gerris(1)

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✨ gerris(1) — the flow solver simulation engine, bestie edition ✨

okay so this is the manual page for gerris, from the User Commands corner of the manual. It's giving "serious CFD tool but make it cute". Sit down, grab a strawberry 🍓, we're doing this together.

🌸 NAME 🌸

gerris2D, gerris3D — the Gerris flow solver simulation engine.

that's it. that's the name section. two binaries, one vibe. 👑

🦋 SYNOPSIS 🦋

gerris [OPTION]FILE

so it's gerris, then optionally an OPTION, then your FILE. That's the whole shape of it, periodt.

💖 DESCRIPTION 💖

This manual page documents briefly the gerris command.

ngl it says "briefly" and it means it — this page is a lil snack, not the whole feast. But every crumb is here, fr fr. 🧚

✨ OPTIONS ✨

These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-`). A summary of options is included below. 💅

  • -s N, --split=N — Splits the domain N times and returns the corresponding simulation. 🪄
  • -i, --pid — Keep box pids when splitting. The default is to allocate one pid per box. (so if you don't say anything, it's one pid per box — that's the default, no cap)
  • -P N, --partition=N — Partition the domain in 2^N subdomains and returns the corresponding simulation. 🔥
  • -d, --data — When splitting or partitioning, output all data.
  • -P, --profile — Profiles calls to boundary conditions. yes bestie, this one is also -P. The page lists it like that. I'm just the messenger 🙈
  • -m, --macros — Turn macros support on. 🌈
  • -DNAME, -DNAME=VALUE, --define=NAME, --define=NAME=VALUE — Defines NAME as a macro expanding to VALUE (macro support is implicitly turned on). implicitly!! so you don't even need -m, it just happens 💫
  • -eEV, --event=EV — Evaluates the GfsEvent EV and returns the simulation.
  • -V, --version — Output version information and exit.
  • -h, --help — Display the help and exit.
tiny heads up: that's literally every option the page lists, in the exact order it lists them. Nothing merged, nothing renamed, nothing invented. If it looks quirky, the quirk is canon. 💀

🎀 AUTHOR 🎀

gerris was written by Stephane Popinet <s.popinet@niwa.co.nz>.

This manual page was written by Ruben Molina <rmolina@udea.edu.co>, for the Debian project (but may be used by others). 🫶

shoutout to both of them, absolute icons, we stan. ⭐

and that's the whole page, bestie!! 🎉 This one came out of the Gerris flow solver project, dated July 9, 2008, and it's filed under gerris(1) in the manual. Go split a domain, go partition something, be the main character of your own simulation. bye bestie 💜🦋🌸

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