Qwen
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Text Generation
Transformers
Safetensors
Chinese
English
qwen
custom_code
yangapku commited on
Commit
98d83d3
1 Parent(s): 1ff2086

update modeling_qwen.py

Browse files
Files changed (1) hide show
  1. modeling_qwen.py +4 -6
modeling_qwen.py CHANGED
@@ -520,9 +520,7 @@ class QWenAttention(nn.Module):
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  if not self.use_cache_quantization and SUPPORT_TORCH2:
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  if attention_mask is not None:
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- attention_mask = attention_mask.expand(
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- -1, -1, causal_mask.size(2), -1
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- )
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  if causal_mask is not None:
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  attention_mask = attention_mask.masked_fill(~causal_mask, torch.finfo(query.dtype).min)
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  else:
@@ -1330,14 +1328,14 @@ def apply_rotary_pos_emb(t, freqs):
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  t (tensor(batch_size, seq_len, n_head, head_dim)):
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  the input embedding/hidden states
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  freqs (list[tensor(1, seq_len, 1, rotary_dim), tensor(1, seq_len, 1, rotary_dim)]):
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- the cached cos/sin position embeddings
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  """
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  rot_dim = freqs[0].shape[-1]
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  cos, sin = freqs
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  t_float = t.float()
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  if apply_rotary_emb_func is not None and t.is_cuda:
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- # apply_rotary_emb in flash_attn requires cos/sin to be of
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- # shape (seqlen, rotary_dim / 2) and apply rotary embedding
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  # to the first rotary_dim of the input
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  cos = cos.squeeze(0).squeeze(1)[:, : rot_dim // 2]
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  sin = sin.squeeze(0).squeeze(1)[:, : rot_dim // 2]
 
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  if not self.use_cache_quantization and SUPPORT_TORCH2:
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  if attention_mask is not None:
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+ attention_mask = attention_mask.expand(-1, -1, key_size, -1)
 
 
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  if causal_mask is not None:
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  attention_mask = attention_mask.masked_fill(~causal_mask, torch.finfo(query.dtype).min)
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  else:
 
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  t (tensor(batch_size, seq_len, n_head, head_dim)):
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  the input embedding/hidden states
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  freqs (list[tensor(1, seq_len, 1, rotary_dim), tensor(1, seq_len, 1, rotary_dim)]):
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+ the cached cos/sin position embeddings
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  """
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  rot_dim = freqs[0].shape[-1]
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  cos, sin = freqs
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  t_float = t.float()
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  if apply_rotary_emb_func is not None and t.is_cuda:
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+ # apply_rotary_emb in flash_attn requires cos/sin to be of
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+ # shape (seqlen, rotary_dim / 2) and apply rotary embedding
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  # to the first rotary_dim of the input
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  cos = cos.squeeze(0).squeeze(1)[:, : rot_dim // 2]
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  sin = sin.squeeze(0).squeeze(1)[:, : rot_dim // 2]