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justinxzhao avatar justinxzhao commented on June 18, 2024

Hi @msmmpts,

NaN values are more likely if you use a really high learning rate. I would recommend retrying with a learning rate that's an order magnitude smaller, like 0.0001.

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msmmpts avatar msmmpts commented on June 18, 2024

Hi @justinxzhao ,

I tried with a learning rate of 0.0001. Same issue persists.

Training:  18%|█▊        | 719/4000 [22:29<44:32,  1.23it/s]training: completed batch 719 memory used: 2984.25MB
/usr/local/lib/python3.10/dist-packages/torchmetrics/aggregation.py:77: UserWarning: Encounted `nan` values in tensor. Will be removed.
  warnings.warn("Encounted `nan` values in tensor. Will be removed.", UserWarning)```

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K-Mistele avatar K-Mistele commented on June 18, 2024

+1 on this. I see this warning, and then get the following error at the end of the first epoch each time:

Starting with step 0, epoch: 0
Training:  33%|███▎      | 429/1287 [32:07<1:08:57,  4.82s/it, loss=nan]Found NaN or inf values in parameter 'model.base_model.model.model.layers.0.self_attn.q_proj.lora_A.default.weight' of module 'LLM'
NaN or inf tensors found in the model. Stopping training.
Could not load best checkpoint state from /mnt/disk/AI/ludwig/ludwig-lora/results/experiment_run/model/training_checkpoints/best.ckpt. Best checkpoint may not exist.
Traceback (most recent call last):
  File "/home/constellate/anaconda3/envs/ludwig/bin/ludwig", line 8, in <module>
    sys.exit(main())
  File "/home/constellate/anaconda3/envs/ludwig/lib/python3.10/site-packages/ludwig/cli.py", line 197, in main
    CLI()
  File "/home/constellate/anaconda3/envs/ludwig/lib/python3.10/site-packages/ludwig/cli.py", line 72, in __init__
    getattr(self, args.command)()
  File "/home/constellate/anaconda3/envs/ludwig/lib/python3.10/site-packages/ludwig/cli.py", line 77, in train
    train.cli(sys.argv[2:])
  File "/home/constellate/anaconda3/envs/ludwig/lib/python3.10/site-packages/ludwig/train.py", line 395, in cli
    train_cli(**vars(args))
  File "/home/constellate/anaconda3/envs/ludwig/lib/python3.10/site-packages/ludwig/train.py", line 185, in train_cli
    model.train(
  File "/home/constellate/anaconda3/envs/ludwig/lib/python3.10/site-packages/ludwig/api.py", line 678, in train
    train_stats = trainer.train(
  File "/home/constellate/anaconda3/envs/ludwig/lib/python3.10/site-packages/ludwig/trainers/trainer.py", line 1130, in train
    raise RuntimeError(error_message)
RuntimeError: Training ran into an error. No checkpoint was saved. This is because training was terminated early due to the presence of NaN or Inf values in the model weights before a single valid checkpoint could be saved.

Here's my model.yaml file:

model_type: llm
backend:
  type: local
base_model: mistralai/Mistral-7B-v0.1
quantization:
  bits: 4

adapter:
  type: lora

prompt:
  template: >-
    You are given a premise and a hypothesis below. If the premise entails the hypothesis, return 0. If the premise contradicts the hypothesis, return 2. Otherwise, if the premise does neither, return 1. 

    ### Premise: {premise}

    ### Hypothesis: {hypothesis}

    ### Label:

input_features:
  - name: input
    type: text

output_features:
  - name: label
    type: text
    preprocessing:
      max_sequence_length: 1

trainer:
  type: finetune
  batch_size: auto
  gradient_accumulation_steps: 16
  enable_gradient_checkpointing: true
  epochs: 3
  learning_rate: 2.0e-4
  optimizer:
    type: paged_adam

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