Release sglang kernel 0.4.0 (#20440)

Co-authored-by: Baizhou Zhang <sobereddiezhang@gmail.com>

sgl-kernel/README.md

@@ -1,22 +1,22 @@
-# sgl-kernel
+# sglang-kernel (prior sgl-kernel)
 
 [Kernel Library](https://github.com/sgl-project/sglang/tree/main/sgl-kernel) for LLM inference engines
 
 <div align="center">
 
 [![License: Apache-2.0](https://img.shields.io/badge/License-Apache--2.0-blue.svg)](https://github.com/sgl-project/sglang/blob/main/LICENSE)
-[![PyPI](https://img.shields.io/pypi/v/sgl-kernel)](https://pypi.org/project/sgl-kernel)
+[![PyPI](https://img.shields.io/pypi/v/sglang-kernel)](https://pypi.org/project/sglang-kernel)
 
 </div>
 
-sgl-kernel provides optimized compute primitives for LLM inference engines, enabling efficient inference for large language models and vision-language models through custom kernel operations. It has been used by [LightLLM](https://github.com/ModelTC/LightLLM), [SGLang](https://github.com/sgl-project/sglang) and so on.
+`sglang-kernel` provides optimized compute primitives for LLM inference engines, enabling efficient inference for large language models and vision-language models through custom kernel operations. The source tree remains under the `sgl-kernel/` directory and the Python import path remains `sgl_kernel`.
 
 ## Installation
 Requires torch == 2.9.1
 
 ```bash
 # Latest version
-pip3 install sgl-kernel --upgrade
+pip3 install sglang-kernel --upgrade
 ```
 
 ## Building from Source
@@ -26,7 +26,7 @@ Requires
 - scikit-build-core
 - ninja(optional)
 
-### Use Makefile to build sgl-kernel
+### Use Makefile to build from the sgl-kernel source tree
 
 ```bash
 make build
@@ -125,10 +125,10 @@ This tool requires `cubloaty` (install with `pip install cubloaty`) to work.
 pip install cubloaty
 
 # Analyze a wheel file
-python analyze_whl_kernel_sizes.py path/to/sgl_kernel-*.whl
+python analyze_whl_kernel_sizes.py path/to/sglang_kernel-*.whl
 
 # Custom output file
-python analyze_whl_kernel_sizes.py path/to/sgl_kernel-*.whl --output my_analysis.txt
+python analyze_whl_kernel_sizes.py path/to/sglang_kernel-*.whl --output my_analysis.txt
 ```
 
 The tool generates:

sgl-kernel/analyze_whl_kernel_sizes.py

@@ -197,7 +197,7 @@ def generate_report(all_kernels, output_file):
 
 def main():
     parser = argparse.ArgumentParser(
-        description="Analyze CUDA kernel sizes in sgl-kernel whl file"
+        description="Analyze CUDA kernel sizes in sglang-kernel wheel files"
     )
     parser.add_argument("whl", type=str, help="Path to whl file")
     parser.add_argument(

sgl-kernel/pyproject.toml

@@ -7,8 +7,8 @@ requires = [
 build-backend = "scikit_build_core.build"
 
 [project]
-name = "sgl-kernel"
-version = "0.3.21"
+name = "sglang-kernel"
+version = "0.4.0"
 authors = [
   { name="SGLang Kernel Team", email="sglang@lmsys.org" },
 ]

sgl-kernel/pyproject_cpu.toml

@@ -8,7 +8,7 @@ build-backend = "scikit_build_core.build"
 
 [project]
 name = "sglang-kernel-cpu"
-version = "0.3.21"
+version = "0.4.0"
 description = "Kernel Library for SGLang"
 readme = "README.md"
 requires-python = ">=3.10"

sgl-kernel/pyproject_musa.toml

@@ -9,8 +9,8 @@ requires = [
 build-backend = "setuptools.build_meta"
 
 [project]
-name = "sgl-kernel"
-version = "0.3.20"
+name = "sglang-kernel"
+version = "0.4.0"
 description = "Kernel Library for SGLang"
 readme = "README.md"
 requires-python = ">=3.10"

sgl-kernel/pyproject_rocm.toml

@@ -8,8 +8,8 @@ requires = [
 build-backend = "setuptools.build_meta"
 
 [project]
-name = "sgl-kernel"
-version = "0.3.21"
+name = "sglang-kernel"
+version = "0.4.0"
 description = "Kernel Library for SGLang"
 readme = "README.md"
 requires-python = ">=3.10"

sgl-kernel/python/sgl_kernel/load_utils.py

@@ -169,10 +169,10 @@ def _load_architecture_specific_ops():
     cuda_version = torch.version.cuda
     if cuda_version and cuda_version.startswith("13"):
         install_hint = (
-            "pip install sgl-kernel --index-url https://docs.sglang.ai/whl/cu130/"
+            "pip install sglang-kernel --index-url https://docs.sglang.ai/whl/cu130/"
         )
     else:
-        install_hint = "pip install --upgrade sgl_kernel"
+        install_hint = "pip install --upgrade sglang-kernel"
 
     error_msg = f"""
 [sgl_kernel] CRITICAL: Could not load any common_ops library!

sgl-kernel/python/sgl_kernel/version.py

@@ -1 +1 @@
-__version__ = "0.3.21"
+__version__ = "0.4.0"

sgl-kernel/setup_musa.py

@@ -197,7 +197,7 @@ class _CustomBuildExt(BuildExtension):
 
 
 setup(
-    name="sgl-kernel",
+    name="sglang-kernel",
     version=_get_version(),
     packages=find_packages(where="python"),
     package_dir={"": "python"},

sgl-kernel/setup_rocm.py

@@ -118,7 +118,7 @@ ext_modules = [
 ]
 
 setup(
-    name="sgl-kernel",
+    name="sglang-kernel",
     version=_get_version(),
     packages=find_packages(where="python"),
     package_dir={"": "python"},