[gpt-oss] Add gpt-oss bf16 support

vllm/triton_utils/importing.py

@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+import types
+from importlib.util import find_spec
+
+from vllm.logger import init_logger
+
+logger = init_logger(__name__)
+
+HAS_TRITON = (
+    find_spec("triton") is not None
+    or find_spec("pytorch-triton-xpu") is not None  # Not compatible
+)
+
+if not HAS_TRITON:
+    logger.info("Triton not installed or not compatible; certain GPU-related"
+                " functions will not be available.")
+
+
+class TritonPlaceholder(types.ModuleType):
+
+    def __init__(self):
+        super().__init__("triton")
+        self.jit = self._dummy_decorator("jit")
+        self.autotune = self._dummy_decorator("autotune")
+        self.heuristics = self._dummy_decorator("heuristics")
+        self.language = TritonLanguagePlaceholder()
+        logger.warning_once(
+            "Triton is not installed. Using dummy decorators. "
+            "Install it via `pip install triton` to enable kernel"
+            " compilation.")
+
+    def _dummy_decorator(self, name):
+
+        def decorator(*args, **kwargs):
+            if args and callable(args[0]):
+                return args[0]
+            return lambda f: f
+
+        return decorator
+
+
+class TritonLanguagePlaceholder(types.ModuleType):
+
+    def __init__(self):
+        super().__init__("triton.language")
+        self.constexpr = None
+        self.dtype = None
+        self.int64 = None