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arXiv · 1310.8456

Optimal Checkpointing Period: Time vs. Energy

Guillaume Aupy·Anne Benoit·Thomas Hérault·Yves Robert·Jack Dongarra
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Abstract

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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Guillaume Aupy, Anne Benoit, Thomas Hérault, Yves Robert, Jack Dongarra. 2013-10-31. Optimal Checkpointing Period: Time vs. Energy. https://arxiv.org/abs/1310.8456

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