Add OV CI cache

.github/actions/linux-setup-openvino/action.yml

@@ -0,0 +1,30 @@
+name: "Linux - Setup OpenVINO Toolkit"
+description: "Setup OpenVINO Toolkit for Linux"
+inputs:
+  path:
+    description: "Installation path"
+    required: true
+  version_major:
+    description: "OpenVINO major version (e.g., 2025.2)"
+    required: true
+  version_full:
+    description: "OpenVINO full version (e.g., 2025.2.0.19140.c01cd93e24d)"
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - name: Setup OpenVINO Toolkit
+      id: setup
+      uses: ./.github/actions/unarchive-tar
+      with:
+        url: https://storage.openvinotoolkit.org/repositories/openvino/packages/${{ inputs.version_major }}/linux/openvino_toolkit_ubuntu24_${{ inputs.version_full }}_x86_64.tgz
+        path: ${{ inputs.path }}
+        type: "z"
+        strip: 1
+
+    - name: Install OpenVINO dependencies
+      shell: bash
+      run: |
+        cd ${{ inputs.path }}
+        echo "Y" | sudo -E ./install_dependencies/install_openvino_dependencies.sh

.github/workflows/build-cache.yml

@@ -63,6 +63,39 @@ jobs:
           path: ./spacemit_toolchain
           version: ${{ env.SPACEMIT_IME_TOOLCHAIN_VERSION }}
 
+  ubuntu-24-openvino-cache:
+    runs-on: ubuntu-24.04
+
+    env:
+      # Make sure this is in sync with build.yml
+      OPENVINO_VERSION_MAJOR: "2025.2"
+      OPENVINO_VERSION_FULL: "2025.2.0.19140.c01cd93e24d"
+
+    steps:
+      - name: Clone
+        id: checkout
+        uses: actions/checkout@v4
+
+      - name: Dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libtbb12
+
+      - name: Setup Cache
+        uses: actions/cache@v4
+        id: cache-openvino
+        with:
+          path: ./openvino_toolkit
+          key: openvino-toolkit-v${{ env.OPENVINO_VERSION_FULL }}-${{ runner.os }}
+
+      - name: Setup OpenVINO Toolkit
+        if: steps.cache-openvino.outputs.cache-hit != 'true'
+        uses: ./.github/actions/linux-setup-openvino
+        with:
+          path: ./openvino_toolkit
+          version_major: ${{ env.OPENVINO_VERSION_MAJOR }}
+          version_full: ${{ env.OPENVINO_VERSION_FULL }}
+
   windows-2022-rocm-cache:
     runs-on: windows-2022
 

.github/workflows/build.yml

@@ -740,6 +740,11 @@ jobs:
   ubuntu-24-cmake-openvino:
       runs-on: ubuntu-24.04
 
+      env:
+        # Make sure this is in sync with build-cache.yml
+        OPENVINO_VERSION_MAJOR: "2025.2"
+        OPENVINO_VERSION_FULL: "2025.2.0.19140.c01cd93e24d"
+
       steps:
         - name: Clone
           id: checkout
@@ -754,23 +759,28 @@ jobs:
         - name: Dependencies
           id: depends
           run: |
-            export OPENVINO_VERSION_MAJOR=2025.2
-            export OPENVINO_VERSION_FULL=2025.2.0.19140.c01cd93e24d
             sudo apt-get update
-            sudo apt-get install -y build-essential libcurl4-openssl-dev libtbb12 cmake ninja-build python3-pip curl wget tar
-            sudo mkdir -p /opt/intel
-            wget -O openvino_${OPENVINO_VERSION_MAJOR}.tgz https://storage.openvinotoolkit.org/repositories/openvino/packages/${OPENVINO_VERSION_MAJOR}/linux/openvino_toolkit_ubuntu24_${OPENVINO_VERSION_FULL}_x86_64.tgz
-            tar -xf openvino_${OPENVINO_VERSION_MAJOR}.tgz
-            sudo mv openvino_toolkit_ubuntu24_${OPENVINO_VERSION_FULL}_x86_64 /opt/intel/openvino_${OPENVINO_VERSION_MAJOR}
-            rm openvino_${OPENVINO_VERSION_MAJOR}.tgz
-            cd /opt/intel/openvino_${OPENVINO_VERSION_MAJOR}
-            echo "Y" | sudo -E ./install_dependencies/install_openvino_dependencies.sh && cd -
-            sudo ln -s /opt/intel/openvino_${OPENVINO_VERSION_MAJOR} /opt/intel/openvino
+            sudo apt-get install -y build-essential libcurl4-openssl-dev libtbb12 cmake ninja-build python3-pip
+
+        - name: Use OpenVINO Toolkit Cache
+          uses: actions/cache@v4
+          id: cache-openvino
+          with:
+            path: ./openvino_toolkit
+            key: openvino-toolkit-v${{ env.OPENVINO_VERSION_FULL }}-${{ runner.os }}
+
+        - name: Setup OpenVINO Toolkit
+          if: steps.cache-openvino.outputs.cache-hit != 'true'
+          uses: ./.github/actions/linux-setup-openvino
+          with:
+            path: ./openvino_toolkit
+            version_major: ${{ env.OPENVINO_VERSION_MAJOR }}
+            version_full: ${{ env.OPENVINO_VERSION_FULL }}
 
         - name: Build
           id: cmake_build
           run: |
-            source /opt/intel/openvino/setupvars.sh
+            source ./openvino_toolkit/setupvars.sh
             cmake -B build/ReleaseOV -G Ninja \
               -DCMAKE_BUILD_TYPE=Release \
               -DGGML_OPENVINO=ON