Add multi-GPU test workflow and rename single-GPU workflow

- Rename tesla-k80-tests.yml to tesla-k80-single-gpu-tests.yml for clarity
- Add new tesla-k80-multi-gpu-tests.yml workflow for large models
- Add multi-gpu profile to test/config/models.yaml with gemma3:27b and gpt-oss:20b
- Multi-GPU workflow includes GPU count verification and weekly schedule
- Profile-specific validation allows multi-GPU splits for large models
- Separate workflows optimize CI efficiency: quick tests vs. thorough tests

.github/workflows/tesla-k80-single-gpu-tests.yml

@@ -0,0 +1,87 @@
+name: Tesla K80 Single-GPU Tests
+
+on:
+  workflow_dispatch: # Manual trigger only
+
+jobs:
+  test:
+    runs-on: self-hosted
+
+    timeout-minutes: 60
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Verify ollama binary exists
+        run: |
+          if [ ! -f ./ollama ]; then
+            echo "Error: ollama binary not found. Please run the build workflow first."
+            exit 1
+          fi
+          ls -lh ollama
+
+      - name: Build test-runner
+        run: |
+          cd cmd/test-runner
+          go mod init github.com/ollama/ollama/cmd/test-runner || true
+          go mod tidy
+          go build -o ../../test-runner .
+          cd ../..
+          ls -lh test-runner
+
+      - name: Validate test configuration
+        run: |
+          ./test-runner validate --config test/config/quick.yaml
+
+      - name: Run quick tests
+        run: |
+          ./test-runner run --profile quick --config test/config/quick.yaml --output test-report-quick --verbose
+        timeout-minutes: 10
+
+      - name: Check quick test results
+        run: |
+          if ! jq -e '.summary.failed == 0' test-report-quick.json; then
+            echo "Quick tests failed!"
+            jq '.results[] | select(.status == "FAILED")' test-report-quick.json
+            exit 1
+          fi
+          echo "Quick tests passed!"
+
+      - name: Upload quick test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: quick-test-results
+          path: |
+            test-report-quick.json
+            test-report-quick.md
+            ollama.log
+          retention-days: 7
+
+      - name: Run full tests (if quick tests passed)
+        if: success()
+        run: |
+          ./test-runner run --profile full --config test/config/models.yaml --output test-report-full --verbose
+        timeout-minutes: 45
+
+      - name: Check full test results
+        if: success()
+        run: |
+          if ! jq -e '.summary.failed == 0' test-report-full.json; then
+            echo "Full tests failed!"
+            jq '.results[] | select(.status == "FAILED")' test-report-full.json
+            exit 1
+          fi
+          echo "All tests passed!"
+
+      - name: Upload full test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: full-test-results
+          path: |
+            test-report-full.json
+            test-report-full.md
+            ollama.log
+          retention-days: 14