Title: A Log-Scaling Fault Tolerant Agreement Algorithm for a Fault Tolerant MPI
Author(s): Joshua Hursey, Thomas Naughton, Geoffroy Vallee, Richard L. Graham
Abstract:
The lack of fault tolerance is becoming a limiting factor for application scalability in HPC systems. The MPI does not provide standardized fault tolerance interfaces and semantics. The MPI Forum's Fault Tolerance Working Group is proposing a collective fault tolerant agreement algorithm for the next MPI standard. Such algorithms play a central role in many fault tolerant applications, but are rarely scalable to large numbers of processes. This paper replaces the linear operations in the two-phase commit agreement algorithm with log-scaling operations. Additional error handling properties are introduced that preserve the fault tolerance properties while improving overall scalability.
Presented: EuroPVM/MPI '11, September 18th - September 21th, 2011, Santorini, Greece.
Paper:
Bibtex reference:
@InProceedings{hursey11log_validate,
author = {Joshua Hursey and Thomas Naughton and Geoffroy Vallee and Richard L. Graham},
title = {A Log-Scaling Fault Tolerant Agreement Algorithm for a Fault Tolerant {MPI}},
booktitle = {{EuroMPI} 2011: Proceedings of the 18th {EuroMPI} Conference},
year = 2011,
address = {Santorini, Greece},
month = {September},
doi = {http://dx.doi.org/10.1007/978-3-642-24449-0_29}
}
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