• Corpus ID: 220301566

Data Movement Is All You Need: A Case Study on Optimizing Transformers

@article{Ivanov2021DataMI,
  title={Data Movement Is All You Need: A Case Study on Optimizing Transformers},
  author={Andrei Ivanov and Nikoli Dryden and Tal Ben-Nun and Shigang Li and Torsten Hoefler},
  journal={ArXiv},
  year={2021},
  volume={abs/2007.00072}
}
Transformers have become widely used for language modeling and sequence learning tasks, and are one of the most important machine learning workloads today. Training one is a very compute-intensive task, often taking days or weeks, and significant attention has been given to optimizing transformers. Despite this, existing implementations do not efficiently utilize GPUs. We find that data movement is the key bottleneck when training. Due to Amdahl's Law and massive improvements in compute… 

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