fix build in cpu env

Author: ygwpz

setup.py

@@ -81,7 +81,8 @@ def build_cmake(self, ext: CMakeExtension):
                 if hasattr(torch, "cuda") and torch.cuda.is_available():
                     cmake_args += ["-DRUNTIME_ENVIRONMENT=cuda"]
                 else:
-                    cmake_args += ["-DRUNTIME_ENVIRONMENT=ascend"]
+                    cmake_args += ["-DRUNTIME_ENVIRONMENT=simu"]
+                    cmake_args += ["-DBUILD_UCM_SPARSE=OFF"]
 
         subprocess.check_call(
             ["cmake", *cmake_args, ext.cmake_file_path], cwd=build_dir