SCHEDULE: NOV 12-18, 2011

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GEM: A Formal Dynamic Verification Environment for HPC Pedagogy

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):Brandon L. Gibson

ROOM:WSCC North Galleria 2nd/3rd Floors

ABSTRACT:
Traditional testing tools are ineffective and inefficient at detecting deep-seated logical bugs in parallel code, lack graphical tools integrated into popular IDE’s, fail to explain why a bug arises, and fail at teaching the use of these tools. Previously, our group provided an efficient MPI testing tool called ISP, which guarantees to detect many types of deadlocks, assertion violations, resource leaks, irrelevant barriers, and MPI message type mismatches. We then deployed the Graphical Explorer of MPI Programs (GEM) as an Eclipse plug-in to PTP. We now present three new contributions to GEM. First, the GEM Visualizer. This allows users to see which interactions among MPI operations led to the bug. Second is to integrate GEM projects from a popular MPI programming book by Peter Pacheco, allowing an instructor to illustrate the MPI behavior of each example. Last, we are enhancing GEM to display threaded behavior in addition to MPI communications.

Chair/Author Details:

Bernd Mohr (Chair) - Juelich Supercomputing Centre

Brandon L. Gibson - University of Utah

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