He Guo

Professor   Supervisor of Doctorate Candidates   Supervisor of Master's Candidates

Gender:Male

Alma Mater:大连理工大学

Degree:Master's Degree

School/Department:软件学院、国际信息与软件学院

Contact Information:guohe@dlut.edu.cn

E-Mail:guohe@dlut.edu.cn


Paper Publications

Performance Optimization of a DEM Simulation Framework on GPU Using a Stencil Model

Hits:

Indexed by:会议论文

Date of Publication:2015-07-26

Included Journals:EI、CPCI-S

Volume:9576

Page Number:113-119

Key Words:DEM; GPU computing; Performance optimization; Stencil model

Abstract:High performance and efficiency for parallel computing has significance in large scale discrete element method (DEM) simulation. After analyzing a simulation framework of DEM built on a Graphic Processor Unit (GPU) platform with CUDA architecture and evaluating the simulated data, we propose three optimization methods to improve the performance of a system. A stencil computation model is applied to the particle searching and calculation of forces based on gridding to formulate the structure in the particle-particle contact and neighboring particle searching. In addition, a reasonable and effective parallel granularity is sought out by altering the number of blocks and threads on GPU. A shared-memory environment is set up for data prefetching and storing the results of intermediate calculations by a rational analysis and calculations. The results of the experiment show that the stencil model is useful for the particle searching and calculation of forces and the rational parallel granularity as well as the fair use of shared memory optimizes the performance of the DEM simulation frame-work.

Pre One:Feature points matching based on geometric constraints

Next One:带通信开销的DAG工作流费用优化模型与算法

Profile

教育背景:

  • 学士学位:吉林大学计算机系,1982

  • 硕士学位:大连理工大学计算机系,1989

科研与工作经历:

  • 198610月—198710月,新西兰Progeni Company,访问学者

  • 199010月—199212月,德国PDI Karlsruhe University计算机系,访问学者

  • 199212月—200712月,大连理工大学计算机系,副教授

  • 19953月—19966月,大连市金卡工程系统,总工程师

  •  

  • 20081月—今,大连理工大学软件学院,教授

  • 20204 退休

教学工作:

  • 1992年—2007年,计算机导论,计算机组织与结构,计算机系统结构

  • 2009年—2019年,存储技术,计算机系统结构,并行计算

科研:

  • 研究兴趣:并行与分布式计算。