OpenSeq2Seq: toolkit for distributed and mixed precision training of sequence-to-sequence models

This is a research project, not an official NVIDIA product.

Documentation: https://nvidia.github.io/OpenSeq2Seq/

OpenSeq2Seq main goal is to allow researchers to most effectively explore various sequence-to-sequence models. The efficiency is achieved by fully supporting distributed and mixed-precision training. OpenSeq2Seq is built using TensorFlow and provides all the necessary building blocks for training encoder-decoder models for neural machine translation and automatic speech recognition. We plan to extend it with other modalities in the future.

Features

1. Sequence to sequence learning. Currently implemented:
   1. Neural Machine Translation (text2text)
   2. Automatic Speech Recognition (speech2text)
   3. Speech Synthesis (text2speech)
2. Data-parallel distributed training
   1. Multi-GPU
   2. Multi-node
3. Mixed precision training for NVIDIA Volta GPUs

Software Requirements

1. TensorFlow >= 1.9
2. Horovod >= 0.12.0 (using Horovod is not required, but is highly recommended for multi-GPU setup)

Acknowledgments

Speech-to-text workflow uses some parts of Mozilla DeepSpeech project.

Text-to-text workflow uses some functions from Tensor2Tensor and Neural Machine Translation (seq2seq) Tutorial.

Related resources

• Tensor2Tensor
• Neural Machine Translation (seq2seq) Tutorial
• OpenNMT
• Sockeye
• TF-seq2seq
• Moses

Paper

If you use OpenSeq2Seq, please cite this paper

@article{openseq2seq,
  title={
OpenSeq2Seq: extensible toolkit for distributed and mixed precision training of sequence-to-sequence models},
  author={Kuchaiev, Oleksii and Ginsburg, Boris and Gitman, Igor and Lavrukhin, Vitaly and  Case, Carl and Micikevicius, Paulius},
  journal={arXiv preprint arXiv:1805.10387},
  year={2018}
}