sponsored byIEEEACMThe International Conference for High Performance 
Computing, Networking, Storage and Analysis
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SCHEDULE: NOV 16-21, 2014

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DySectAPI: Scalable Prescriptive Debugging

SESSION: Poster Reception


TIME: 5:15PM - 7:00PM

AUTHOR(S):Nicklas Bo Jensen, Niklas Quarfot Nielsen, Gregory L. Lee, Sven Karlsson, Dong H. Ahn, Matthew Legendre, Martin Schulz

ROOM:New Orleans Theater Lobby


We present the DySectAPI, a tool that allow users to construct probe trees for automatic, event-driven debugging at scale. The traditional, interactive debugging model, whereby users manually step through and inspect their application, does not scale well even for current supercomputers. While lightweight debugging models scale well, they can currently only debug a subset of bug classes. DySectAPI fills the gap between these two approaches with a novel user-guided approach. Using both experimental results and analytical modeling we show how DySectAPI scales and can run with a low overhead on current systems.

Chair/Author Details:

Nicklas Bo Jensen - Technical University of Denmark

Niklas Quarfot Nielsen - Technical University of Denmark

Gregory L. Lee - Lawrence Livermore National Laboratory

Sven Karlsson - Technical University of Denmark

Dong H. Ahn - Lawrence Livermore National Laboratory

Matthew Legendre - Lawrence Livermore National Laboratory

Martin Schulz - Lawrence Livermore National Laboratory

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