Run unit tests with OpenMP in CI

.github/actions/linux-build/action.yml

@@ -1,5 +1,5 @@
 name: "Linux Build"
-description: "Build the C++ library on Linux."
+description: "Build the C++ library on Linux. Produces artifact build-cpp-linux-$compiler-$version-$config."
 inputs:
   config:
     description: "Configuration to build (Release or Debug, see CMAKE_BUILD_TYPE)"
@@ -14,19 +14,19 @@ inputs:
     required: true
     default: "latest"
   optional-dependencies:
-    description: "Build the library with optional dependencies (ON or OFF)"
+    description: "Build the library with optional dependencies (ON or OFF, default ON). If OFF, adds `-nodep` to the artifact name"
     required: false
     default: "ON"
   coverage:
-    description: "Turn coverage on (ON or OFF)"
+    description: "Turn coverage on (ON or OFF, default OFF)"
     required: false
     default: "OFF"
   sanitize-ub:
-    description: "Turn on UB sanitzer (ON or OFF)"
+    description: "Turn on UB sanitzer (ON or OFF, default OFF)"
     required: false
     default: "OFF"
   sanitize-addr:
-    description: "Turn on address sanitzer (ON or OFF)"
+    description: "Turn on address sanitzer (ON or OFF, default OFF)"
     required: false
     default: "OFF"
   build-tests:
@@ -37,6 +37,10 @@ inputs:
     description: "Build benchmarks"
     required: false
     default: "OFF"
+  openmp:
+    description: "Enable Multithreading with OpenMP (ON or OFF, default OFF). If ON, adds `-omp` to the name of the artifact."
+    required: false
+    default: "OFF"
 runs:
   using: "composite"
   steps:
@@ -85,7 +89,7 @@ runs:
           exit 1
         fi
         mkdir -p build && cd build
-        cmake -DCMAKE_BUILD_TYPE=${{ inputs.config }} -DMEMILIO_BUILD_TESTS=${{ inputs.build-tests }} -DMEMILIO_BUILD_BENCHMARKS=${{ inputs.build-benchmarks }} -DMEMILIO_TEST_COVERAGE=${{ inputs.coverage }} -DMEMILIO_SANITIZE_ADDRESS=${{ inputs.sanitize-addr }} -DMEMILIO_SANITIZE_UNDEFINED=${{ inputs.sanitize-ub }} -DMEMILIO_USE_BUNDLED_JSONCPP=${{ inputs.optional-dependencies }} ..
+        cmake -DCMAKE_BUILD_TYPE=${{ inputs.config }} -DMEMILIO_BUILD_TESTS=${{ inputs.build-tests }} -DMEMILIO_BUILD_BENCHMARKS=${{ inputs.build-benchmarks }} -DMEMILIO_TEST_COVERAGE=${{ inputs.coverage }} -DMEMILIO_SANITIZE_ADDRESS=${{ inputs.sanitize-addr }} -DMEMILIO_SANITIZE_UNDEFINED=${{ inputs.sanitize-ub }} -DMEMILIO_USE_BUNDLED_JSONCPP=${{ inputs.optional-dependencies }} -DMEMILIO_ENABLE_OPENMP=${{ inputs.openmp }} ..
         make -j4
     - name: create build dir archive
       shell: bash
@@ -95,6 +99,7 @@ runs:
     - name: Upload built directory
       uses: actions/upload-artifact@v3
       with:
-        name: build-cpp-linux-${{ inputs.compiler }}-${{ inputs.version }}-${{ inputs.config }}-${{ inputs.optional-dependencies == 'ON' && 'full' || 'part'}}
+        #artifacts in one pipeline must have a different name, so options must add a suffix to the artifact name if different values are used in the same pipeline
+        name: build-cpp-linux-${{ inputs.compiler }}-${{ inputs.version }}-${{ inputs.config }}${{ inputs.optional-dependencies == 'OFF' && '-nodep' || ''}}${{ inputs.openmp == 'ON' && '-omp' || ''}}
         path: cpp/build.tar.gz
         retention-days: 1

.github/actions/linux-test/action.yml

@@ -8,6 +8,10 @@ inputs:
     description: "Create coverage report (ON or OFF)"
     required: false
     default: "OFF"
+  num-repeat:
+    description: "Repeat tests, e.g. to catch random failures like race conditions."
+    required: false
+    default: "1"
 runs:
   using: "composite"
   steps:
@@ -34,7 +38,7 @@ runs:
       run: |
         cd cpp/build/bin
         sudo chmod a+x memilio-test
-        ./memilio-test  --gtest_output="xml:report.xml"
+        ./memilio-test  --gtest_output="xml:report.xml" --gtest_repeat=${{ inputs.num-repeat }}
     - name: Compute code coverage
       shell: bash
       # compute code coverage

.github/actions/windows-build/action.yml

@@ -1,5 +1,5 @@
 name: "Build MSVC"
-description: "Build memilio c++ library using MSVC on Windows"
+description: "Build memilio c++ library using MSVC on Windows. Creates artifact build-windows-msvc-$version-$config."
 inputs:
   config:
     description: "Configuration to build (Release or Debug, see CMAKE_BUILD_TYPE)"
@@ -10,7 +10,7 @@ inputs:
     required: true
     default: "latest"
   optional-dependencies:
-    description: "Build the library with optional dependencies (ON or OFF)"
+    description: "Build the library with optional dependencies (ON or OFF). If OFF, adds `-nodep` to the artifact name"
     required: false
     default: "ON"
 runs:
@@ -53,6 +53,7 @@ runs:
     - name: Upload built binary files
       uses: actions/upload-artifact@v3
       with:
-        name: build-cpp-windows-msvc-${{ inputs.version }}-${{ inputs.config }}-${{ inputs.optional-dependencies == 'ON' && 'full' || 'part'}}
+        #artifacts in one pipeline must have a different name, so options must add a suffix to the artifact name if different values are used in the same pipeline
+        name: build-cpp-windows-msvc-${{ inputs.version }}-${{ inputs.config }}${{ inputs.optional-dependencies == 'OFF' && '-nodep' || ''}}
         path: cpp/build-win/bin
         retention-days: 1

.github/pull_request_template.md

@@ -13,7 +13,7 @@ Please check our [git workflow](https://github.com/SciCompMod/memilio/wiki/git-w
 - [ ] Every addressed issue is linked (use the "Closes #ISSUE" keyword below)
 - [ ] New code adheres to [coding guidelines](https://github.com/SciCompMod/memilio/wiki/Coding-guidelines)
 - [ ] No large data files have been added (files should in sum not exceed 100 KB, avoid PDFs, Word docs, etc.)
-- [ ] Tests are added for new functionality and a local test run was successful
+- [ ] Tests are added for new functionality and a local test run was successful (with and without OpenMP)
 - [ ] Appropriate **documentation** for new functionality has been added (Doxygen in the code and Markdown files if necessary)
 - [ ] Proper attention to licenses, especially no new third-party software with conflicting license has been added
 - [ ] (For ABM development) Checked [benchmark results](https://github.com/SciCompMod/memilio/wiki/Agent-Based-Model-Development)

.github/workflows/main.yml

@@ -62,6 +62,18 @@ jobs:
           config: Release
           optional-dependencies: OFF
 
+  build-cpp-gcc-openmp:
+    if: github.event.pull_request.draft == false
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/linux-build
+        with:
+          compiler: gcc
+          version: latest
+          config: Release
+          openmp: ON
+
   build-cpp-msvc:
     if: github.event.pull_request.draft == false
     strategy:
@@ -110,18 +122,32 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/linux-test
         with:
-          build-artifact: build-cpp-linux-${{ matrix.compiler }}-${{ matrix.version }}-${{ matrix.config }}-full
+          build-artifact: build-cpp-linux-${{ matrix.compiler }}-${{ matrix.version }}-${{ matrix.config }}
           coverage: ${{ (matrix.compiler == 'gcc' && matrix.version == 'latest' && matrix.config == 'Debug') && 'ON' || 'OFF' }}
 
-  test-linux-no-optional-deps:
+  test-cpp-gcc-no-optional-deps:
     if: github.event.pull_request.draft == false
     needs: build-cpp-gcc-no-optional-deps
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/linux-test
         with:
-          build-artifact: build-cpp-linux-gcc-latest-Release-part
+          build-artifact: build-cpp-linux-gcc-latest-Release-nodep
+
+  test-cpp-gcc-openmp:
+    if: github.event.pull_request.draft == false
+    needs: build-cpp-gcc-openmp
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    env:
+      OMP_NUM_THREADS: 4
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/linux-test
+        with:
+          build-artifact: build-cpp-linux-gcc-latest-Release-omp
+          num-repeat: 10
 
   test-cpp-msvc:
     if: github.event.pull_request.draft == false
@@ -140,17 +166,17 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/windows-test
         with:
-          build-artifact: build-cpp-windows-msvc-${{ matrix.version }}-${{ matrix.config }}-full
+          build-artifact: build-cpp-windows-msvc-${{ matrix.version }}-${{ matrix.config }}
 
-  test-windows-no-optional-deps:
+  test-cpp-msvc-no-optional-deps:
     if: github.event.pull_request.draft == false
     needs: build-cpp-msvc-no-optional-deps
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/windows-test
         with:
-          build-artifact: build-cpp-windows-msvc-latest-Release-part
+          build-artifact: build-cpp-windows-msvc-latest-Release-nodep
 
   run_examples-cpp-gcc_clang:
     if: github.event.pull_request.draft == false
@@ -170,7 +196,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/linux-run_examples
         with:
-          build-artifact: build-cpp-linux-${{ matrix.compiler }}-${{ matrix.version }}-${{ matrix.config }}-full
+          build-artifact: build-cpp-linux-${{ matrix.compiler }}-${{ matrix.version }}-${{ matrix.config }}
 
   run_examples-cpp-msvc:
     if: github.event.pull_request.draft == false
@@ -189,7 +215,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/windows-run_examples
         with:
-          build-artifact: build-cpp-windows-msvc-${{ matrix.version }}-${{ matrix.config }}-full
+          build-artifact: build-cpp-windows-msvc-${{ matrix.version }}-${{ matrix.config }}
 
   build-py-generation:
     if: github.event.pull_request.draft == false