摘要
随着计算机技术的发展,64位系统逐渐替代32位系统,这对BESIII离线物理软件(BOSS)来说,既是机遇,又是挑战。升级到64位系统将大大提高软件的性能,但是BESIII离线物理软件十分庞大且算法复杂,而64位系统较32位系统,数据模型、CPU计算模式等诸多方面发生改变,将不同程度地影响算法精度和软件性能,这使得BESIII离线物理软件在64位系统的升级变得复杂而繁琐。论文阐述了BESIII离线物理软件系统从32位系统到64位系统的升级过程,剖析了升级过程中遇到的关键问题,最后对软件升级前后的物理结果和性能进行了比对和分析。
With the development of computing, 64 -bit systems are taking place of 32 -bit systems, which is both a challenge and opportunity for the BESⅢoffline software. Updating BESIII offline software to 64 - bit systems will improve software performance significantly. But on the other hand BESⅢ offline software is so large and complicated, and comparing to 32 - bit systems, there are significantly changes in many aspects in 64 - bit systems, such as data modules, CPU computing model, which make upgradi ticle, we will describe the procedure of the upgrading, explain the key prob final physics results and performance. ng hard and complicated. In the ar- lems met, and compare and analyze
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2012年第10期1129-1133,共5页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金委员会-中国科学院大科学装置联合基金资助(11179020)
