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allow flex-attention to be disabled (#19)
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* allow flex-attention to silently fail

* allow flex-attn to be disabled via an env var
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Ink 2025-01-14 11:32:07 -06:00 • committed by GitHub
parent 1da3dd9315
commit caec8d2621
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2 changed files with 10 additions and 4 deletions
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7
bytelatent/base_transformer.py
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@ -1,5 +1,5 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
import os
from enum import Enum
from typing import Optional, Tuple, Union
@ -16,7 +16,10 @@ from xformers.ops import AttentionBias, fmha
from bytelatent import probe
flex_attention_comp = torch.compile(flex_attention)
if int(os.environ.get("BLT_ALLOW_MISSING_FLEX_ATTENTION", False)) == 0:
flex_attention_comp = torch.compile(flex_attention)
else:
flex_attention_comp = None
class InitStdFactor(Enum):