22 lines
645 B
Python
22 lines
645 B
Python
# 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_e4m3_quantize(x: torch.Tensor) -> tuple[torch.Tensor, torch.Tensor]:
|
|
try:
|
|
from flashinfer import mxfp8_quantize as mxfp8_e4m3_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_e4m3_quantize(x, is_sf_swizzled_layout=False)
|