SCHEDULE: NOV 16-21, 2014

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Parallel Programming with Migratable Objects: Charm++ in Practice

SESSION: I/O and Dynamic Optimization

EVENT TYPE: Papers

TIME: 4:30PM - 5:00PM

SESSION CHAIR: John West

AUTHOR(S):Bilge Acun, Abhishek Gupta, Nikhil Jain, Akhil Langer, Harshitha Menon, Eric Mikida, Xiang Ni, Michael Robson, Yanhua Sun, Ehsan Totoni, Lukasz Wesolowski, Laxmikant V. Kale

ROOM:391-92

ABSTRACT:

The advent of petascale computing has introduced new challenges (e.g. heterogeneity, system failure) for programming scalable parallel applications. Increased complexity and dynamism in science and engineering applications of today have further exacerbated the situation. Addressing these challenges requires more emphasis on concepts that were previously of secondary importance, including migratability, adaptivity, and runtime system introspection. In this paper, we leverage our experience with these concepts to demonstrate their applicability and efficacy for real world applications. Using the CHARM++ parallel programming framework, we present details on how these concepts can lead to development of applications that scale irrespective of the rough landscape of supercomputing technology. Empirical evaluation presented in this paper spans many mini- applications and real applications executed on modern supercomputers including Blue Gene/Q, Cray XE6, and Stampede.

Chair/Author Details:

John West (Chair) - Department of Defense HPC Modernization Program

Bilge Acun - University of Illinois at Urbana-Champaign

Abhishek Gupta - University of Illinois at Urbana-Champaign

Nikhil Jain - University of Illinois at Urbana-Champaign

Akhil Langer - University of Illinois at Urbana-Champaign

Harshitha Menon - University of Illinois at Urbana-Champaign

Eric Mikida - University of Illinois at Urbana-Champaign

Xiang Ni - University of Illinois at Urbana-Champaign

Michael Robson - University of Illinois at Urbana-Champaign

Yanhua Sun - University of Illinois at Urbana-Champaign

Ehsan Totoni - University of Illinois at Urbana-Champaign