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[Precision] Support lm_head layer running in float32 (#3597)
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* support lm_head fp32 bf16 fp16

* support lm_head fp32 bf16 fp16

* add doc and check code

* lm_head_fp32 specify lm_head as fp32

* code check

* check doc
This commit is contained in:
chen
2025-08-27 11:34:53 +08:00
committed by GitHub
parent ad319a87cc
commit ce9c0917c5
15 changed files with 99 additions and 60 deletions
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fastdeploy/model_executor/models/qwen2.py
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@@ -379,7 +379,7 @@ class Qwen2ForCausalLM(ModelForCasualLM):
def compute_logits(self, hidden_states: paddle.Tensor):
""" """
logits = self.lm_head(hidden_states)
logits = paddle.cast(logits, paddle.float32)
logits = logits.astype(paddle.float32)
logits[:, self.ori_vocab_size :] = -float("inf")
return logits