[CI] Changed compilation and ctest commands

.github/workflows/macos-linux-namespace.yml

@@ -1,4 +1,4 @@
-name: MacOS
+name: MacOS-Linux-Namespace
 
 # https://www.jeffgeerling.com/blog/2020/running-github-actions-workflow-on-schedule-and-other-events
 on:
@@ -18,6 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest", "macos-latest"]
+        build_type: [Release]
 
     steps:
     - name: Checkout repository
@@ -95,10 +96,20 @@ jobs:
         cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/tmp/usr/local -DCMAKE_VERBOSE_MAKEFILE=ON -DENABLE_VISP_NAMESPACE=ON -DENABLE_EXPLICIT_KEYWORD=ON -DVISP_BUILD_DEPRECATED_FUNCTIONS=OFF
         cat ViSP-third-party.txt
 
+    - name: Determine number of processor on Ubuntu
+      if: matrix.os == 'ubuntu-latest'
+      run: |
+        echo "NPROC=$(nproc)" >> $GITHUB_ENV
+
+    - name: Determine number of processor on MacOS
+      if: matrix.os == 'macos-latest'
+      run: |
+        echo "NPROC=$(sysctl -n hw.logicalcpu)" >> $GITHUB_ENV
+
     - name: Compile
       working-directory: build
-      run: make -j$(sysctl -n hw.logicalcpu) install
+      run: make -j${NPROC} install
 
     - name: Run unit tests
       working-directory: build
-      run: ctest -j$(sysctl -n hw.logicalcpu) --output-on-failure -V
+      run: ctest -j${NPROC} --output-on-failure -V