Multi-core job submission and grid resource scheduling for ATLAS AthenaMP

Crooks, D. et al. (2012) Multi-core job submission and grid resource scheduling for ATLAS AthenaMP. In: International Conference on Computing in High Energy and Nuclear Physics (CHEP 2012), New York, NY, USA, 21-25 May 2012, 032115. (doi:10.1088/1742-6596/396/3/032115)

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AthenaMP is the multi-core implementation of the ATLAS software framework and allows the efficient sharing of memory pages between multiple threads of execution. This has now been validated for production and delivers a significant reduction on the overall application memory footprint with negligible CPU overhead. Before AthenaMP can be routinely run on the LHC Computing Grid it must be determined how the computing resources available to ATLAS can best exploit the notable improvements delivered by switching to this multi-process model. A study into the effectiveness and scalability of AthenaMP in a production environment will be presented. Best practices for configuring the main LRMS implementations currently used by grid sites will be identified in the context of multi-core scheduling optimisation.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Skipsey, Dr Samuel and Crooks, Dr David and Purdie, Dr Stuart
Authors: Crooks, D., Calafiura, P., Harrington, R., Jha, M., Maeno, T., Purdie, S., Severini, H., Skipsey, S., Tsulaia, V., Walker, R., and Washbrook, A.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Physics: Conference Series
Copyright Holders:Copyright © 2012 The Authors
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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