MPI_Request_fromint(3)

📦
version 5.0.1 · 2 versions
, in nixos 26.05, ubuntu stonking

💖 MPI_Request_fromint(3) — the glow-up potion for your int handles 💖

okay bestie, welcome to the MPI manual, section 3, and today's main character is MPI_Request_fromint. yes she's short. no she's not less iconic for it. 🎀

✨ NAME ✨

MPI_Request_fromint — literally converts an integer handle into an MPI_Request. that's it. that's the whole job. she's a translator, a bridge, a little fairy godmother for your handles 🧚

✨ SYNOPSIS ✨

MPI_Request MPI_Request_fromint(int request)

✨ INPUT PARAMETERS ✨

  • request — a request, but as an integer. yes, like, just the raw integer version. this is the one you're handing over so she can turn it into a proper MPI_Request 🫶

✨ THREAD AND INTERRUPT SAFETY ✨

okay so the tea ☕: this routine is thread-safe. what that means for you is that multiple threads can all call it at the same time and you do not need to bring your own user-provided thread locks. no extra security detail required, she handles herself. 💅

but — and hear me out — she is not interrupt safe. 😭 typically this is because of memory allocation routines like malloc, or other non-MPICH runtime routines that are themselves not interrupt-safe. so yeah, threads: slay. interrupts: not it. periodt.

do not be the person who assumes "thread-safe" means "interrupt-safe". they are NOT the same vibe check. 🙈

that's the whole page bestie, she's short and she knows exactly what she is 💜

this lil number came from the MPI manual, dated 4/10/2026 — mwah, take care of her, and go convert those handles responsibly 👑✨🌸

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