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A Tunable, Software-based DRAM Error Detection and Correction Library for HPC
SESSION: Research Poster Reception
EVENT TYPE: ACM Student Research Competition Poster, Poster, Electronic Poster
TIME: 5:15PM - 7:00PM
SESSION CHAIR: Bernd Mohr
AUTHOR(S):David Fiala, Kurt Ferreira, Frank Mueller, Christian Engelmann
ROOM:WSCC North Galleria 2nd/3rd Floors
ABSTRACT: Proposed exascale systems will present a number of considerable resiliency challenges. In particular, DRAM soft-errors, or bit-flips, are expected to greatly increase due to the increased memory density of these systems. Current hardware-based fault-tolerance methods will be unsuitable for addressing the expected soft error frequency rate. As a result, additional software will be needed to address this challenge. In this paper we introduce LIBSDC, a tunable, transparent silent data corruption detection and correction library for HPC applications. LIBSDC provides comprehensive SDC protection for program memory by implementing on-demand page integrity verification by utilizing the MMU. Experimental benchmarks with Mantevo HPCCG show that once tuned, LIBSDC is able to achieve SDC protection with less than 100% overhead of resources.
Bernd Mohr (Chair) - Juelich Supercomputing Centre
David Fiala - North Carolina State University
Kurt Ferreira - Sandia National Laboratories
Frank Mueller - North Carolina State University
Christian Engelmann - Oak Ridge National Laboratory