OPT-Benchmark

This benchmark is to compare the performance of Colossal-AI and DeepSpeed in terms of its zero redundancy optimizer and offloading. The script is adapted from the Hugging Face example.

Run Benchmarking

First, you need to install the following libraries.

# assuming using cuda 11.3
conda install pytorch==1.11.0 torchvision==0.12.0 torchaudio==0.11.0 cudatoolkit=11.3 -c pytorch
pip install colossalai==0.1.10+torch1.11cu11.3 -f https://release.colossalai.org
pip install accelerate==0.10.0 datasets==1.18.4 transformers==4.21.0 deepspeed==0.6.5 tqdm

To run the benchmarking with different acceleration libraries, you can just execute the following bash script on a single node. We recommend you to run the run_opt_clm.sh script with one GPU first so as to download all the necessary files from Hugging Face.

# run with deepspeed zero 3 + offloading
bash ./run_opt_clm.sh

# run with the current version of colossal-ai zero module
bash ./run_opt_clm_colossalai.sh

# run with the newer (experimental) version of colossal-ai zero module
bash ./run_opt_clm_colossalai_new.sh

Each script has 4 arguments.

• BS: batch size per GPU
• MEMCAP: whether to limit the GPU memory usage. For example, if MEMCAP = 40, the program will only use 40 GB memory even if the GPU has 80 GB. If MEMCAP=0, there is limit on the available GPU memory. The default value is 0.
• MODEL: the variant of the OPT MODEL, default is 13B.
• GPUNUM: the number of GPUs to use, default is 8.