SCHEDULE: NOV 16-22, 2013

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ACR: Automatic Checkpoint/Restart for Soft and Hard Error Protection

SESSION: Fault-Tolerant Computing

EVENT TYPE: Papers

TIME: 1:30PM - 2:00PM

SESSION CHAIR: Pavan Balaji

AUTHOR(S):Xiang Ni, Esteban Meneses, Nikhil Jain, Laxmikant Kale

ROOM:201/203

ABSTRACT:
As machines increase in scale, many researchers have predicted that failure rates will correspondingly increase. Soft errors do not inhibit execution, but may silently generate incorrect results. Recent trends have shown that soft error rates are increasing, and hence they must be detected and handled to maintain correctness. We present a holistic methodology for automatically detecting and recovering from soft or hard faults with minimal application intervention. This is demonstrated by ACR: an automatic checkpoint/restart framework that performs application replication and automatically adapts the checkpoint period using online information about the current failure rate. ACR performs an application- and user-oblivious recovery. We empirically test ACR by injecting failures that follow different distributions for five applications and show low overhead when scaled to 131,072 cores. We also analyze the interaction between soft and hard errors and propose three recovery schemes that explore the trade-off between performance and reliability requirements.

Chair/Author Details:

Pavan Balaji (Chair) - Argonne National Laboratory

Xiang Ni - University of Illinois at Urbana-Champaign

Esteban Meneses - University of Illinois at Urbana-Champaign

Nikhil Jain - University of Illinois at Urbana-Champaign

Laxmikant Kale - University of Illinois at Urbana-Champaign

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The full paper can be found in the ACM Digital Library