Unified Programming Models for Heterogeneous High-Performance Computers  

作　　者：马子轩 金煜阳 唐适之 王豪杰 薛伟诚 翟季冬 郑纬民 Zi-Xuan Ma;Yu-Yang Jin;Shi-Zhi Tang;Hao-Jie Wang;Wei-Cheng Xue;Ji-Dong Zhai;Wei-Min Zheng(Department of Computer Science and Technology,Tsinghua University,Beijing 100084,China)

机构地区：[1]Department of Computer Science and Technology,Tsinghua University,Beijing 100084,China

出　　处：《Journal of Computer Science & Technology》2023年第1期211-218,共8页计算机科学技术学报（英文版）

基　　金：partially supported by the National Natural Science Foundation of China under Grant No.62225206.

摘　　要：Unified programming models can effectively improve program portability on various heterogeneous high-performance computers.Existing unified programming models put a lot of effort to code portability but are still far from achieving good performance portability.In this paper,we present a preliminary design of a performance-portable unified programming model including four aspects:programming language,programming abstraction,compilation optimization,and scheduling system.Specifically,domain-specific languages introduce domain knowledge to decouple the optimizations for different applications and architectures.The unified programming abstraction unifies the common features of different architectures to support common optimizations.Multi-level compilation optimization enables comprehensive performance optimization based on multi-level intermediate representations.Resource-aware lightweight runtime scheduling system improves the resource utilization of heterogeneous computers.This is a perspective paper to show our viewpoints on programming models for emerging heterogeneous systems.

关 键 词：performance portability programming model heterogeneous supercomputer 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]