21-27 March 2009
Prague
Europe/Prague timezone

Benchmarking the ATLAS software though the Kit Validation engine

23 Mar 2009, 08:00
1h
Prague

Prague

Prague Congress Centre 5. května 65, 140 00 Prague 4, Czech Republic
Board: Monday 022
poster Software Components, Tools and Databases Poster session

Speaker

Alessandro De Salvo (Istituto Nazionale di Fisica Nucleare Sezione di Roma 1)

Description

The measurement of the experiment software performances is a very important metric in order to choose the most effective resources to be used and to discover the bottlenecks of the code implementation. In this work we present the benchmark techniques used to measure the ATLAS software performance through the ATLAS offline testing engine Kit Validation and the online portal Global Kit Validation. The performance measurements, the data collection, the online analysis and display of the results will be presented. The results of the measurement on different platforms and architectures will be shown, giving a full report on the CPU power and memory consumption of the Monte Carlo generation, simulation, digitization and reconstruction of the most CPU-intensive channels. The impact of the multi-core computing on the ATLAS software performance will also be presented, comparing the behavior of different architectures when increasing the number of concurrent processes. The benchmark techniques described in this paper have been used in the HEPiX group since the beginning of 2008 to help defining the performance metrics for the High Energy Physics applications, based on the real experiment software.

Primary authors

Alessandro De Salvo (Istituto Nazionale di Fisica Nucleare Sezione di Roma 1) Franco Brasolin (Università & INFN, Bologna)

Presentation Materials