ci: merge LuxCUDA testing scripts

.buildkite/pipeline.yml

@@ -8,6 +8,7 @@ steps:
           diff: ".buildkite/scripts/diff.sh $BUILDKITE_COMMIT"
           interpolation: false
           watch:
+            # Core Lux Testing
             - path:
                 - "src/"
                 - "ext/"
@@ -43,6 +44,14 @@ steps:
                 agents:
                   queue: "juliagpu"
 
+            # LuxCUDA Testing
+            - path:
+                - "lib/LuxCUDA/"
+              config:
+                command: "buildkite-agent pipeline upload .buildkite/testing_luxcuda.yml"
+                agents:
+                  queue: "juliagpu"
+
   - label: "Triggering Pipelines (Main Branch / Tag)"
     if: build.branch == "main" || build.tag != null
     agents:
@@ -51,3 +60,6 @@ steps:
       buildkite-agent pipeline upload .buildkite/testing.yml
       buildkite-agent pipeline upload .buildkite/documentation.yml
       buildkite-agent pipeline upload .buildkite/benchmarks.yml
+
+      # Subpackage testing
+      buildkite-agent pipeline upload .buildkite/testing_luxcuda.yml

.buildkite/testing_luxcuda.yml

@@ -0,0 +1,29 @@
+steps:
+  - group: ":julia: CUDA GPU"
+    steps:
+      - label: ":julia: Julia: {{matrix.julia}}"
+        plugins:
+          - JuliaCI/julia#v1:
+              version: "{{matrix.julia}}"
+          - JuliaCI/julia-coverage#v1:
+              codecov: true
+              dirs:
+                - lib/LuxCUDA/src
+        command: |
+          julia --color=yes --code-coverage=user --depwarn=yes --project=lib/LuxCUDA -e '
+            import Pkg;
+            Pkg.Registry.update();
+            Pkg.instantiate();
+            Pkg.test(; coverage="user")'
+        agents:
+          queue: "juliagpu"
+          cuda: "*"
+        if: build.message !~ /\[skip tests\]/
+        timeout_in_minutes: 60
+        matrix:
+          setup:
+            julia:
+              - "1"
+
+env:
+  SECRET_CODECOV_TOKEN: "jQ0BMTQgyZx7QGyU0Q2Ec7qB9mtE2q/tDu0FsfxvEG7/zOAGvXkyXrzIFFOQxvDoFcP+K2+hYZKMxicYdNqzr5wcxu505aNGN2GM3wyegAr+hO6q12bCFYx6qXzU9FLCCdeqINqn9gUSSOlGtWNFrbAlrTyz/D4Yo66TqBDzvaLL63FMnhCLaXW/zJt3hNuEAJaPY2O6Ze1rX2WZ3Y+i+s3uQ8aLImtoCJhPe8CRx+OhuYiTzGhynFfGntZ0738/1RN4gNM0S/hTC4gLE7XMVBanJpGh32rFaiDwW4zAyXKBrDkL3QA3MS1RvLTJxGJ085S16hCk0C4ddAhZCvIM9Q==;U2FsdGVkX1+bXdFeKMs5G79catOCyby2n07A2fg0FjVAvrjQLZ0yfvDS4paJiFikLkodho0khz2YALKb2Y0K6w=="

.github/workflows/CI.yml

@@ -1,4 +1,4 @@
-name: CI
+name: CI (Lux)
 on:
   pull_request:
     branches:
@@ -155,34 +155,5 @@ jobs:
           verbose: true
           fail_ci_if_error: true
 
-  invalidations:
-    # Only run on PRs to the default branch.
-    # In the PR trigger above branches can be specified only explicitly whereas this check should work for master, main, or any other default branch
-    if: github.base_ref == github.event.repository.default_branch
-    runs-on: ubuntu-latest
-    steps:
-      - uses: julia-actions/setup-julia@v2
-        with:
-          version: "1"
-      - uses: actions/checkout@v4
-      - uses: julia-actions/julia-buildpkg@v1
-      - uses: julia-actions/julia-invalidations@v1
-        id: invs_pr
-
-      - uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.repository.default_branch }}
-      - uses: julia-actions/julia-buildpkg@v1
-      - uses: julia-actions/julia-invalidations@v1
-        id: invs_default
-
-      - name: Report invalidation counts
-        run: |
-          echo "Invalidations on default branch: ${{ steps.invs_default.outputs.total }} (${{ steps.invs_default.outputs.deps }} via deps)" >> $GITHUB_STEP_SUMMARY
-          echo "This branch: ${{ steps.invs_pr.outputs.total }} (${{ steps.invs_pr.outputs.deps }} via deps)" >> $GITHUB_STEP_SUMMARY
-      - name: Check if the PR does increase number of invalidations
-        if: steps.invs_pr.outputs.total > steps.invs_default.outputs.total
-        run: exit 1
-
 env:
   BACKEND_GROUP: "CPU"

.github/workflows/CI_LuxCUDA.yml

@@ -0,0 +1,80 @@
+name: CI (LuxCUDA)
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - "lib/LuxCUDA/**"
+      - ".github/workflows/CI_LuxCUDA.yml"
+  push:
+    branches:
+      - main
+
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: only if it is a pull request build.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - "1"
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
+        with:
+          version: ${{ matrix.version }}
+      - uses: actions/cache@v4
+        env:
+          cache-name: cache-artifacts
+        with:
+          path: ~/.julia/artifacts
+          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-test-${{ env.cache-name }}-
+            ${{ runner.os }}-test-
+            ${{ runner.os }}-
+      - name: "Install Dependencies and Run Tests"
+        run: |
+          import Pkg
+          Pkg.Registry.update()
+          Pkg.instantiate()
+          Pkg.test(; coverage="user")
+        shell: julia --color=yes --code-coverage=user --depwarn=yes --project=lib/LuxCUDA {0}
+      - uses: julia-actions/julia-processcoverage@v1
+      - uses: codecov/codecov-action@v4
+        with:
+          files: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}
+          verbose: true
+          fail_ci_if_error: true
+
+  downgrade:
+    if: ${{ !contains(github.event.head_commit.message, '[skip tests]') && github.base_ref == github.event.repository.default_branch }}
+    name: Downgrade Julia 1.10
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
+        with:
+          version: "1.10"
+      - uses: julia-actions/julia-downgrade-compat@v1
+      - name: "Install Dependencies and Run Tests"
+        run: |
+          import Pkg
+          Pkg.Registry.update()
+          Pkg.instantiate()
+          Pkg.test(; coverage="user")
+        shell: julia --color=yes --code-coverage=user --depwarn=yes --project=lib/LuxCUDA {0}
+      - uses: julia-actions/julia-processcoverage@v1
+      - uses: codecov/codecov-action@v4
+        with:
+          files: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}
+          verbose: true
+          fail_ci_if_error: true