| BESⅢ实验数据并行处理的研究 |
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| 引用本文： | 田浩来,李卫东,邹佳恒,何苗,毛泽普,刘春秀,袁野,黄彬,毛虎,邓子艳,马秋梅.BESⅢ实验数据并行处理的研究[J].核电子学与探测技术,2012(2):132-135,140. |
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| 作者姓名： | 田浩来 李卫东 邹佳恒 何苗 毛泽普 刘春秀 袁野 黄彬 毛虎 邓子艳 马秋梅 |
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| 作者单位： | 中国科学院高能物理研究所 |
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| 基金项目： | 科技部973项目(2009CB825200);国家自然科学基金资助(10821063,10875141,10705034,Y0113M005C) |
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| 摘 要： | 北京谱仪Ⅲ(BESⅢ)是北京正负电子对撞机Ⅱ(BEPCⅡ)上的一台大型通用磁谱仪,用于τ-粲物理实验研究。BESⅢ离线数据处理系统将实验获取的探测器原始数据转换为适合于物理分析的数据。主要研究了BESⅢ实验数据的并行计算处理。针对目前计算机的多核CPU硬件结构,采用多线程编程技术,实现了BESⅢ离线数据处理事例级别的多线程并行计算。性能测试表明多线程并行处理能够有效地提高运算速度,同时减少内存消耗。
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| 关 键 词： | 北京谱仪Ⅲ 离线数据处理 多线程 事例级并行计算 |
The Studies of Parallel Data Processing for the BESⅢ Experiment |
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| TIAN Hao-lai,LI Wei-dong,ZOU Jia-heng,HE Miao,MAO Ze-pu,LIU Chun-xiu, YUAN Ye,HUANG Bin,MAO Hu,DENG Zi-yan,MA Qiu-mei.The Studies of Parallel Data Processing for the BESⅢ Experiment[J].Nuclear Electronics & Detection Technology,2012(2):132-135,140. |
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| Authors: | TIAN Hao-lai LI Wei-dong ZOU Jia-heng HE Miao MAO Ze-pu LIU Chun-xiu YUAN Ye HUANG Bin MAO Hu DENG Zi-yan MA Qiu-mei |
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| Affiliation: | (Institute of High Energy Physics,CAS,Beijing,100049,China) |
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| Abstract: | The Beijing Spectrometer Ⅲ(BESⅢ) is a general-purpose detector at Beijing Electron Positron Collider Ⅱ(BEPCⅡ) for the τ-charm physics study.The raw data from detector is processed by the offline data processing system to produce the data suitable for physics analysis.It mainly studies the parallel processing of the BESIII experimental data.In order to benefit from the multi-core CPU architecture,we have developed software for parallel data processing at event level by using multi-threading techniques.The performance tests show that the implementation of multi-threaded parallel processing can significantly improve program’s running speed with more efficient usage of memory. |
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| Keywords: | BESⅢ offline data processing multi-thread event-level parallel computing |
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