ColossalAI/examples/tutorial/hybrid_parallel

Multi-dimensional Parallelism with Colossal-AI

🚀Quick Start

1. Install our model zoo.

pip install titans

2. Run with synthetic data which is of similar shape to CIFAR10 with the -s flag.

colossalai run --nproc_per_node 4 train.py --config config.py -s

3. Modify the config file to play with different types of tensor parallelism, for example, change tensor parallel size to be 4 and mode to be 2d and run on 8 GPUs.

Install Titans Model Zoo

pip install titans

Prepare Dataset

We use CIFAR10 dataset in this example. You should invoke the donwload_cifar10.py in the tutorial root directory or directly run the auto_parallel_with_resnet.py. The dataset will be downloaded to colossalai/examples/tutorials/data by default. If you wish to use customized directory for the dataset. You can set the environment variable DATA via the following command.

export DATA=/path/to/data

Run on 2*2 device mesh

Current configuration setting on config.py is TP=2, PP=2.

# train with cifar10
colossalai run --nproc_per_node 4 train.py --config config.py

# train with synthetic data
colossalai run --nproc_per_node 4 train.py --config config.py -s