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[Bugfix] remove post_layernorm in siglip #8106

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merged 11 commits into from
Sep 4, 2024
Merged

[Bugfix] remove post_layernorm in siglip #8106

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4a65e17
[Bugfix] remove post_layernorm in siglip
wnma3mz Sep 3, 2024
229bdee
add post_layernorm when num_hidden_layers_override is None for siglip
wnma3mz Sep 3, 2024
98b19bc
update num_hidden_layers_override equals config.num_hidden_layers
wnma3mz Sep 3, 2024
2ec4f3e
format code
wnma3mz Sep 3, 2024
b93318f
fix load_weights
wnma3mz Sep 3, 2024
908d316
Merge branch 'main' into main
wnma3mz Sep 3, 2024
459974b
format code
wnma3mz Sep 3, 2024
e06c4de
format code
wnma3mz Sep 3, 2024
4da0638
format code
wnma3mz Sep 3, 2024
544ab65
move need_post_layernorm to SiglipVisionTransformer
wnma3mz Sep 4, 2024
5ea1163
make need_post_layernorm as a property
wnma3mz Sep 4, 2024
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5 changes: 3 additions & 2 deletions vllm/model_executor/models/siglip.py
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Original file line number Diff line number Diff line change
Expand Up @@ -456,13 +456,14 @@ def forward(

encoder_outputs = self.encoder(inputs_embeds=hidden_states)

last_hidden_state = self.post_layernorm(encoder_outputs)
# When it is used as a visual encoder, post_layernorm is not required
# last_hidden_state = self.post_layernorm(encoder_outputs)

# TODO: add this back when pooled_output is used in inference
# if self.use_head:
# pooled_output = self.head(last_hidden_state)

return last_hidden_state
return encoder_outputs


class SiglipVisionModel(nn.Module):
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