Delete app.py

app.py

@@ -1,128 +0,0 @@
-import os
-
-import torch
-import trl
-
-from transformers import AutoTokenizer, LlamaConfig, LlamaForCausalLM, TrainingArguments, PreTrainedTokenizerFast
-from datasets import load_dataset
-from tokenizers import ByteLevelBPETokenizer
-
-MAX_SEQ_LENGTH = 128
-BATCH_SIZE = 256
-EPOCHS = 8
-LEARNING_RATE = 1e-4
-FP16 = True
-FACTOR = 2
-VOCAB_SIZE = 3200
-INPUT_DATASET = "nroggendorff/elephant"
-OUTPUT_REPO = "smallama"
-
-def load_data():
-    dataset = load_dataset(INPUT_DATASET, split="train")
-    return dataset
-
-def create_tokenizer(training_corpus):
-    tokenizer = ByteLevelBPETokenizer()
-    tokenizer.train_from_iterator(
-        training_corpus,
-        vocab_size=VOCAB_SIZE,
-        min_frequency=2,
-        special_tokens=["<s>", "<pad>", "</s>", "<unk>", "<mask>", "<|user|>", "<|bot|>", "<|end|>"]
-    )
-
-    fast_tokenizer = PreTrainedTokenizerFast(tokenizer_object=tokenizer._tokenizer)
-    return fast_tokenizer
-
-def get_training_corpus(dataset):
-    for i in range(0, len(dataset), 1000):
-        yield dataset[i : i + 1000]["text"]
-
-def format_prompts(examples, tokenizer):
-    texts = []
-    for text in examples['text']:
-        conversation = []
-        parts = text.split('<|end|>')
-        for i in range(0, len(parts) - 1, 2):
-            prompt = parts[i].replace("<|user|>", "")
-            response = parts[i + 1].replace("<|bot|>", "")
-            conversation.append({"role": "user", "content": prompt})
-            conversation.append({"role": "assistant", "content": response})
-        formatted_conversation = tokenizer.apply_chat_template(conversation, tokenize=False)
-        texts.append(formatted_conversation)
-    return {"text": texts}
-
-def create_model(tokenizer):
-    config = LlamaConfig(
-        vocab_size=tokenizer.vocab_size,
-        hidden_size=FACTOR,
-        intermediate_size=FACTOR * 2,
-        num_hidden_layers=max(1, FACTOR // 64),
-        num_attention_heads=max(1, FACTOR // 64),
-        max_position_embeddings=MAX_SEQ_LENGTH,
-        rms_norm_eps=1e-6,
-        initializer_range=0.02,
-        use_cache=True,
-        pad_token_id=tokenizer.pad_token_id,
-        bos_token_id=tokenizer.bos_token_id,
-        eos_token_id=tokenizer.eos_token_id,
-        tie_word_embeddings=False,
-    )
-    
-    model = LlamaForCausalLM(config)
-    return model
-
-def configure_tokenizer(tokenizer):
-    special_tokens = {
-        "bos_token": "<s>",
-        "eos_token": "</s>",
-        "unk_token": "<unk>",
-        "pad_token": "<pad>",
-        "mask_token": "<mask>",
-        "additional_special_tokens": ["<|user|>", "<|bot|>", "<|end|>"]
-    }
-    tokenizer.add_special_tokens(special_tokens)
-    
-    tokenizer.user_token_id = tokenizer.convert_tokens_to_ids("<|user|>")
-    tokenizer.assistant_token_id = tokenizer.convert_tokens_to_ids("<|bot|>")
-    
-    chat_template = "{{ bos_token }}{% for message in messages %}{% if (message['role'] == 'user') != (loop.index0 % 2 == 0) %}{{ raise_exception('Conversation roles must alternate user/assistant/user/assistant/...') }}{% endif %}{% if message['role'] == 'user' %}{{ '<|user|>\n' + message['content'] + '<|end|>\n' }}{% elif message['role'] == 'assistant' %}{{ '<|bot|>\n' + message['content'] + '<|end|>\n' }}{% else %}{{ raise_exception('Only user and assistant roles are supported!') }}{% endif %}{% endfor %}{{ eos_token }}"
-    tokenizer.chat_template = chat_template
-
-def train_model(model, tokenizer, dataset):
-    args = TrainingArguments(
-        output_dir="model",
-        num_train_epochs=EPOCHS,
-        per_device_train_batch_size=BATCH_SIZE,
-        learning_rate=LEARNING_RATE,
-        fp16=FP16,
-        optim="sgd"
-    )
-    dataset = dataset.map(lambda examples: format_prompts(examples, tokenizer), batched=True)
-    trainer = trl.SFTTrainer(
-        model=model,
-        tokenizer=tokenizer,
-        args=args,
-        train_dataset=dataset,
-        dataset_text_field='text',
-        max_seq_length=MAX_SEQ_LENGTH
-    )
-    trainer.train()
-    
-    trained_model = trainer.model
-    trained_tokenizer = trainer.tokenizer
-    
-    repo_id = OUTPUT_REPO
-    trained_model.push_to_hub(repo_id)
-    trained_tokenizer.push_to_hub(repo_id)
-
-def main():
-    dataset = load_data()
-    training_corpus = get_training_corpus(dataset)
-    tokenizer = create_tokenizer(training_corpus)
-    configure_tokenizer(tokenizer)
-    model = create_model(tokenizer)
-    train_model(model, tokenizer, dataset)
-
-if __name__ == "__main__":
-    main()
-    raise RuntimeError("The script is finished.")