sponsored byACMIEEE The International Conference for High Performance 
Computing, Networking, Storage and Analysis
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SCHEDULE: NOV 15-20, 2015

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A Deadlock Detection Concept for OpenMP Tasks and Fully Hybrid MPI-OpenMP Applications

SESSION: Regular & ACM Student Research Competition Poster Reception

EVENT TYPE: Posters, Receptions, ACM Student Research Competition

EVENT TAG(S): HPC Beginner Friendly, Regular Poster

TIME: 5:15PM - 7:00PM

SESSION CHAIR(S): Michela Becchi, Manish Parashar, Dorian C. Arnold

AUTHOR(S):Tobias Hilbrich, Bronis R. de Supinski, Andreas Knuepfer, Robert Dietrich, Christian Terboven, Felix Muenchhalfen, Wolfgang E. Nagel

ROOM:Level 4 - Lobby


Current high performance computing applications often combine the Message Passing Interface (MPI) with threaded parallel programming paradigms, e.g., OpenMP. MPI allows fully hybrid applications in which multiple threads of a process issue MPI operations concurrently. Little study on deadlock conditions for this combined use exists. We propose a wait-for graph approach to understand and detect deadlock for such fully hybrid applications. It specifically considers OpenMP 3.0 tasking support to incorporate OpenMP’s task-based execution model. Our model creates dependencies with deadlock criteria that can be visualized to support comprehensive deadlock reports. We use a model checking approach to investigate wide ranges of valid execution states of example programs to verify the soundness of our wait-for graph construction.

Chair/Author Details:

Michela Becchi, Manish Parashar, Dorian C. Arnold (Chair) - University of Missouri|Rutgers University|University of New Mexico|

Tobias Hilbrich - Dresden University of Technology

Bronis R. de Supinski - Lawrence Livermore National Laboratory

Andreas Knuepfer - Dresden University of Technology

Robert Dietrich - Dresden University of Technology

Christian Terboven - RWTH Aachen University

Felix Muenchhalfen - RWTH Aachen University

Wolfgang E. Nagel - Dresden University of Technology

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