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08591e5 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | import transformers
def replace_llama_rmsnorm_with_fused_rmsnorm():
try:
from functools import partial
from apex.normalization import FusedRMSNorm
LlamaRMSNorm = partial(FusedRMSNorm, eps=1e-6) # noqa
transformers.models.llama.modeling_llama.LlamaRMSNorm = LlamaRMSNorm
print('Discovered apex.normalization.FusedRMSNorm - will use it instead of LlamaRMSNorm')
except ImportError:
# using the normal LlamaRMSNorm
pass
except Exception:
print('discovered apex but it failed to load, falling back to LlamaRMSNorm')
pass
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