Performance benchmark of LHCb code on state-of-the-art x86 architectures

21st International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Campora Perez, D.H.^1 ; Neufeld, N.^1 ; Schwemmer, R.^1

CERN, Geneva

CH-1211-23, Switzerland^1

关键词: Blade servers;    Event Filters;    High-level triggers;    On state;    Optimal number;    Relative costs;    Stand -alone;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/664/9/092022/pdf
DOI  :  10.1088/1742-6596/664/9/092022

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

For Run 2 of the LHC, LHCb is replacing a significant part of its event filter farm with new compute nodes. For the evaluation of the best performing solution, we have developed a method to convert our high level trigger application into a stand-alone, bootable benchmark image. With additional instrumentation we turned it into a self-optimising benchmark which explores techniques such as late forking, NUMA balancing and optimal number of threads, i.e. it automatically optimises box-level performance. We have run this procedure on a wide range of Haswell-E CPUs and numerous other architectures from both Intel and AMD, including also the latest Intel micro-blade servers. We present results in terms of performance, power consumption, overheads and relative cost.