HCCL Document Overview

• Collective Communication Library User Guide: Introduces basic HCCL concepts, how to use HCCL APIs for collective communication development, how to develop communication operators, and fault handling with common configurations.
• Communication Operator Development Guide (Chinese)：Introduces how to develop communication operators based on the APIs provided by the HCOMM communication foundation library.

Technical Articles

• HCCL—Introduction to the Ascend High-Performance Collective Communication Library (Chinese)
• HCCL Collective Communication Troubleshooting (Chinese)
• Deep Learning Distributed Training and Collective Communication (1) (Chinese)
• Deep Learning Distributed Training and Collective Communication (2) (Chinese)

Training Videos

• Ascend Collective Communication Tutorials — Common Collective Communication Primitives (Chinese)
• Ascend Collective Communication Tutorials — Typical Collective Communication Algorithms (Chinese)
• Ascend Collective Communication Tutorials — Collective Communication Service Development (Chinese)