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# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from transformers import GemmaConfig, PaliGemmaConfig
def get_paligemma_config(precision: str):
config = {
"image_token_index": None,
"pad_token_id": 0,
"bos_token_id": 2,
"eos_token_id": 1,
}
# image_sizes = {"2b-test": 224, "3b-224px": 224, "3b-448px": 448, "3b-896px": 896}
image_size = 224 # image_sizes[variant]
patch_size = 14
num_image_tokens = (image_size**2) // (patch_size**2)
config["image_token_index"] = 257152
text_config = {
"vocab_size": 257152,
"num_hidden_layers": 18,
"num_key_value_heads": 1,
"head_dim": 256,
"torch_dtype": precision,
"hidden_size": 2048,
"hidden_activation": "gelu_pytorch_tanh",
"num_attention_heads": 8,
"intermediate_size": 16384,
"is_encoder_decoder": False,
}
vision_config = {
"torch_dtype": precision,
"image_size": image_size,
"patch_size": patch_size,
"num_image_tokens": num_image_tokens,
"hidden_size": 1152,
"intermediate_size": 4304,
"num_hidden_layers": 27,
"num_attention_heads": 16,
"projector_hidden_act": "gelu_fast",
"vision_use_head": False,
}
final_config = PaliGemmaConfig(text_config=text_config, vision_config=vision_config, **config)
return final_config
def get_gemma_config(precision: str):
config = {
"image_token_index": None,
"pad_token_id": 0,
"bos_token_id": 2,
"eos_token_id": 1,
}
config["image_token_index"] = 257152
text_config = {
"vocab_size": 257152,
"num_hidden_layers": 18,
"num_key_value_heads": 1,
"head_dim": 256,
"torch_dtype": precision,
"hidden_size": 1024,
"hidden_activation": "gelu_pytorch_tanh",
"num_attention_heads": 8,
"intermediate_size": 4096,
"is_encoder_decoder": False,
}
final_config = GemmaConfig()
final_config.update(text_config)
return final_config
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