Update model code

InternVL2_5-72B-Pretrain/configuration_internvl_chat.py

@@ -63,6 +63,8 @@ class InternVLChatConfig(PretrainedConfig):
         self.ps_version = ps_version  # pixel shuffle version
         self.min_dynamic_patch = min_dynamic_patch
         self.max_dynamic_patch = max_dynamic_patch
+        # By default, we use tie_word_embeddings=False for models of all sizes.
+        self.tie_word_embeddings = self.llm_config.tie_word_embeddings
 
         logger.info(f'vision_select_layer: {self.select_layer}')
         logger.info(f'ps_version: {self.ps_version}')

InternVL2_5-72B-Pretrain/modeling_intern_vit.py

@@ -364,6 +364,7 @@ class InternVisionEncoder(nn.Module):
 class InternVisionModel(PreTrainedModel):
     main_input_name = 'pixel_values'
     _supports_flash_attn_2 = True
+    supports_gradient_checkpointing = True
     config_class = InternVisionConfig
     _no_split_modules = ['InternVisionEncoderLayer']
 

InternVL2_5-72B-Pretrain/modeling_internvl_chat.py

@@ -37,6 +37,7 @@ class InternVLChatModel(PreTrainedModel):
     main_input_name = 'pixel_values'
     base_model_prefix = 'language_model'
     _supports_flash_attn_2 = True
+    supports_gradient_checkpointing = True
     _no_split_modules = ['InternVisionModel', 'LlamaDecoderLayer', 'Qwen2DecoderLayer']
 
     def __init__(self, config: InternVLChatConfig, vision_model=None, language_model=None, use_flash_attn=True):
@@ -346,3 +347,13 @@ class InternVLChatModel(PreTrainedModel):
         )
 
         return outputs
+
+    @property
+    def lm_head(self):
+        return self.language_model.get_output_embeddings()
+
+    def get_input_embeddings(self):
+        return self.language_model.get_input_embeddings()
+
+    def get_output_embeddings(self):
+        return self.language_model.get_output_embeddings()