to close)

✨ SEE ALSO ✨

• MPI_T_init_thread — the other half of this iconic duo 🫶

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and that's the page, babe! this was Open MPI, dated Sep 11, 2026 ✨ and the copyright belongs to 2003-2026, The Open MPI Community 👑 mwah, go forth and balance your init/finalize calls fr fr 💅🌈