Spaces:
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update
Browse files
app.py
CHANGED
@@ -42,118 +42,118 @@ theme = gr.themes.Monochrome(
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### Load the model
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)
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if CFG.gradient_checkpointing:
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self.model.enable_input_require_grads()
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self.model = get_peft_model(self.model, lora_config)
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self.model.print_trainable_parameters()
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self.classification_head = nn.Linear(
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self.backbone_config.vocab_size, CFG.num_labels, bias=False
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)
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self._init_weights(self.classification_head)
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def _init_weights(self, module):
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if isinstance(module, nn.Linear):
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module.weight.data.normal_(mean=0.0, std=self.backbone_config.initializer_range)
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if module.bias is not None:
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module.bias.data.zero_()
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elif isinstance(module, nn.Embedding):
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module.weight.data.normal_(mean=0.0, std=self.backbone_config.initializer_range)
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if module.padding_idx is not None:
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module.weight.data[module.padding_idx].zero_()
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elif isinstance(module, nn.LayerNorm):
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module.bias.data.zero_()
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module.weight.data.fill_(1.0)
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def forward(
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self,
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batch
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):
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# disable cache if gradient checkpointing is enabled
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if CFG.gradient_checkpointing:
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self.model.
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self.model.
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def do_inference(full_text):
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### Load the model
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class CFG:
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num_workers = os.cpu_count()
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llm_backbone = "HuggingFaceH4/zephyr-7b-beta"
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tokenizer_path = "HuggingFaceH4/zephyr-7b-beta"
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tokenizer = AutoTokenizer.from_pretrained(
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tokenizer_path, add_prefix_space=False, use_fast=True, trust_remote_code=True, add_eos_token=True
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)
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batch_size = 1
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max_len = 650
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seed = 42
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num_labels = 7
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lora = True
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lora_r = 4
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lora_alpha = 16
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lora_dropout = 0.05
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lora_target_modules = ""
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gradient_checkpointing = True
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class CustomModel(nn.Module):
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"""
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Model for causal language modeling problem type.
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"""
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def __init__(self):
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super().__init__()
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self.backbone_config = AutoConfig.from_pretrained(
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CFG.llm_backbone, trust_remote_code=True
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)
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quantization_config = BitsAndBytesConfig(
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load_in_4bit=True,
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bnb_4bit_compute_dtype=torch.float16,
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bnb_4bit_quant_type="nf4",
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)
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self.model = AutoModelForCausalLM.from_pretrained(
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CFG.llm_backbone,
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config=self.backbone_config,
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quantization_config=quantization_config,
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)
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if CFG.lora:
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target_modules = []
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for name, module in self.model.named_modules():
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if (
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isinstance(module, (torch.nn.Linear, torch.nn.Conv1d))
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and "head" not in name
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):
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name = name.split(".")[-1]
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if name not in target_modules:
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target_modules.append(name)
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lora_config = LoraConfig(
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r=CFG.lora_r,
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lora_alpha=CFG.lora_alpha,
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target_modules=target_modules,
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lora_dropout=CFG.lora_dropout,
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bias="none",
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task_type="CAUSAL_LM",
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if CFG.gradient_checkpointing:
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self.model.enable_input_require_grads()
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self.model = get_peft_model(self.model, lora_config)
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self.model.print_trainable_parameters()
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self.classification_head = nn.Linear(
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self.backbone_config.vocab_size, CFG.num_labels, bias=False
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)
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self._init_weights(self.classification_head)
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def _init_weights(self, module):
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if isinstance(module, nn.Linear):
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module.weight.data.normal_(mean=0.0, std=self.backbone_config.initializer_range)
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if module.bias is not None:
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module.bias.data.zero_()
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elif isinstance(module, nn.Embedding):
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module.weight.data.normal_(mean=0.0, std=self.backbone_config.initializer_range)
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if module.padding_idx is not None:
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module.weight.data[module.padding_idx].zero_()
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elif isinstance(module, nn.LayerNorm):
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module.bias.data.zero_()
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module.weight.data.fill_(1.0)
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def forward(
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self,
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batch
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):
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# disable cache if gradient checkpointing is enabled
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if CFG.gradient_checkpointing:
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self.model.config.use_cache = False
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self.model.config.pretraining_tp = 1
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output = self.model(
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input_ids=batch["input_ids"],
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attention_mask=batch["attention_mask"],
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)
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output.logits = self.classification_head(output[0][:, -1].float())
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# enable cache again if gradient checkpointing is enabled
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if CFG.gradient_checkpointing:
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self.model.config.use_cache = True
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return output.logits
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model = CustomModel()
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### End Load the model
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def do_inference(full_text):
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