Coarse grain computation-communication overlap for efficient application-level checkpointing for GPUs
Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA
IEEE International Conference on Electro/Information Technology (EIT), 2010
@inproceedings{solano2010coarse,
title={Coarse grain computation-communication overlap for efficient application-level checkpointing for GPUs},
author={Solano-Quinde, L.D. and Bode, B.M. and Somani, A.K.},
booktitle={Electro/Information Technology (EIT), 2010 IEEE International Conference on},
pages={1–5},
organization={IEEE},
year={2010}
}
Graphics Processing Units (GPUs) are increasingly used to solve non-graphical scientific problems. However, it has been shown that the reliability of the GPUs is a concern because of the occurrence of the soft and hard errors. The checkpoint/restart is the most commonly used technique to achieve fault tolerance in the presence of failures. This work present an application-level checkpoint scheme for systems composed of GPUs. Our scheme exploits the benefits of the divide-and-conquer technique and of the communication-computation overlapping to improve the execution time and checkpoint overhead. By dividing the problem and checkpointing in n subprocesses, we show that our scheme improves the checkpoint overhead by a factor of n. We also show that dividing the problem with finer granularity is not beneficial.
June 17, 2011 by hgpu
