Application of SNi PER framework to BESⅢ physics analysis  

作　　者：夏鑫 李腾 黄性涛 张学尧 

机构地区：[1]Shandong University (SDU), Jinan, Shandong 250100, China

出　　处：《Chinese Physics C》2017年第5期186-189,共4页中国物理C（英文版）

基　　金：Supported by Joint Large-Scale Scientific Facility Funds of the NSFC and CAS(U1532258);Program for New Century Excellent Talents in University(NCET-13-0342);Shandong Natural Science Funds for Distinguished Young Scholar(JQ201402);National Key Basic Research Program of China under Contract(2015CB856700)

摘　　要：A fast physics analysis framework has been developed based on SNi PER to process the increasingly large data sample collected by BESⅢ.In this framework,a reconstructed event data model with Smart Ref is designed to improve the speed of Input/Output operations,and necessary physics analysis tools are migrated from BOSS to SNi PER.A real physics analysis e~＋e^-→ π~＋π^-J/ψ is used to test the new framework,and achieves a factor of10.3 improvement in Input/Output speed compared to BOSS.Further tests show that the improvement is mainly attributed to the new reconstructed event data model and the lazy-loading functionality provided by Smart Ref.A fast physics analysis framework has been developed based on SNi PER to process the increasingly large data sample collected by BESⅢ.In this framework,a reconstructed event data model with Smart Ref is designed to improve the speed of Input/Output operations,and necessary physics analysis tools are migrated from BOSS to SNi PER.A real physics analysis e~＋e^-→ π~＋π^-J/ψ is used to test the new framework,and achieves a factor of10.3 improvement in Input/Output speed compared to BOSS.Further tests show that the improvement is mainly attributed to the new reconstructed event data model and the lazy-loading functionality provided by Smart Ref.

关 键 词：reconstructed functionality BOSS attributed operations accelerator stored faster vertex loaded 

分 类 号：O572.21[理学—粒子物理与原子核物理]