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Conference Papers Year : 2013

Optimal Checkpointing Period: Time vs. Energy


This short paper deals with parallel scientific applications using non-blocking and periodic coordinated checkpointing to enforce resilience. We provide a model and detailed formulas for total execution time and consumed energy. We characterize the optimal period for both objectives, and we assess the range of time/energy trade-offs to be made by instantiating the model with a set of realistic scenarios for Exascale systems. We give a particular emphasis to I/O transfers, because the relative cost of communication is expected to dramatically increase, both in terms of latency and consumed energy, for future Exascale platforms.
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Dates and versions

hal-00926199 , version 1 (09-01-2014)


  • HAL Id : hal-00926199 , version 1


Guillaume Aupy, Anne Benoit, Thomas Hérault, Yves Robert, Jack Dongarra. Optimal Checkpointing Period: Time vs. Energy. Performance Modeling, Benchmarking and Simulation of High Performance Computer Systems, Nov 2013, Denver, United States. ⟨hal-00926199⟩
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