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1# mpiCheckPhaseHook {#setup-hook-mpi-check}
2
3
4This hook can be used to setup a check phase that
5requires running a MPI application. It detects the
6used present MPI implementation type and exports
7the neceesary environment variables to use
8`mpirun` and `mpiexec` in a Nix sandbox.
9
10
11Example:
12
13```nix
14 { mpiCheckPhaseHook, mpi, ... }:
15 {
16 # ...
17
18 nativeCheckInputs = [
19 openssh
20 mpiCheckPhaseHook
21 ];
22 }
23```
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