support sgl-kernel on blackwell (#5074)

sgl-kernel/build.sh

 #!/bin/bash
 set -ex
+
 PYTHON_VERSION=$1
 CUDA_VERSION=$2
 PYTHON_ROOT_PATH=/opt/python/cp${PYTHON_VERSION//.}-cp${PYTHON_VERSION//.}
+ENABLE_SM90A=$(( ${CUDA_VERSION%.*} >= 12 ? ON : OFF ))
 
-if (( ${CUDA_VERSION%.*} < 12 )); then
-    ENABLE_SM90A=0
+if [ ${CUDA_VERSION} = "12.8" ]; then
+   DOCKER_IMAGE="pytorch/manylinux2_28-builder:cuda${CUDA_VERSION}"
+   TORCH_INSTALL="pip install --no-cache-dir --pre torch --index-url https://download.pytorch.org/whl/nightly/cu${CUDA_VERSION//.}"
 else
-    ENABLE_SM90A=1
+   DOCKER_IMAGE="pytorch/manylinux-builder:cuda${CUDA_VERSION}"
+   TORCH_INSTALL="pip install --no-cache-dir torch==2.5.1 --index-url https://download.pytorch.org/whl/cu${CUDA_VERSION//.}"
 fi
 
 docker run --rm \
-    -v $(pwd):/sgl-kernel \
-    pytorch/manylinux-builder:cuda${CUDA_VERSION} \
-    bash -c "
-    ${PYTHON_ROOT_PATH}/bin/pip install --no-cache-dir torch==2.5.1 --index-url https://download.pytorch.org/whl/cu${CUDA_VERSION//.} && \
-    ${PYTHON_ROOT_PATH}/bin/pip install --no-cache-dir ninja setuptools==75.0.0 wheel==0.41.0 numpy uv && \
-    export TORCH_CUDA_ARCH_LIST='7.5 8.0 8.9 9.0+PTX' && \
-    export CUDA_VERSION=${CUDA_VERSION} && \
-    export SGL_KERNEL_ENABLE_BF16=1 && \
-    export SGL_KERNEL_ENABLE_FP8=1 && \
-    export SGL_KERNEL_ENABLE_SM90A=${ENABLE_SM90A} && \
-    mkdir -p /usr/lib/x86_64-linux-gnu/ && \
-    ln -s /usr/local/cuda-${CUDA_VERSION}/targets/x86_64-linux/lib/stubs/libcuda.so /usr/lib/x86_64-linux-gnu/libcuda.so && \
-    cd /sgl-kernel && \
-    ls -la ${PYTHON_ROOT_PATH}/lib/python${PYTHON_VERSION}/site-packages/wheel/ && \
-    PYTHONPATH=${PYTHON_ROOT_PATH}/lib/python${PYTHON_VERSION}/site-packages ${PYTHON_ROOT_PATH}/bin/python -m uv build --wheel -Cbuild-dir=build . --color=always && \
-    ./rename_wheels.sh
-    "
+   -v $(pwd):/sgl-kernel \
+   ${DOCKER_IMAGE} \
+   bash -c "
+   ${PYTHON_ROOT_PATH}/bin/${TORCH_INSTALL} && \
+   ${PYTHON_ROOT_PATH}/bin/pip install --no-cache-dir ninja setuptools==75.0.0 wheel==0.41.0 numpy uv && \
+   export TORCH_CUDA_ARCH_LIST='7.5 8.0 8.9 9.0+PTX' && \
+   export CUDA_VERSION=${CUDA_VERSION} && \
+   mkdir -p /usr/lib/x86_64-linux-gnu/ && \
+   ln -s /usr/local/cuda-${CUDA_VERSION}/targets/x86_64-linux/lib/stubs/libcuda.so /usr/lib/x86_64-linux-gnu/libcuda.so && \
+   cd /sgl-kernel && \
+   ls -la ${PYTHON_ROOT_PATH}/lib/python${PYTHON_VERSION}/site-packages/wheel/ && \
+   PYTHONPATH=${PYTHON_ROOT_PATH}/lib/python${PYTHON_VERSION}/site-packages ${PYTHON_ROOT_PATH}/bin/python -m uv build --wheel -Cbuild-dir=build . --color=always && \
+   ./rename_wheels.sh
+   "