摘要
高能物理一直是计算机技术发展与应用的先驱者。随着大型强子对撞机LHC和北京正负电子对撞机BEPCII等新一代高能物理实验开始运行,网格计算已经成为高能物理研究的重要工具。世界各地的大批科研单位参与了国际高能物理网格系统的建设。高能物理网格不仅成功地为国际高能物理提供分布式高性能计算服务,同时还成为大量非高能物理领域采用的科学计算平台。在中国科学院、国家自然科学基金委及科技部的支持下,高能物理研究所建立了一个数据密集型网格平台站点并加入了国际高能物理网格。数据密集型网格站点目前由1600个CPU内核的集群和600TB的磁盘存储组成,与欧洲和北美的高速网络带宽分别达到1Gbps和622Mbps,每年提供数百万CPU小时的计算服务,支持的应用包括高能物理、天体物理与宇宙线物理、生物信息以及地球动力学等等。高能物理研究所还帮助国内的若干大学和研究所建立了网格站点,形成国内跨地域的网格平台。
High energy physics (HEP) has always been the pioneer on the development and applications of computer science. As the new generation of HEP experiments, LHC and BEPCII as examples started to be operational, grid computing has become an integral part of the practice of high energy physics. A large scale grid computing infrastructure, namely WLCG or Worldwide LHC Computing Grid, has been being built and is providing high performance computing services of data process and physics analysis. Institute of High Energy Physics (IHEP) is one of important grid sites of WLCG. The WLCG is so successful that it is not just used by HEP project but also adopted by large number of different disciplines of science activities. This work will present an overview of WLCG and status of HEP grid computing in China. The IHEP site at the time consists of 1600 CPU cores as computing nodes and 600 TB disks as the storage resource. The high bandwidth dedicated links of 622 Mbps to the US and 1 Gbps to Europe were used for data transfer and job distribution. In the period of past one year, the IHEP site provided about seven million CPUhours of computing service to HEP as well as cosmic ray research, bioinformatics and geodynamics. A federation of HEP Grid was established between institutes and universities in the country.
出处
《科研信息化技术与应用》
2011年第1期49-59,共11页
E-science Technology & Application
基金
中国科学院知识创新工程重大项目(项目编号KJCX1-YW-17)
中国科学院信息化专项e-Science示范项目(项目编号INFO-115-D01-Z002)
国家自然科学基金(项目编号90912004)
科技部863项目(项目编号2006AA01A120)的支持
关键词
网格
数据密集型计算
高能物理
中间件
计算平台
Grid
Data intensive computing
High energy physics
Middleware
Computingplatform