[MUSA][1/N] sglang.check_env (#16959)

Signed-off-by: Xiaodong Ye <xiaodong.ye@mthreads.com>

python/pyproject_other.toml

@@ -66,7 +66,6 @@ runtime_common = [
   "grpcio==1.75.1", # keep it align with compile_proto.py
   "grpcio-tools==1.75.1", # keep it align with compile_proto.py
   "grpcio-reflection==1.75.1", # required by srt/entrypoints/grpc_server.py
-  "bidict",
 ]
 
 tracing = [

python/sglang/check_env.py

@@ -10,7 +10,7 @@ from collections import OrderedDict, defaultdict
 
 import torch
 
-from sglang.srt.utils import is_hip, is_npu
+from sglang.srt.utils import is_hip, is_musa, is_npu
 
 
 def is_cuda_v2():
@@ -423,6 +423,96 @@ class NPUEnv(BaseEnv):
             return {}
 
 
+class MUSAEnv(BaseEnv):
+    """Environment checker for MThreads GPU"""
+
+    def get_info(self):
+        musa_info = {"MUSA available": torch.musa.is_available()}
+
+        if musa_info["MUSA available"]:
+            musa_info.update(self.get_device_info())
+            musa_info.update(self._get_musa_version_info())
+
+        return musa_info
+
+    def _get_musa_version_info(self):
+        """
+        Get MUSA version information.
+        """
+        from torch_musa.utils.musa_extension import MUSA_HOME
+
+        musa_info = {"MUSA_HOME": MUSA_HOME}
+
+        if MUSA_HOME and os.path.isdir(MUSA_HOME):
+            musa_info.update(self._get_mcc_info())
+            musa_info.update(self._get_musa_driver_version())
+
+        return musa_info
+
+    def _get_mcc_info(self):
+        """
+        Get MCC version information.
+        """
+        from torch_musa.utils.musa_extension import MUSA_HOME
+
+        try:
+            mcc = os.path.join(MUSA_HOME, "bin/mcc")
+            mcc_output = (
+                subprocess.check_output(f'"{mcc}" --version', shell=True)
+                .decode("utf-8")
+                .strip()
+            )
+            return {
+                "MCC": mcc_output[
+                    mcc_output.rfind("mcc version") : mcc_output.rfind("Target")
+                ].strip()
+            }
+        except subprocess.SubprocessError:
+            return {"MCC": "Not Available"}
+
+    def _get_musa_driver_version(self):
+        """
+        Get MUSA driver version.
+        """
+        try:
+            output = subprocess.check_output(
+                [
+                    "mthreads-gmi",
+                    "-q",
+                ],
+                text=True,
+            )
+            driver_version = None
+            for line in output.splitlines():
+                if "Driver Version" in line:
+                    driver_version = line.split(":", 1)[1].strip()
+                    break
+
+            return {"MUSA Driver Version": driver_version}
+        except subprocess.SubprocessError:
+            return {"MUSA Driver Version": "Not Available"}
+
+    def get_topology(self):
+        """
+        Get GPU topology information.
+        """
+        try:
+            result = subprocess.run(
+                ["mthreads-gmi", "topo", "-m"],
+                stdout=subprocess.PIPE,
+                stderr=subprocess.PIPE,
+                text=True,
+                check=True,
+            )
+            return {
+                "MTHREADS Topology": (
+                    "\n" + result.stdout if result.returncode == 0 else None
+                )
+            }
+        except subprocess.SubprocessError:
+            return {}
+
+
 if __name__ == "__main__":
     if is_cuda_v2():
         env = GPUEnv()
@@ -430,4 +520,6 @@ if __name__ == "__main__":
         env = HIPEnv()
     elif is_npu():
         env = NPUEnv()
+    elif is_musa():
+        env = MUSAEnv()
     env.check_env()

python/sglang/srt/utils/common.py

@@ -185,6 +185,15 @@ def is_cpu() -> bool:
     return os.getenv("SGLANG_USE_CPU_ENGINE", "0") == "1" and is_host_cpu_supported
 
 
+@lru_cache(maxsize=1)
+def is_musa() -> bool:
+    try:
+        import torchada  # noqa: F401
+    except ImportError:
+        return False
+    return hasattr(torch.version, "musa") and torch.version.musa is not None
+
+
 def is_float4_e2m1fn_x2(dtype) -> bool:
     """Check if dtype is float4_e2m1fn_x2 and CUDA is available."""
     target_dtype = getattr(torch, "float4_e2m1fn_x2", None)