基于“嵩山”超级计算机系统的量子傅里叶变换模拟  

Quantum Fourier Transform Simulation Based on“Songshan”Supercomputer System

作　　者：谢景明 胡伟方 韩林 赵荣彩 荆丽娜 XIE Jing-ming;HU Wei-fang;HAN Lin;ZHAO Rong-cai;JING Li-na(Information Engineering Institute,Zhengzhou University,Zhengzhou 450000,China;Henan Supercomputing Center,Zhengzhou University,Zhengzhou 450000,China;Zhong Yuan Network Security Research Institute,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学信息工程学院,郑州450000 [2]郑州大学河南省超算中心,郑州450000 [3]郑州大学中原网络安全研究院,郑州450001

出　　处：《计算机科学》2021年第12期36-42,共7页Computer Science

基　　金：国家重点研发计划(2018YFB0505000)。

摘　　要："嵩山"超级计算机系统是中国自主研发的新一代异构超级计算机集群,其搭载的CPU和DCU加速器均为我国自主研发。为扩充该平台的科学计算生态,验证量子计算研究在该平台上开展的可行性,文中使用异构编程模型实现了量子傅里叶变换模拟在"嵩山"超级计算机系统上的异构版本,将程序的计算热点部分分配至DCU上运行;然后使用MPI在单计算节点上开启多进程,实现DCU加速器数据传输和计算的并发;最后,通过计算与通信的隐藏避免了DCU在数据传输时处于较长时间的空闲状态。实验首次在超算系统上实现了44 Qubits规模的量子傅里叶变换模拟,结果显示,异构版本的量子傅里叶变换模拟充分利用了DCU加速器计算资源,相较于传统CPU版本,其取得了11.594的加速比,且在集群上具有良好的可拓展性,该方法为其他量子算法在"嵩山"超级计算机系统上的模拟实现以及优化提供了参考。The“Songshan”supercomputer system is a new generation of heterogeneous supercomputer cluster independently developed by China.The CPU and DCU accelerators it carries are all independently developed by my country.In order to expand the scientific computing ecology of the platform and verify the feasibility of quantum computing research on this platform,the paper uses a heterogeneous programming model to implement a heterogeneous version of the quantum Fourier transform simulation on the“Songshan”supercomputer system.The computing hotspots of the program are allocated to run on the DCU;then MPI is used to enable multiple processes on a single computing node to realize the concurrent data transmission and calculation of the DCU accelerator;finally,the hiding of computing and communication prevents the DCU from being in the middle of data transmission.The experiment implements a 44 Qubits-scale quantum Fourier transform simulation on a supercomputing system for the first time.The results show that the heterogeneous version of the quantum Fourier transform module makes full use of the computing resources of the DCU accelerator and achieves 11.594 compared to the traditional CPU version.The speedup ratio is high,and it has good scalability on the cluster.This implementation method provides a reference for the simulation implementation and optimization of other quantum algorithms on the“Songshan”supercomputer system.

关 键 词：异构计算 量子傅里叶变换 DCU加速器 HIP-C MPI 通信隐藏 

分 类 号：TP387[自动化与计算机技术—计算机系统结构]