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SCHEDULE: NOV 16-21, 2014
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Correctness Field Testing of Production and Decommissioned High Performance Computing Platforms at Los Alamos National Laboratory
SESSION: Hardware Vulnerability and Recovery
EVENT TYPE: Papers
TIME: 2:30PM - 3:00PM
SESSION CHAIR: Alison Kennedy
AUTHOR(S):Sarah E. Michalak, William N. Rust, John T. Daly, Andrew J. DuBois, David H. DuBois
ROOM:393-94-95
ABSTRACT:
Silent Data Corruption (SDC) can threaten the integrity of
scientific calculations performed on high performance computing
(HPC) platforms and other systems. To characterize this issue,
correctness field testing of HPC platforms at Los Alamos National
Laboratory was performed. This work presents results for 12
platforms, including over 1,000 node-years of computation performed
on over 8,750 compute nodes and over 260 PB of data transfers
involving nearly 6,000 compute nodes, and relevant lessons learned.
Incorrect results characteristic of transient errors and of
intermittent errors were observed. These results are a key
underpinning to resilience efforts as they provide signatures of
incorrect results observed under field conditions. Five incorrect
results consistent with a transient error mechanism were observed,
suggesting that the effects of transient errors could be
mitigated. However, the observed numbers of incorrect results consistent with
an intermittent error mechanism suggest that intermittent errors could
substantially effect computational correctness.
Chair/Author Details:
Alison Kennedy (Chair) - Edinburgh Parallel Computing Centre
Sarah E. Michalak - Los Alamos National Laboratory
William N. Rust - Los Alamos National Laboratory
John T. Daly - Laboratory for Physical Sciences
Andrew J. DuBois - Los Alamos National Laboratory
David H. DuBois - Los Alamos National Laboratory
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