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A Tunable, Software-Based DRAM Error Detection and Correction Library for HPC

  • David Fiala
  • Kurt B. Ferreira
  • Frank Mueller
  • Christian Engelmann
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7156)

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. Experimental benchmarks with Mantevo HPCCG show that once tuned, LIBSDC is able to achieve SDC protection with 50% overhead of resources, less than the 100% needed for double modular redundancy.

Keywords

Memory Access Fault Tolerance System Call Sandia National Laboratory Normalize Execution Time 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • David Fiala
    • 1
  • Kurt B. Ferreira
    • 2
  • Frank Mueller
    • 1
  • Christian Engelmann
    • 3
  1. 1.Department of Computer ScienceNorth Carolina State UniversityUSA
  2. 2.Scalable System SoftwareSandia National LaboratoriesAlbuquerqueUSA
  3. 3.Oak Ridge National LaboratoriesUSA

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