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diff --git a/nixpkgs/doc/hooks/mpi-check-hook.section.md b/nixpkgs/doc/hooks/mpi-check-hook.section.md
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+#  mpiCheckPhaseHook {#setup-hook-mpi-check}
+
+
+This hook can be used to setup a check phase that
+requires running a MPI application. It detects the
+used present MPI implementation type and exports
+the neceesary environment variables to use
+`mpirun` and `mpiexec` in a Nix sandbox.
+
+
+Example:
+
+```nix
+  { mpiCheckPhaseHook, mpi, ... }:
+
+  ...
+
+  nativeCheckInputs = [
+    openssh
+    mpiCheckPhaseHook
+  ];
+```
+
+