[Dependency] Upgrade to Torch 2.11.0 (#21247)

Co-authored-by: Kangyan Zhou <zky314343421@gmail.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: Baizhou Zhang <sobereddiezhang@gmail.com>
Co-authored-by: b8zhong <b8zhong@users.noreply.github.com>
Co-authored-by: Mick <mickjagger19@icloud.com>

.github/workflows/pr-test-amd.yml

@@ -693,6 +693,7 @@ jobs:
             -e SGLANG_DENOISE_AGG_TOLERANCE=0.3 \
             -e SGLANG_SKIP_CONSISTENCY=1 \
             -e SGLANG_TEST_NUM_INFERENCE_STEPS=5 \
+            -e SGLANG_DIFFUSION_ARTIFACT_DIR=/sglang-checkout/diffusion-failures \
             -e AITER_JIT_DIR=/sgl-data/aiter-kernels \
             -e MIOPEN_USER_DB_PATH=/sgl-data/miopen-cache \
             -e HF_HUB_ENABLE_HF_TRANSFER=1 \
@@ -709,6 +710,15 @@ jobs:
           echo "=== Post-test System Memory Status ==="
           free -h
 
+      - name: Upload diffusion failure artifacts
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: diffusion-failures-amd-1gpu-${{ matrix.part }}-${{ github.run_attempt }}
+          path: diffusion-failures/
+          if-no-files-found: ignore
+          retention-days: 7
+
   multimodal-gen-test-2-gpu-amd:
     name: ${{ format('multimodal-gen-test-2-gpu-amd (linux-{0}-2gpu-sglang, {1})', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325'), matrix.part) }}
     needs: [check-changes, call-gate]
@@ -823,6 +833,7 @@ jobs:
             -e SGLANG_DENOISE_AGG_TOLERANCE=0.3 \
             -e SGLANG_SKIP_CONSISTENCY=1 \
             -e SGLANG_TEST_NUM_INFERENCE_STEPS=5 \
+            -e SGLANG_DIFFUSION_ARTIFACT_DIR=/sglang-checkout/diffusion-failures \
             -e AITER_JIT_DIR=/sgl-data/aiter-kernels \
             -e MIOPEN_USER_DB_PATH=/sgl-data/miopen-cache \
             -e HF_HUB_ENABLE_HF_TRANSFER=1 \
@@ -838,6 +849,15 @@ jobs:
           echo "=== Post-test System Memory Status ==="
           free -h
 
+      - name: Upload diffusion failure artifacts
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: diffusion-failures-amd-2gpu-${{ matrix.part }}-${{ github.run_attempt }}
+          path: diffusion-failures/
+          if-no-files-found: ignore
+          retention-days: 7
+
 
   wait-for-stage-b-amd:
     needs: [check-changes, call-gate, wait-for-stage-a-amd]