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Fix for running via DirectML (#6542)

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* Fix for running via DirectML

Fix DirectML empty image generation issue with Flux1. add CPU fallback for unsupported path. Verified the model works on AMD GPUs

* fix formating

* update casual mask calculation
This commit is contained in:
HishamC
2025-02-11 14:11:32 -08:00
committed by GitHub
parent af4b7c91be
commit b124256817
3 changed files with 13 additions and 2 deletions
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6
comfy/clip_model.py
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@@ -104,7 +104,11 @@ class CLIPTextModel_(torch.nn.Module):
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, attention_mask.shape[-1], attention_mask.shape[-1])
mask = mask.masked_fill(mask.to(torch.bool), -torch.finfo(x.dtype).max)
causal_mask = torch.empty(x.shape[1], x.shape[1], dtype=x.dtype, device=x.device).fill_(-torch.finfo(x.dtype).max).triu_(1)
if comfy.model_management.is_directml_enabled():
causal_mask = torch.full((x.shape[1], x.shape[1]), -torch.finfo(x.dtype).max, dtype=x.dtype, device=x.device).triu_(1)
else:
causal_mask = torch.empty(x.shape[1], x.shape[1], dtype=x.dtype, device=x.device).fill_(float("-inf")).triu_(1)
if mask is not None:
mask += causal_mask
else: