Update continuous.yml

Author: zfergus

.github/workflows/continuous.yml

@@ -27,7 +27,7 @@ jobs:
             name: Windows
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4.0.0
         with:
           fetch-depth: 10
 
@@ -54,14 +54,13 @@ jobs:
         if: runner.os == 'Windows'
         uses: seanmiddleditch/gha-setup-ninja@master
 
-      # - uses: Jimver/cuda-toolkit@v0.2.5
-      #   id: cuda-toolkit
-      #   with:
-      #     cuda: '11.5.1'
+      - name: Get number of CPU cores
+        uses: SimenB/github-actions-cpu-cores@v2.0.0
+        id: cpu-cores
 
       - name: Cache Build
         id: cache-build
-        uses: actions/cache@v3.0.11
+        uses: actions/cache@v4.0.2
         with:
           path: ${{ env.CACHE_PATH }}
           key: ${{ runner.os }}-${{ matrix.config }}-cache
@@ -94,17 +93,19 @@ jobs:
 
       - name: Build (Linux/macOS)
         if: runner.os != 'Windows'
-        run: cd build; make -j2; ccache --show-stats
+        run: |
+          cmake --build build -j ${{ steps.cpu-cores.outputs.count }}
+          ccache --show-stats
 
       - name: Build (Windows)
         if: runner.os == 'Windows'
         shell: cmd
         run: |
           call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\Common7\Tools\VsDevCmd.bat" -arch=x64
-          cmake --build build -j2 && ccache --show-stats
+          cmake --build build -j ${{ steps.cpu-cores.outputs.count }} && ccache --show-stats
 
       - name: Tests
-        run: cd build; ctest --verbose -j2
+        run: cd build; ctest --verbose -j ${{ steps.cpu-cores.outputs.count }}
 
   build_cuda: # no runtime support for CUDA, so only build on Linux
     name: ${{ matrix.name }} CUDA (${{ matrix.config }})
@@ -121,7 +122,7 @@ jobs:
             name: Linux
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4.0.0
         with:
           fetch-depth: 10
 
@@ -138,9 +139,13 @@ jobs:
           sub-packages: '["nvcc"]'
           method: 'network'
 
+      - name: Get number of CPU cores
+        uses: SimenB/github-actions-cpu-cores@v2.0.0
+        id: cpu-cores
+
       - name: Cache Build
         id: cache-build
-        uses: actions/cache@v3.0.11
+        uses: actions/cache@v4.0.2
         with:
           path: ${{ env.CACHE_PATH }}
           key: ${{ runner.os }}-${{ matrix.config }}-CUDA-cache
@@ -162,8 +167,6 @@ jobs:
             -DCMAKE_BUILD_TYPE=${{ matrix.config }}
 
       - name: Build
-        run: cd build; make -j2; ccache --show-stats
-
-      # GitHub Actions does not support CUDA, so we cannot run the tests.
-      # - name: Tests
-      #   run: cd build; ctest --verbose -j2
+        run: |
+          cmake --build build -j ${{ steps.cpu-cores.outputs.count }}
+          ccache --show-stats