add cache and artifact to simplify the test

.github/workflows/c-cpp.yml

@@ -10,42 +10,41 @@ env:
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
-
     steps:
-
       - run: echo "The job was automatically triggered by a ${{ github.event_name }} event."
       - run: echo "This job is now running on a ${{ runner.os }} server hosted by GitHub!"
       - run: echo "The name of your branch is ${{ github.ref }} and your repository is ${{ github.repository }}."
 
-      - name: Installling Open MPI
-        run: |
-          sudo apt-get install -y libopenmpi-dev
-
-      - name: Installing MATLAB
-        id:   setup-matlab
-        uses: matlab-actions/setup-matlab@v2
-        with:
-          release: R2023b
-
       - name: Check out repository code
         uses: actions/checkout@v4
-
-      - name: Modify PETSc's installation script
-        run: |
-          echo "Removing mpich from PETSc installation script"
-          sed -i.bak '/mpich/d' $ISSM_DIR/externalpackages/petsc/install-3.21-linux.sh
-
+
+      - name: Cache externalpackages
+        uses: actions/cache@v3
+        id: cache-externalpackages
+        env:
+          cache-name: cache-triangle-m1qn3-petsc
+        with:
+          path: ${{ env.ISSM_DIR }}/externalpackages/
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+
       - name: Install External packages
+        if: steps.cache-externalpackages.outputs.cache-hit != 'true'
         run: |
           cd $ISSM_DIR/externalpackages/triangle && ./install-linux.sh
           cd $ISSM_DIR/externalpackages/m1qn3    && ./install-linux.sh
           cd $ISSM_DIR/externalpackages/petsc    && ./install-3.21-linux.sh
-          source $ISSM_DIR/etc/environment.sh
-
+
+      - name: Get MATLAB
+        id:   setup-matlab
+        uses: matlab-actions/setup-matlab@v2
+        with:
+          release: R2023b
+          cache: true
+
       - name: Reconfigure ISSM
         run: |
+          source $ISSM_DIR/etc/environment.sh
           autoreconf -ivf
           ./configure --prefix=${ISSM_DIR} \
           --disable-static \
@@ -54,8 +53,8 @@ jobs:
           --with-numthreads=4 \
           --with-matlab-dir=${{ steps.setup-matlab.outputs.matlabroot }} \
           --with-fortran-lib="-L/usr/lib/x86_64-linux-gnu -lgfortran" \
-          --with-mpi-include="/usr/lib/x86_64-linux-gnu/openmpi/include/" \
-          --with-mpi-libflags="-L/usr/lib/x86_64-linux-gnu/openmpi/lib -lmpi_usempif08 -lmpi_usempi_ignore_tkr -lmpi_mpifh -lmpi -lmpi_cxx" \
+          --with-mpi-include="${ISSM_DIR}/externalpackages/petsc/install/include" \
+          --with-mpi-libflags="-L${ISSM_DIR}/externalpackages/petsc/install/lib -lmpi -lmpicxx -lmpifort" \
           --with-petsc-dir="${ISSM_DIR}/externalpackages/petsc/install" \
           --with-blas-lapack-dir="${ISSM_DIR}/externalpackages/petsc/install" \
           --with-metis-dir="${ISSM_DIR}/externalpackages/petsc/install" \
@@ -66,13 +65,45 @@ jobs:
           --with-m1qn3-dir="${ISSM_DIR}/externalpackages/m1qn3/install"
 
       - name: Compile ISSM
-        run: make -j8 install
+        run: make -j16 install
 
-      - name: Prepare MATLAB script
+      - name: Compress ISSM artifact
+        run: tar -cvf ISSM_artifact.tar -C ${{ env.ISSM_DIR }}/ .
+
+      - name: Upload ISSM artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: ISSM-${{ runner.os }}
+          path: ISSM_artifact.tar
+          compression-level: 1
+
+  test:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Download ISSM artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: ISSM-${{ runner.os }}
+          path: ${{ env.ISSM_DIR }}
+
+      - name: uncompress ISSM artifact
+        run: |
+          tar -xvf ISSM_artifact.tar
+          rm ISSM_artifact.tar
+          source $ISSM_DIR/etc/environment.sh
+        working-directory: ${{ env.ISSM_DIR }}
+        shell: 'bash'
+
+      - name: Get MATLAB
+        id:   setup-matlab
+        uses: matlab-actions/setup-matlab@v2
+        with:
+          release: R2023b
+          cache: true
+
+      - name: Creating matlab_ci.m
         run: |
-          echo "Modifying generic.m to avoid \"There are not enough slots available\""
-          sed -i.back "s/mpiexec -np %i/mpiexec -np %i --oversubscribe/g" $ISSM_DIR/src/m/classes/clusters/generic.m
-          echo "Creating matlab_ci.m"
           cat > ${ISSM_DIR}/matlab_ci.m << EOF
           % Go to the test directory
           cd $ISSM_DIR/test/NightlyRun/
@@ -86,15 +117,15 @@ jobs:
           quit(0);
           EOF
           cat ${ISSM_DIR}/matlab_ci.m
-
+          
       - name: Get run-matlab-command
         run: |
           wget -O /usr/local/bin/run-matlab-command https://ssd.mathworks.com/supportfiles/ci/run-matlab-command/v2/glnxa64/run-matlab-command
           chmod +x /usr/local/bin/run-matlab-command
-
-      - name: Run MATLAB Command
+          
+      - name: Run MATLAB tests
         run: |
           source $ISSM_DIR/etc/environment.sh
-          LD_PRELOAD=/lib/x86_64-linux-gnu/libstdc++.so.6 run-matlab-command "matlab_ci"
+          LD_PRELOAD=/lib/x86_64-linux-gnu/libstdc++.so.6:$ISSM_DIR/externalpackages/petsc/install/lib/libmpi.so:$ISSM_DIR/externalpackages/petsc/install/lib/libmpifort.so run-matlab-command "matlab_ci"
 
       - run: echo "This job's status is ${{ job.status }}."