학술논문
Novel features and GPU performance analysis for EM particle transport in the Celeritas code.
Document Type
Article
Author
Source
Subject
*GRAPHICS processing units
*PARTICLE physics
*LARGE Hadron Collider
*HIGH performance computing
*MONTE Carlo method
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Language
ISSN
2101-6275
Abstract
Celeritas is a new computational transport code designed for high-performance simulation of high-energy physics detectors. This work describes some of its current capabilities and the design choices that enable the rapid development of efficient on-device physics. The abstractions that underpin the code design facilitate low-level performance tweaks that require no changes to the higher-level physics code. We evaluate a set of independent changes that together yield an almost 40% speedup over the original GPU code for a net performance increase of 220× for a single GPU over a single CPU running 8.4M tracks on a small demonstration physics app. [ABSTRACT FROM AUTHOR]