---
name: "gerris2D"
section: "1"
platform: "linux"
package: "gerris"
version: "20131206+dfsg-21+b3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/gerris2D"
---

# gerris2D(1)

the Gerris flow solver simulation engine.

## NAME

gerris2D, gerris3D - the Gerris flow solver simulation engine.

## SYNOPSIS

**gerris** \[OPTION\]*FILE*

## DESCRIPTION

This manual page documents briefly the **gerris** command.

## 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.

- **-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.

- **-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).

- **-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.

## 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).