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Fix ace step nan issue on some hardware/pytorch configs. (#12289)
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comfyanonymous 2026-02-04 15:25:06 -08:00 committed by GitHub
parent e77b34dfea
commit 26dd7eb421
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1 changed files with 2 additions and 2 deletions
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comfy/text_encoders/llama.py
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@ -651,10 +651,10 @@ class Llama2_(nn.Module):
mask = None
if attention_mask is not None:
mask = 1.0 - attention_mask.to(x.dtype).reshape((attention_mask.shape[0], 1, -1, attention_mask.shape[-1])).expand(attention_mask.shape[0], 1, seq_len, attention_mask.shape[-1])
mask = mask.masked_fill(mask.to(torch.bool), torch.finfo(x.dtype).min)
mask = mask.masked_fill(mask.to(torch.bool), torch.finfo(x.dtype).min / 4)
if seq_len > 1:
causal_mask = torch.empty(past_len + seq_len, past_len + seq_len, dtype=x.dtype, device=x.device).fill_(torch.finfo(x.dtype).min).triu_(1)
causal_mask = torch.empty(past_len + seq_len, past_len + seq_len, dtype=x.dtype, device=x.device).fill_(torch.finfo(x.dtype).min / 4).triu_(1)
if mask is not None:
mask += causal_mask
else: