Merge pull request #138140 from markuskowa/fix-mpi-manual

nixpkgs/manual: add mvapich to overlays/mpi section

authored by markuskowa and committed by GitHub 3333520a 0b875203

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doc/using/overlays.chapter.md
··· 138 138 139 139 - [MPICH](https://www.mpich.org/), attribute name `mpich` 140 140 141 + - [MVAPICH](https://mvapich.cse.ohio-state.edu/), attribute name `mvapich` 142 + 141 143 To provide MPI enabled applications that use `MPICH`, instead of the default `Open MPI`, simply use the following overlay: 142 144 143 145 ```nix