Accelerating research in the emerging field of deep graph learning requires new tools. Such systems should support graph as the core abstraction and take care to maintain both forward (i.e. supporting new research ideas) and backward (i.e. integration with existing components) compatibility. In this paper, we present Deep Graph Library (DGL). DGL enables arbitrary message handling and mutation operators, flexible propagation rules, and is framework agnostic so as to leverage high-performance tensor, autograd operations, and other feature extraction modules already available in existing frameworks. DGL carefully handles the sparse and irregular graph structure, deals with graphs big and small which may change dynamically, fuses operations, and performs auto-batching, all to take advantages of modern hardware. DGL has been tested on a variety of models, including but not limited to the popular Graph Neural Networks (GNN) and its variants, with promising speed, memory footprint and scalability.

本文介绍了 Deep Graph Library（DGL）的设计原则和实现方法，DGL 将 GNNs 的计算模式提炼成几个泛化的稀疏张量操作，适合大规模并行化。DGL以图形为中心编程抽象，能够透明地进行优化。同时DGL采用了框架中立的设计，允许用户在多个深度学习框架中轻松移植和利用现有的组件。我们的评估表明，在各种基准测试中，DGL在速度和内存消耗方面都显著优于其他流行的面向GNNs的框架，并且对于小规模工作负载的开销很小。

深度图库：面向图的、高性能的图神经网络包