MPI_Session_f2c(3)

💖 NAME 💖

MPI_Session_f2c — bestie, this one converts a Fortran INTEGER into an MPI_Session. That's it. That's the whole job. And it does it flawlessly, no cap. ✨

---

🦋 SYNOPSIS 🦋

MPI_Session MPI_Session_f2c(MPI_Fint session)

---

🌸 INPUT PARAMETERS 🌸

• session — the session, babe. (It's marked as None in the original, meaning there's nothing extra to specify here. 🎀)

---

🔥 THREAD AND INTERRUPT SAFETY 🔥

Okay so the vibe check on safety: this routine is thread-safe. What that means, bestie, is that you can literally call it from multiple threads at the same time and it's totally fine — no user-provided thread locks required, none, zero, you don't gotta do a thing. Slay. 💅

But — and this is the part where we pay attention — it is not interrupt safe. 😭 Not me warning you about interrupts. Typically this is because it uses memory allocation routines like malloc or other non-MPICH runtime routines, and those routines are themselves not interrupt-safe. So like… don't interrupt it. Periodt. 🫶

---

That's genuinely the whole page, bestie — short, sweet, and iconic. 👑

Source and version vibes: this is from the MPI manual, dated 4/10/2026, filed under MPI_Session_f2c(3). Byeee, go convert some Fortran integers responsibly. 💜🦋✨