Train Large Text Prediction Models with Lightning

Run • Lightning AI • Docs

---

Use Lightning train large language model for text generation, with as many parameters as you want (up to billions!).

You can do this:

• using multiple GPUs
• across multiple machines
• with the most advanced and efficient training techniques
• on your own data
• all without any infrastructure hassle!

All handled easily with the Lightning Apps framework.

Prediction Example

A typical example of text prediction could look like this:

Prompt: Please be aware of the

Prediction: situation

Run

To run paste the following code snippet in a file app.py:

#! pip install git+https://github.com/Lightning-AI/lightning-LLMs git+https://github.com/Lightning-AI/LAI-Text-Prediction-Component
#! curl https://cs.stanford.edu/people/karpathy/char-rnn/shakespeare_input.txt --create-dirs -o ${HOME}/data/shakespeare/input.txt -C -


import lightning as L
import os, torch
from lightning_gpt import models
from lit_llms.tensorboard import (
    DriveTensorBoardLogger,
    MultiNodeLightningTrainerWithTensorboard,
)

from lai_textpred import default_callbacks, gpt_20b, WordDataset, error_if_local


class WordPrediction(L.LightningWork):
    def __init__(self, *args, tb_drive, **kwargs):
        super().__init__(*args, **kwargs)
        self.tensorboard_drive = tb_drive

    def run(self):
        error_if_local()

        # -------------------
        # CONFIGURE YOUR DATA
        # -------------------
        with open(os.path.expanduser("~/data/shakespeare/input.txt")) as f:
            text = f.read()
        train_dataset = WordDataset(text, 5)
        train_loader = torch.utils.data.DataLoader(
            train_dataset, batch_size=160, num_workers=4, shuffle=True
        )

        # --------------------
        # CONFIGURE YOUR MODE
        # --------------------
        model = models.DeepSpeedMinGPT(
            vocab_size=train_dataset.vocab_size,
            block_size=int(train_dataset.block_size),
            fused_adam=False,
            model_type=None,
            **gpt_20b,
        )

        # -----------------
        # RUN YOUR TRAINING
        # -----------------
        trainer = L.Trainer(
            max_epochs=2,
            limit_train_batches=250,
            precision=16,
            strategy="deepspeed_stage_3_offload",
            callbacks=default_callbacks(),
            log_every_n_steps=5,
            logger=DriveTensorBoardLogger(save_dir=".", drive=self.tensorboard_drive),
        )
        trainer.fit(model, train_loader)


app = L.LightningApp(
    MultiNodeLightningTrainerWithTensorboard(
        WordPrediction,
        num_nodes=3,
        cloud_compute=L.CloudCompute("gpu-fast-multi"),
    )
)

Running on the cloud

lightning run app app.py --cloud

Don't want to use the public cloud? Contact us at product@lightning.ai for early access to run on your private cluster (BYOC)!

Running locally

This example is optimized for the cloud. It is therefore not possible to run this app locally. Please refer to our text classification example for a similar app to run locally.