ci: remove redundant or duplicate jobs (#23927)

* remove redundant apple job

openvino gpu and cpu test can share the same build and machine

Update build-rpc.yml

Update build-openvino.yml

cpu any doesnt make sense as we have an arm job already, so do high perf on both x86 and arm

remove duplicate x86 vulkan

combine backend sampling

Update server.yml

run server on arm as windows is x86

* emdawn on one machine only

* fix openvino, remove cpu tag as we dont have many x64 machines with that tag

.github/workflows/build-apple.yml

@@ -109,40 +109,6 @@ jobs:
           cd build
           ctest -L main --verbose --timeout 900
 
-  macos-latest-ios:
-    runs-on: macos-latest
-
-    steps:
-      - name: Clone
-        id: checkout
-        uses: actions/checkout@v6
-
-      # TODO: this likely does not do anything - if yes, remove it
-      - name: ccache
-        uses: ggml-org/ccache-action@v1.2.21
-        with:
-          key: apple-ios
-          evict-old-files: 1d
-          save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
-
-      - name: Build
-        id: cmake_build
-        run: |
-          sysctl -a
-          cmake -B build -G Xcode \
-            -DGGML_METAL_USE_BF16=ON \
-            -DGGML_METAL_EMBED_LIBRARY=ON \
-            -DLLAMA_BUILD_APP=OFF \
-            -DLLAMA_BUILD_COMMON=OFF \
-            -DLLAMA_BUILD_EXAMPLES=OFF \
-            -DLLAMA_BUILD_TOOLS=OFF \
-            -DLLAMA_BUILD_TESTS=OFF \
-            -DLLAMA_BUILD_SERVER=OFF \
-            -DCMAKE_SYSTEM_NAME=iOS \
-            -DCMAKE_OSX_DEPLOYMENT_TARGET=14.0 \
-            -DCMAKE_XCODE_ATTRIBUTE_DEVELOPMENT_TEAM=ggml
-          cmake --build build --config Release -j $(sysctl -n hw.logicalcpu) -- CODE_SIGNING_ALLOWED=NO
-
   macos-latest-ios-xcode:
     runs-on: macos-latest
 

.github/workflows/build-openvino.yml

@@ -35,24 +35,12 @@ env:
 
 jobs:
   ubuntu-24-openvino:
-    name: ubuntu-24-openvino-${{ matrix.openvino_device }}
+    runs-on: [self-hosted, Linux, Intel, OpenVINO]
 
     concurrency:
-      group: openvino-${{ matrix.variant }}-${{ github.head_ref || github.ref }}
+      group: openvino-gpu-${{ github.head_ref || github.ref }}
       cancel-in-progress: false
 
-    strategy:
-      matrix:
-        include:
-          - variant: cpu
-            runner: '"ubuntu-24.04"'
-            openvino_device: "CPU"
-          - variant: gpu
-            runner: '["self-hosted","Linux","Intel","OpenVINO"]'
-            openvino_device: "GPU"
-
-    runs-on: ${{ fromJSON(matrix.runner) }}
-
     env:
       # Sync versions in build-openvino.yml, build-self-hosted.yml, release.yml, build-cache.yml, .devops/openvino.Dockerfile
       OPENVINO_VERSION_MAJOR: "2026.0"
@@ -63,14 +51,6 @@ jobs:
         id: checkout
         uses: actions/checkout@v6
 
-      - name: ccache
-        if: runner.environment == 'github-hosted'
-        uses: ggml-org/ccache-action@v1.2.21
-        with:
-          key: openvino-ubuntu-24.04-${{ matrix.variant }}-no-preset-v1
-          evict-old-files: 1d
-          save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
-
       - name: Dependencies
         id: depends
         run: |
@@ -78,16 +58,7 @@ jobs:
           sudo apt-get install -y build-essential libssl-dev libtbb12 cmake ninja-build python3-pip
           sudo apt-get install -y ocl-icd-opencl-dev opencl-headers opencl-clhpp-headers intel-opencl-icd
 
-      - name: Use OpenVINO Toolkit Cache
-        if: runner.environment == 'github-hosted'
-        uses: actions/cache@v5
-        id: cache-openvino
-        with:
-          path: ./openvino_toolkit
-          key: cache-gha-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
@@ -109,12 +80,17 @@ jobs:
             -DGGML_OPENVINO=ON
           time cmake --build build/ReleaseOV --config Release -j $(nproc)
 
-      - name: Test
-        id: cmake_test
+      - name: Test (CPU)
+        id: cmake_test_cpu
         # TODO: fix and re-enable the `test-llama-archs` test below
         run: |
           cd ${{ github.workspace }}
-          if [ "${{ matrix.openvino_device }}" = "GPU" ]; then
-            export GGML_OPENVINO_DEVICE=GPU
-          fi
+          ctest --test-dir build/ReleaseOV -L main -E "test-llama-archs" --verbose --timeout 2000
+
+      - name: Test (GPU)
+        id: cmake_test_gpu
+        # TODO: fix and re-enable the `test-llama-archs` test below
+        run: |
+          cd ${{ github.workspace }}
+          export GGML_OPENVINO_DEVICE=GPU
           ctest --test-dir build/ReleaseOV -L main -E "test-llama-archs" --verbose --timeout 2000

.github/workflows/build-rpc.yml

@@ -34,8 +34,8 @@ env:
   LLAMA_ARG_LOG_TIMESTAMPS: 1
 
 jobs:
-  ubuntu-latest-rpc:
-    runs-on: ubuntu-latest
+  ubuntu-24-rpc:
+    runs-on: ${{ 'ubuntu-24.04-arm' || 'ubuntu-24.04' }}
 
     continue-on-error: true
 

.github/workflows/build-self-hosted.yml

@@ -210,7 +210,7 @@ jobs:
           GG_BUILD_WEBGPU=1 GG_BUILD_WEBGPU_DAWN_PREFIX="$GITHUB_WORKSPACE/dawn" \
             bash ./ci/run.sh ~/results/llama.cpp ~/mnt/llama.cpp
 
-  gpu-vulkan:
+  gpu-vulkan-apple:
     runs-on: [self-hosted, macOS, ARM64]
 
     steps:
@@ -261,7 +261,7 @@ jobs:
           # a valid python environment for testing
           LLAMA_FATAL_WARNINGS=OFF GG_BUILD_NINJA=1 GG_BUILD_VULKAN=1 GG_BUILD_LOW_PERF=1 ./ci/run.sh ./results/llama.cpp ./mnt/llama.cpp
 
-  cpu-openvino-low-perf:
+  gpu-openvino-low-perf:
     runs-on: [self-hosted, Linux, Intel, OpenVINO]
 
     concurrency:
@@ -297,8 +297,8 @@ jobs:
           source ./openvino_toolkit/setupvars.sh
           GG_BUILD_OPENVINO=1 GGML_OPENVINO_DEVICE=GPU GG_BUILD_LOW_PERF=1 bash ./ci/run.sh ~/results/llama.cpp ~/mnt/llama.cpp
 
-  cpu-any-low-perf:
-    runs-on: [self-hosted, CPU]
+  cpu-x64-high-perf:
+    runs-on: [self-hosted, X64]
 
     steps:
       - name: Clone
@@ -308,22 +308,9 @@ jobs:
       - name: Test
         id: ggml-ci
         run: |
-          LLAMA_ARG_THREADS=$(nproc) GG_BUILD_LOW_PERF=1 bash ./ci/run.sh ~/results/llama.cpp ~/mnt/llama.cpp
+          LLAMA_ARG_THREADS=$(nproc) GG_BUILD_HIGH_PERF=1 GG_BUILD_EXTRA_TESTS_0=1 bash ./ci/run.sh ~/results/llama.cpp ~/mnt/llama.cpp
 
-  cpu-any-high-perf:
-    runs-on: [self-hosted, CPU]
-
-    steps:
-      - name: Clone
-        id: checkout
-        uses: actions/checkout@v6
-
-      - name: Test
-        id: ggml-ci
-        run: |
-          LLAMA_ARG_THREADS=$(nproc) GG_BUILD_HIGH_PERF=1 GG_BUILD_NO_SVE=1 GG_BUILD_NO_BF16=1 GG_BUILD_EXTRA_TESTS_0=1 bash ./ci/run.sh ~/results/llama.cpp ~/mnt/llama.cpp
-
-  cpu-arm64-graviton4:
+  cpu-arm64-high-perf-graviton4:
     runs-on: ah-ubuntu_22_04-c8g_8x
 
     steps:
@@ -360,7 +347,7 @@ jobs:
       - name: Test
         id: ggml-ci
         run: |
-          LLAMA_ARG_THREADS=$(nproc) GG_BUILD_NO_BF16=1 GG_BUILD_EXTRA_TESTS_0=1 bash ./ci/run.sh ~/results/llama.cpp ~/mnt/llama.cpp
+          LLAMA_ARG_THREADS=$(nproc) GG_BUILD_HIGH_PERF=1 GG_BUILD_NO_BF16=1 GG_BUILD_EXTRA_TESTS_0=1 bash ./ci/run.sh ~/results/llama.cpp ~/mnt/llama.cpp
 
   cpu-arm64-graviton4-kleidiai:
     runs-on: ah-ubuntu_22_04-c8g_8x

.github/workflows/build-vulkan.yml

@@ -36,16 +36,8 @@ env:
   LLAMA_ARG_LOG_TIMESTAMPS: 1
 
 jobs:
-  ubuntu:
-    strategy:
-      matrix:
-        include:
-          - build: 'x64'
-            os: ubuntu-24.04
-          - build: 'arm64'
-            os: ubuntu-24.04-arm
-
-    runs-on: ${{ matrix.os }}
+  ubuntu-arm64:
+    runs-on: ubuntu-24.04-arm
 
     steps:
       - name: Clone
@@ -63,7 +55,7 @@ jobs:
       - name: ccache
         uses: ggml-org/ccache-action@v1.2.21
         with:
-          key: vulkan-${{ matrix.os }}-new
+          key: vulkan-ubuntu-24.04-arm-new
           variant: ccache
           evict-old-files: 1d
           save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}

.github/workflows/build-webgpu.yml

@@ -130,15 +130,7 @@ jobs:
           ctest -L main -E test-backend-ops --verbose --timeout 900
 
   ubuntu-wasm:
-    strategy:
-      matrix:
-        include:
-          - build: 'x64'
-            os: ubuntu-24.04
-          - build: 'arm64'
-            os: ubuntu-24.04-arm
-
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-24.04-arm
 
     steps:
       - name: Clone
@@ -148,7 +140,7 @@ jobs:
       - name: ccache
         uses: ggml-org/ccache-action@v1.2.21
         with:
-          key: webgpu-${{ matrix.os }}-wasm
+          key: webgpu-ubuntu-24.04-arm-wasm
           evict-old-files: 1d
           save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
 

.github/workflows/server.yml

@@ -55,21 +55,7 @@ concurrency:
 
 jobs:
   ubuntu:
-    runs-on: ubuntu-24.04
-
-    name: ubuntu (${{ matrix.wf_name }})
-    strategy:
-      matrix:
-        build_type: [Release]
-        wf_name: ["default"]
-        include:
-          - build_type: Release
-            extra_args: ""
-            wf_name:    "default"
-          - build_type: Release
-            extra_args: "LLAMA_ARG_BACKEND_SAMPLING=1"
-            wf_name:    "backend-sampling"
-      fail-fast: false
+    runs-on: ubuntu-24.04-arm
 
     steps:
       - name: Dependencies
@@ -96,7 +82,7 @@ jobs:
       - name: ccache
         uses: ggml-org/ccache-action@v1.2.21
         with:
-          key: server-ubuntu-24.04-x64
+          key: server-ubuntu-24.04-arm
           evict-old-files: 1d
           save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
 
@@ -105,7 +91,7 @@ jobs:
         run: |
           cmake -B build \
             -DGGML_SCHED_NO_REALLOC=ON
-          cmake --build build --config ${{ matrix.build_type }} -j $(nproc) --target llama-server
+          cmake --build build --config Release -j $(nproc) --target llama-server
 
       - name: Python setup
         id: setup_python
@@ -116,18 +102,32 @@ jobs:
 
       - name: Tests
         id: server_integration_tests
-        if: ${{ (!matrix.disabled_on_pr || !github.event.pull_request) }}
+        if: ${{ !github.event.pull_request }}
         run: |
           cd tools/server/tests
-          export ${{ matrix.extra_args }}
           pytest -v -x -m "not slow"
 
       - name: Slow tests
         id: server_integration_tests_slow
-        if: ${{ (github.event.schedule || github.event.inputs.slow_tests == 'true') && matrix.build_type == 'Release' }}
+        if: ${{ github.event.schedule || github.event.inputs.slow_tests == 'true' }}
         run: |
           cd tools/server/tests
-          export ${{ matrix.extra_args }}
+          SLOW_TESTS=1 pytest -v -x
+
+      - name: Tests (Backend sampling)
+        id: server_integration_tests_backend_sampling
+        if: ${{ !github.event.pull_request }}
+        run: |
+          cd tools/server/tests
+          export LLAMA_ARG_BACKEND_SAMPLING=1
+          pytest -v -x -m "not slow"
+
+      - name: Slow tests (Backend sampling)
+        id: server_integration_tests_slow_backend_sampling
+        if: ${{ github.event.schedule || github.event.inputs.slow_tests == 'true' }}
+        run: |
+          cd tools/server/tests
+          export LLAMA_ARG_BACKEND_SAMPLING=1
           SLOW_TESTS=1 pytest -v -x
 
   windows:
@@ -169,7 +169,7 @@ jobs:
 
       - name: Tests
         id: server_integration_tests
-        if: ${{ !matrix.disabled_on_pr || !github.event.pull_request }}
+        if: ${{ !github.event.pull_request }}
         run: |
           cd tools/server/tests
           $env:PYTHONIOENCODING = ":replace"
@@ -177,7 +177,7 @@ jobs:
 
       - name: Slow tests
         id: server_integration_tests_slow
-        if: ${{ (github.event.schedule || github.event.inputs.slow_tests == 'true') && matrix.build_type == 'Release' }}
+        if: ${{ github.event.schedule || github.event.inputs.slow_tests == 'true' }}
         run: |
           cd tools/server/tests
           $env:SLOW_TESTS = "1"