Using MPI on a Github Action - c++

Question

I'm working on a C++ project which uses MPI and OMP for some parallel stuff. The thing is that I'd like to include a Github Action in the repo which compiles the code and run the tests after each push on master. I have already use Travis CI as a CI tool and it worked perfectly (both compiling and running the tests), but for some reason I cannot configure the action properly. Every time I push to master it appears the following error when the compiling stage reaches a file which uses MPI:
/home/runner//.file.cpp:14:10: fatal error: mpi.h: No such file or directory
14 | #include <mpi.h>
| ^~~~~~~
The action.yml file is as following:
name: CMake
on:
push:
branches:
- master
- develop
pull_request:
env:
# Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
BUILD_TYPE: Release
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout#v2
- uses: egor-tensin/setup-gcc#v1
with:
version: 10
platform: x64
- uses: mpi4py/setup-mpi#v1
with:
mpi: 'mpich'
- name: Compile
run: |
cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
export CC=cc
export CXX=CC
cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} --target all -- -j 14
- name: Run Tests
run:
./${{github.workspace}}/bin/tests
I had tried to change the configuration several times using other MPI versions but the problem always appears.