PeftModel failing to load after finetuning. Size Mismatch Error

[sunxiaojie99]

System Info

I trained the Mistral-7B-Instruct-v0-1 model using LoRa and deepspeed

• Peft version : 0.10.0
• transformers version : 4.40.0

Code to load model after fine-tuning:

base_model = cls.TRANSFORMER_CLS.from_pretrained(model_name_or_path, **hf_kwargs)
lora_config = LoraConfig.from_pretrained(lora_name_or_path, **hf_kwargs)
lora_model = PeftModel.from_pretrained(base_model, lora_name_or_path, config=lora_config)

Deepspeed config:

{
    "zero_optimization": {
        "stage": 3,
        "offload_optimizer": {
            "device": "none",
            "pin_memory": true
        },
        "offload_param": {
            "device": "none",
            "pin_memory": true
        },
        "overlap_comm": true,
        "contiguous_gradients": true,
        "sub_group_size": 1e9,
        "reduce_bucket_size": 1e6,
        "stage3_prefetch_bucket_size": "auto",
        "stage3_param_persistence_threshold": "auto",
        "stage3_max_live_parameters": 1e9,
        "stage3_max_reuse_distance": 1e9,
        "stage3_gather_16bit_weights_on_model_save": true
    },
    "fp16": {
        "enabled": "auto",
        "loss_scale": 0,
        "initial_scale_power": 10,
        "loss_scale_window": 1000,
        "hysteresis": 2,
        "min_loss_scale": 1
    },
    "bf16": {
        "enabled": "auto",
        "loss_scale": 0,
        "initial_scale_power": 10,
        "loss_scale_window": 1000,
        "hysteresis": 2,
        "min_loss_scale": 1
    },
    "optimizer": {
        "type": "AdamW",
        "params": {
            "lr": "auto",
            "betas": "auto",
            "eps": "auto",
            "weight_decay": "auto",
            "torch_adam": true
        }
    },

    "scheduler": {
        "type": "WarmupDecayLR",
        "params": {
            "warmup_min_lr": "auto",
            "warmup_max_lr": "auto",
            "warmup_num_steps": "auto",
            "total_num_steps": "auto"
        }
    },

    "gradient_accumulation_steps": "auto",
    "gradient_clipping": "auto",
    "steps_per_print": 1000,
    "train_batch_size": "auto",
    "train_micro_batch_size_per_gpu": "auto",
    "wall_clock_breakdown": false
}

I am getting the following error:

File "/usr/local/lib/python3.8/dist-packages/peft/peft_model.py", line 271, in from_pretrained
    model.load_adapter(model_id, adapter_name, is_trainable=is_trainable, **kwargs)
  File "/usr/local/lib/python3.8/dist-packages/peft/peft_model.py", line 561, in load_adapter
    load_result = set_peft_model_state_dict(self, adapters_weights, adapter_name=adapter_name)
  File "/usr/local/lib/python3.8/dist-packages/peft/utils/save_and_load.py", line 126, in set_peft_model_state_dict
    load_result = model.load_state_dict(peft_model_state_dict, strict=False)
  File "/usr/local/lib/python3.8/dist-packages/torch/nn/modules/module.py", line 2189, in load_state_dict
    raise RuntimeError('Error(s) in loading state_dict for {}:\n\t{}'.format(
RuntimeError: Error(s) in loading state_dict for PeftModelForFeatureExtraction:
        size mismatch for base_model.model.layers.0.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.0.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.0.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.1.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.1.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.1.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.2.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.2.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.2.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.3.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.3.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.3.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.4.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.4.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.4.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.5.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.5.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.5.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.6.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.6.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.6.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.7.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.7.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.7.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.8.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.8.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.8.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.9.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.9.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.9.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.10.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.10.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.10.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.11.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.11.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.11.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.12.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.12.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.12.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.13.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.13.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.13.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.14.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.14.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.14.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.15.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.15.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.15.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.16.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.16.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.16.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.17.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.17.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.17.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.18.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.18.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.18.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.19.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.19.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.19.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.20.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.20.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.20.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.21.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.21.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.21.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.22.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.22.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.22.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.23.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.23.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.23.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.24.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.24.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.24.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.25.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.25.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.25.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.26.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.26.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.26.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.27.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.27.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.27.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.28.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.28.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.28.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.29.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.29.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.29.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.30.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.30.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.30.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).
        size mismatch for base_model.model.layers.31.mlp.gate_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.31.mlp.up_proj.lora_B.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([14336, 8]).
        size mismatch for base_model.model.layers.31.mlp.down_proj.lora_A.default.weight: copying a param with shape torch.Size([0]) from checkpoint, the shape in current model is torch.Size([8, 14336]).

Who can help?

@younesbelkada @BenjaminBossa

Information

• The official example scripts
• My own modified scripts

Tasks

• An officially supported task in the examples folder
• My own task or dataset (give details below)

Reproduction

Code to load model during fine-tuning:

base_model = AutoModel.from_pretrained(model_args.model_name_or_path, **hf_kwargs)
lora_config = LoraConfig(
                    base_model_name_or_path=model_args.model_name_or_path,
                    task_type="FEATURE_EXTRACTION",
                    r=model_args.lora_r,
                    lora_alpha=model_args.lora_alpha,
                    lora_dropout=model_args.lora_dropout,
                    target_modules=model_args.lora_target_modules.split(','),
                    inference_mode=False
                )
lora_model = get_peft_model(base_model, lora_config)

Expected behavior

Weights should load as expected.

[sunxiaojie99]

my error is similar like this one

[BenjaminBossan]

It looks like empty weights were stored when you saved your checkpoint after DeepSpeed training. Probably if you check the size if the file, you'll find it to be smaller than expected.

If you follow our DeepSpeed guide, you should get working results.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.