ATLAS I/O performance optimization in as-deployed environments. Issue 4 (December 2015)

• Record Type: Journal Article
• Authors: Maier, T; Benjamin, D; Bhimji, W; Elmsheuser, J; van Gemmeren, P; Malon, D; Krumnack, N
• Is Part Of: Journal of physics. Volume 664:Issue 4(2015)
• Publication Date: 2015-12
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/664/4/042033
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: This paper provides an overview of an integrated program of work underway within the ATLAS experiment to optimise I/O performance for large-scale physics data analysis in a range of deployment environments. It proceeds to examine in greater detail one component of that work, the tuning of job-level I/O parameters in response to changes to the ATLAS event data model, and considers the implications of such tuning for a number of measures of I/O performance.