Trigger [run ci]

Author: spenke91

.github/workflows/tests_cmake_t8code_w_other_compilers.yml

@@ -67,6 +67,17 @@ jobs:
       run: sudo apt-get install clang -y
     - name: Check clang version
       run: clang --version
+    - name: Install openmpi with CLANG
+      run: |
+      mkdir install_ompi_clang
+      wget https://download.open-mpi.org/release/open-mpi/v4.1/openmpi-4.1.6.tar.gz
+      tar xf openmpi-4.1.6.tar.gz
+      cd openmpi-4.1.6
+      CC=clang CXX=clang++ ./configure --prefix=../install_ompi_clang
+      make -j$(nproc)
+      make install
+      cd ..
+      export PATH=$(pwd)/install_ompi_clang/bin:$PATH
     - name: Show MPI version
       run: |
         export CC=clang