more parallel jobs on macos ci

Author: nihui

.github/workflows/CI.yml

@@ -83,7 +83,7 @@ jobs:
             -DVulkan_INCLUDE_DIR=`pwd`/../vulkansdk-macos-1.2.162.0/MoltenVK/include \
             -DVulkan_LIBRARY=`pwd`/../vulkansdk-macos-1.2.162.0/MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/libMoltenVK.a \
             ../src
-        cmake --build . -j 2
+        cmake --build . -j 3
     - name: build-arm64
       run: |
         export VULKAN_SDK=`pwd`/vulkansdk-macos-1.2.162.0/macOS
@@ -92,4 +92,4 @@ jobs:
             -DVulkan_INCLUDE_DIR=`pwd`/../vulkansdk-macos-1.2.162.0/MoltenVK/include \
             -DVulkan_LIBRARY=`pwd`/../vulkansdk-macos-1.2.162.0/MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/libMoltenVK.a \
             ../src
-        cmake --build . -j 2
+        cmake --build . -j 3

.github/workflows/release.yml

@@ -92,7 +92,7 @@ jobs:
         mkdir build-x86_64 && cd build-x86_64
         cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install -DCMAKE_OSX_ARCHITECTURES="x86_64" \
             -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 2
+        cmake --build . -j 3
         cmake --build . --target install
     - name: build-arm64
       if: steps.cache-openmp.outputs.cache-hit != 'true'
@@ -101,7 +101,7 @@ jobs:
         mkdir build-arm64 && cd build-arm64
         cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install -DCMAKE_OSX_ARCHITECTURES="arm64" \
             -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 2
+        cmake --build . -j 3
         cmake --build . --target install
     - name: merge-fat-library
       if: steps.cache-openmp.outputs.cache-hit != 'true'
@@ -161,7 +161,7 @@ jobs:
             -DVulkan_INCLUDE_DIR=`pwd`/../vulkansdk-macos-1.2.162.0/MoltenVK/include \
             -DVulkan_LIBRARY=`pwd`/../vulkansdk-macos-1.2.162.0/MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/libMoltenVK.a \
             ../src
-        cmake --build . -j 2
+        cmake --build . -j 3
     - name: build-arm64
       run: |
         export VULKAN_SDK=`pwd`/vulkansdk-macos-1.2.162.0/macOS
@@ -174,7 +174,7 @@ jobs:
             -DVulkan_INCLUDE_DIR=`pwd`/../vulkansdk-macos-1.2.162.0/MoltenVK/include \
             -DVulkan_LIBRARY=`pwd`/../vulkansdk-macos-1.2.162.0/MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/libMoltenVK.a \
             ../src
-        cmake --build . -j 2
+        cmake --build . -j 3
     - name: package
       run: |
         mkdir -p ${{ env.PACKAGENAME }}