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vllm/model_executor/layers/quantization/utils/mxfp8_utils.py

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+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+import torch
+
+from vllm.logger import init_logger
+
+logger = init_logger(__name__)
+
+
+def mxfp8_quantize(x: torch.Tensor) -> tuple[torch.Tensor, torch.Tensor]:
+
+    try:
+        from flashinfer import mxfp8_quantize
+    except ImportError as err:
+        raise ImportError("The package `flashinfer` is required to do "
+                          "MX-FP8 quantization. Please install it with" \
+                          "`pip install flashinfer`") from err
+
+    return mxfp8_quantize(x, is_sf_swizzled_layout=False)