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Upload configs/pretrain_12g.yaml with huggingface_hub

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+ # 预训练配置 - 适配 12G 显存 (4070 Ti)
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+ # Qwen2-VL-2B fp16/bf16 + LoRA(r=16), 无 4-bit 量化
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+
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+ model_name_or_path: "Qwen/Qwen2-VL-2B-Instruct"
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+ use_spatial_compression: false
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+ freeze_vision_tower: true
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+ freeze_llm: false
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+ use_lora: true
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+ lora_r: 16
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+ lora_alpha: 32
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+ lora_target_modules:
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+ - "q_proj"
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+ - "k_proj"
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+ - "v_proj"
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+ - "o_proj"
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+ - "gate_proj"
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+ - "up_proj"
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+ - "down_proj"
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+ lora_dropout: 0.05
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+ torch_dtype: "bfloat16"
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+
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+ # 2B 模型 fp16 约 4GB,12G 显存不需要 4-bit
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+ load_in_4bit: false
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+ load_in_8bit: false
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+
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+ dataset_type: "jsonl"
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+ data_path: "data/pretrain/grounding.jsonl"
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+ image_root: "data/coco/val"
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+
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+ batch_size: 2
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+ gradient_accumulation_steps: 8
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+ epochs: 3
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+ learning_rate: 1.0e-4
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+ weight_decay: 0.01
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+ warmup_ratio: 0.03
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+ max_grad_norm: 1.0
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+ max_length: 512
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+ image_size: 224
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+ num_workers: 0
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+
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+ save_every: 1
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+ device: "cuda"