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Journal Articles Concurrency and Computation: Practice and Experience Year : 2013

Unified Model for Assessing Checkpointing Protocols at Extreme-Scale

George Bosilca
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Elisabeth Brunet
Jack Dongarra
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Thomas Herault
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In this paper, we present a unified model for several well-known checkpoint/restart protocols. The proposed model is generic enough to encompass both extremes of the checkpoint/restart space, from coordinated approaches to a variety of uncoordinated checkpoint strategies (with message logging). We identify a set of crucial parameters, instantiate them and compare the expected efficiency of the fault tolerant protocols, for a given application/platform pair. We then propose a detailed analysis of several scenarios, including some of the most powerful currently available HPC platforms, as well as anticipated Exascale designs. The results of this analytical comparison are corroborated by a comprehensive set of simulations. Altogether, they outline comparative behaviors of checkpoint strategies at very large scale, thereby providing insight that is hardly accessible to direct experimentation.
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Dates and versions

hal-00908447 , version 1 (23-11-2013)



George Bosilca, Aurélien Bouteiller, Elisabeth Brunet, Franck Cappello, Jack Dongarra, et al.. Unified Model for Assessing Checkpointing Protocols at Extreme-Scale. Concurrency and Computation: Practice and Experience, 2013, 26 (17), pp.2727-2810. ⟨10.1002/cpe.3173⟩. ⟨hal-00908447⟩
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