fix scheduler for non-cuda devices and disable piecewise cuda graph f… (#19992)

Co-authored-by: Kangyan-Zhou <zky314343421@gmail.com>

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

@@ -114,15 +114,13 @@ jobs:
           docker exec "$cid" /home/sdp/miniforge3/envs/py3.10/bin/python3 -m pip install pytest expecttest ray huggingface_hub
           docker exec "$cid" /home/sdp/miniforge3/envs/py3.10/bin/python3 -m pip uninstall -y flashinfer-python
           docker exec "$cid" /bin/bash -c '/home/sdp/miniforge3/envs/py3.10/bin/hf auth login --token ${HF_TOKEN} '
-          docker exec -u root "$cid" /bin/bash -c "ln -sf /home/sdp/miniforge3/envs/py3.10/bin/python3 /usr/bin/python3"
+
 
       - name: Run E2E Bfloat16 tests
         timeout-minutes: 20
         run: |
           cid="${{ steps.start_container.outputs.container_id }}"
-          docker exec -w /home/sdp/sglang/ "$cid" \
-            bash -c "LD_LIBRARY_PATH=/home/sdp/miniforge3/envs/py3.10/lib:$LD_LIBRARY_PATH && cd ./test/srt && python3 run_suite.py --suite per-commit-xpu"
-
+          docker exec "$cid" bash -c "source /home/sdp/miniforge3/bin/activate && conda activate py3.10 && cd /home/sdp/sglang/test/srt && python3 run_suite.py --suite per-commit-xpu"
       - name: Cleanup container
         if: always()
         run: |