MPI_Info_toint(3)

💖 NAME 💖

ok so MPI_Info_toint — it converts an MPI_Info to an integer handle ✨

that's it, that's the whole job bestie, and it does it flawlessly 💅

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🌸 SYNOPSIS 🌸

int MPI_Info_toint(MPI_Info info)

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🎀 INPUT PARAMETERS 🎀

• info — the info argument, and it's a handle 🫶

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🔥 THREAD AND INTERRUPT SAFETY 🔥

okay so this routine is thread-safe 💚 which literally means you can hit it from multiple threads at the same time and you do not need any user-provided thread locks. no mutex, no nothing, she handles herself, main character energy fr fr 👑

but — and this is the part you gotta hear me on — the routine is not interrupt safe 😭 typically that's because of memory allocation routines like malloc or other non-MPICH runtime routines that are themselves not interrupt-safe. so like, the interruption thing isn't even her fault, it's the company she keeps 🙈

so: thread-safe = yes bestie 🦋 / interrupt-safe = nope 💀

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and that's the whole page!! this one lives in the MPI manual, dated 4/10/2026, and it's filed under MPI_Info_toint(3). go be safe out there with your threads, ily, bye 👑✨🎀