CMS High Level Trigger performance comparison on CPUs and GPUs

被引：3
|
作者：
Bocci, Andrea [1 ]
机构：
[1] CERN, EP CMD, Geneva, Switzerland
来源：
20TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS TECHNIQUES IN PHYSICS RESEARCH | 2023年 / 2438卷
关键词：
D O I：
10.1088/1742-6596/2438/1/012016
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
At the start of the upcoming LHC Run-3, CMS will deploy a heterogeneous High Level Trigger (HLT) farm composed of x86 CPUs and NVIDIA GPUs. In order to guarantee that the HLT can run on machines without any GPU accelerators - for example as part of the large scale Monte Carlo production running on the grid, or when individual developers need to optimise specific triggers - the HLT reconstruction has been implemented both for NVIDIA GPUs and for traditional CPUs. This contribution will describe how the CMS software used online and offline (CMSSW) can transparently switch between the two implementations, and compare their performance on GPUs and CPUs from different architectures, vendors and generations.
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页数：6
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