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fix fope #4191

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Merged
lvhan028 merged 1 commit into from
Dec 10, 2025
+8 −4
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fix fope #4191

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12 changes: 8 additions & 4 deletions lmdeploy/pytorch/backends/default/rotary_embedding.py
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Original file line number Diff line number Diff line change
Expand Up @@ -285,10 +285,14 @@ def __init__(self,
self.params = params

inv_freq = self.params.inv_freq
inv_freq_idx_selected = inv_freq > 2 * torch.pi / self.max_position_embeddings
if self.params.num_inv_freq is not None and inv_freq_idx_selected.sum() > (inv_freq.shape[-1] -
self.params.num_inv_freq):
inv_freq_idx_selected[-self.params.num_inv_freq:] = False
inv_freq_idx_selected = torch.ones_like(inv_freq, dtype=torch.bool)
if self.params.num_inv_freq is not None:
num_inv_freq = self.params.num_inv_freq
inv_freq_idx_selected[num_inv_freq:] = False
else:
inv_freq_idx_selected = inv_freq > (2.0 * torch.pi / self.max_position_embeddings)
num_inv_freq = inv_freq_idx_selected.sum().item()

self.inv_freq = inv_freq[inv_freq_idx_selected]
self.register_buffer('inv_freq', self.inv_freq, persistent=False)

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