Get stuck when using wandb to evaluate

Beginners
1

Hi, i am trying to fine tune a T5 model with C4_200m dataset, i use cuda and pytorch with my task, here is my training

batch_size = 16
args = Seq2SeqTrainingArguments(output_dir="/content/drive/MyDrive/c4_200m/weights",
                        evaluation_strategy="steps",
                        per_device_train_batch_size=batch_size,
                        per_device_eval_batch_size=batch_size,
                        learning_rate=2e-5,
                        num_train_epochs=1,
                        weight_decay=0.01,
                        save_total_limit=2,
                        predict_with_generate=True,
                        fp16 = True,
                        gradient_accumulation_steps = 6,
                        eval_steps = 500,
                        save_steps = 500,
                        load_best_model_at_end=True,
                        logging_dir="/logs",
                        report_to="wandb")

here is my metric function:

def compute_metrics(eval_pred):
    predictions, labels = eval_pred
    decoded_preds = tokenizer.batch_decode(predictions, skip_special_tokens=True)
    # Replace -100 in the labels as we can't decode them.
    labels = np.where(labels != -100, labels, tokenizer.pad_token_id)
    decoded_labels = tokenizer.batch_decode(labels, skip_special_tokens=True)
    
    # Rouge expects a newline after each sentence
    decoded_preds = ["\n".join(nltk.sent_tokenize(pred.strip())) for pred in decoded_preds]
    decoded_labels = ["\n".join(nltk.sent_tokenize(label.strip())) for label in decoded_labels]
    
    result = rouge_metric.compute(predictions=decoded_preds, references=decoded_labels, use_stemmer=True)
    # Extract a few results
    result = {key: value * 100 for key, value in result.items()}
    
    # Add mean generated length
    prediction_lens = [np.count_nonzero(pred != tokenizer.pad_token_id) for pred in predictions]
    result["gen_len"] = np.mean(prediction_lens)
    return {k: round(v, 4) for k, v in result.items()}

after i run trainer.train(), it will always got stuck at step 500 which is my eval_steps setting.
what is my problem here?

2

Hi @jasonsky , have you figured it out?