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Update gemma.py

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Daniel Han-Chen 2024-02-25 02:30:06 +11:00
commit 911745377a
1 changed files with 7 additions and 5 deletions
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12
unsloth/models/gemma.py
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@ -75,12 +75,14 @@ class FastGemmaRotaryEmbedding(torch.nn.Module):
t = torch.arange(position_ids.shape[1], device="cpu", dtype=torch.int64).float()
freqs = torch.outer(t, self.inv_freq)
emb = torch.cat((freqs, freqs), dim=-1).to("cuda")
emb_old = torch.cat((freqs, freqs), dim=-1).to("cuda")
# inv_freq_expanded = self.inv_freq[None, :, None].float().expand(position_ids.shape[0], -1, 1)
# position_ids_expanded = position_ids[:, None, :].float()
# freqs = (inv_freq_expanded @ position_ids_expanded).transpose(1, 2)
# emb = torch.cat((freqs, freqs), dim=-1)
inv_freq_expanded = self.inv_freq[None, :, None].float().expand(position_ids.shape[0], -1, 1)
position_ids_expanded = position_ids[:, None, :].float()
freqs = (inv_freq_expanded @ position_ids_expanded).transpose(1, 2)
emb_new = torch.cat((freqs, freqs), dim=-1)
print(torch.dist(emd_old, emd_new))
return emb.cos().to(dtype=x.dtype), emb.sin().to(dtype=x.dtype)
pass