ci : refactor (#23789)

* ci : separate CUDA windows workflow + fix names

* ci : rename workflow

* ci : prefix cache names with workflow name

* ci : rename build.yml -> build-cpu.yml

* ci : cache keys

* ci : fix windows cuda/hip concurrency of release workflow

* ci : fix apple cache names

* ci : add TODOs

* cont : keep just the last cache

* ci : update release concurrency to queue

* ci : move the release trigger to ubuntu-slim

* ci : hip add TODO

* cont : improve words

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

.github/workflows/build-vulkan.yml

@@ -36,7 +36,54 @@ env:
   LLAMA_ARG_LOG_TIMESTAMPS: 1
 
 jobs:
-  ubuntu-24-vulkan-llvmpipe:
+  ubuntu:
+    strategy:
+      matrix:
+        include:
+          - build: 'x64'
+            os: ubuntu-24.04
+          - build: 'arm64'
+            os: ubuntu-24.04-arm
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Clone
+        id: checkout
+        uses: actions/checkout@v6
+
+      - name: ccache
+        uses: ggml-org/ccache-action@v1.2.21
+        with:
+          key: vulkan-${{ matrix.os }}
+          variant: ccache
+          evict-old-files: 1d
+          save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
+
+      - name: Dependencies
+        id: depends
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gcc-14 g++-14 build-essential glslc libvulkan-dev spirv-headers libssl-dev ninja-build
+          echo "CC=gcc-14" >> "$GITHUB_ENV"
+          echo "CXX=g++-14" >> "$GITHUB_ENV"
+
+      - name: Configure
+        id: cmake_configure
+        run: |
+          cmake -B build \
+            -G "Ninja" \
+            -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+            -DGGML_BACKEND_DL=ON \
+            -DGGML_CPU_ALL_VARIANTS=ON \
+            -DGGML_VULKAN=ON
+
+      - name: Build
+        id: cmake_build
+        run: |
+          time cmake --build build -j $(nproc)
+
+  ubuntu-llvmpipe:
     runs-on: ubuntu-24.04
 
     steps:
@@ -47,7 +94,7 @@ jobs:
       - name: ccache
         uses: ggml-org/ccache-action@v1.2.21
         with:
-          key: ubuntu-24-vulkan-llvmpipe
+          key: vulkan-ubuntu-24.04-llvmpipe
           evict-old-files: 1d
           save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}