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An Integrated Performance Visualizer for MPI/OpenMP Programs
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An Integrated Performance Visualizer for MPI/OpenMP Programs
Jay Hoeflinger5  , Bob Kuhn5 , Wolfgang Nagel6 , Paul Petersen5 , Hrabri Rajic15 , Sanjiv Shah5 , Jeff Vetter7 , Michael Voss5 and Renee Woo5
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KAI Software Intel Americas, Inc., Champaign, Illinois, 61820, USA |
| (6) |
Center for High Performance Computing Dresden University of Technology, Germany |
| (7) |
Center for Applied Scientific Computing Lawrence Livermore National Laboratory Livermore, California, 94551, USA |
Abstract
As cluster computing has grown, so has its use for large scientific flavor of how to find performance problems using it.calculations.
Recently, many researchers have experimented with using MPI between nodes of a clustered machine and OpenMP within a node,
to manage the use of parallel processing. Unfortunately, very few tools are available for doing an integrated analysis of
an MPI/OpenMP program. KAI Software, Pallas GmbH and the US Department of Energy have partnered together to build such a tool,
VGV. VGV is designed for doing scalable performance analysis - that is, to make the performance analysis process qualitatively
the same for small cluster machines as it is for the largest ASCI systems. This paper describes VGV and gives a
This work was performed under the auspices of the U.S. Dept. of Energy by University of California LLNL under contract W-7405-Eng-48.
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