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2 changed files with 31 additions and 12 deletions

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@ -937,22 +937,41 @@ class BaseGenerate:
return torch.argmax(logits, dim=-1, keepdim=True)
# Sampling mode
if repetition_penalty != 1.0:
for i in range(logits.shape[0]):
for token_id in set(token_history):
logits[i, token_id] *= repetition_penalty if logits[i, token_id] < 0 else 1/repetition_penalty
if presence_penalty is not None and presence_penalty != 0.0:
for i in range(logits.shape[0]):
for token_id in set(token_history):
logits[i, token_id] -= presence_penalty
if len(token_history) > 0 and (repetition_penalty != 1.0 or (presence_penalty is not None and presence_penalty != 0.0)):
token_ids = torch.tensor(list(set(token_history)), device=logits.device)
token_logits = logits[:, token_ids]
if repetition_penalty != 1.0:
token_logits = torch.where(token_logits < 0, token_logits * repetition_penalty, token_logits / repetition_penalty)
if presence_penalty is not None and presence_penalty != 0.0:
token_logits = token_logits - presence_penalty
logits[:, token_ids] = token_logits
if temperature != 1.0:
logits = logits / temperature
if top_k > 0:
indices_to_remove = logits < torch.topk(logits, top_k)[0][..., -1, None]
logits[indices_to_remove] = torch.finfo(logits.dtype).min
top_k = min(top_k, logits.shape[-1])
logits, top_indices = torch.topk(logits, top_k)
if min_p > 0.0:
probs_before_filter = torch.nn.functional.softmax(logits, dim=-1)
top_probs, _ = probs_before_filter.max(dim=-1, keepdim=True)
min_threshold = min_p * top_probs
indices_to_remove = probs_before_filter < min_threshold
logits[indices_to_remove] = torch.finfo(logits.dtype).min
if top_p < 1.0:
sorted_logits, sorted_indices = torch.sort(logits, descending=True)
cumulative_probs = torch.cumsum(torch.nn.functional.softmax(sorted_logits, dim=-1), dim=-1)
sorted_indices_to_remove = cumulative_probs > top_p
sorted_indices_to_remove[..., 0] = False
indices_to_remove = torch.zeros_like(logits, dtype=torch.bool)
indices_to_remove.scatter_(1, sorted_indices, sorted_indices_to_remove)
logits[indices_to_remove] = torch.finfo(logits.dtype).min
probs = torch.nn.functional.softmax(logits, dim=-1)
next_token = torch.multinomial(probs, num_samples=1, generator=generator)
return top_indices.gather(1, next_token)
if min_p > 0.0:
probs_before_filter = torch.nn.functional.softmax(logits, dim=-1)

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@ -1,6 +1,6 @@
comfyui-frontend-package==1.45.20
comfyui-workflow-templates==0.11.2
comfyui-embedded-docs==0.5.6
comfyui-embedded-docs==0.5.7
torch
torchsde
torchvision