SCHEDULE: NOV 12-18, 2011

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Scalable Message Logging for HPC Applications

SESSION: Doctoral Research Showcase (2 of 2)

EVENT TYPE: Doctoral Research Showcase

TIME: 3:45PM - 4:00PM

SESSION CHAIR: Volodymyr Kindratenko

Presenter(s):Esteban Meneses

ROOM:TCC LL1

ABSTRACT:
In the Exascale era, the evolution of supercomputing will bring massive machines comprising millions of cores and a similar number of components. In those complex machines adaptivity will be fundamental. One dimension of adaptivity, fault tolerance, is considered one of the main challenges for systems of that size. Some estimates project an Exascale machine will fail several times per hour. To deal with a high frequency of failures, it is necessary to go beyond traditional checkpoint/restart approaches, where all processing elements are rolled back to their latest checkpoint even after the crash of only one of them. Message logging is a promising alternative which, nevertheless, faces various challenges. This work addresses the major drawbacks of message logging and provides a set of techniques that will make it an effective solution to provide resilience for Exascale machines.

Chair/Presenter Details:

Volodymyr Kindratenko (Chair) - NCSA

Esteban Meneses - University of Illinois at Urbana-Champaign

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