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EasyMSG: Tools and techniques for an adaptive overlapping in SPMD programming

Published online by Cambridge University Press:  15 October 2002

Pascal Havé
Pascal Havé*
Affiliation:
Laboratoire Jacques-Louis Lions, Université Pierre et Marie Curie, 4 place Jussieu, 75252 Paris Cedex 05, France. [email protected].
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Abstract

During the development of a parallel solver for Maxwell equations by integral formulations and Fast Multipole Method (FMM), we needed to optimize a critical part including a lot of communications and computations. Generally, many parallel programs need to communicate, but choosing explicitly the way and the instant may decrease the efficiency of the overall program. So, the overlapping of computations and communications may be a way to reduce this drawback. We will see a implementation of this techniques using dynamic and adaptive overlapping based on the EasyMSG high level C++ library over MPI, a case of SPMD programming.

Keywords

SPMD parallel processingmessage passing environmentcommunications optimizationC++Maxwell equationsfast multipole method.
Type
Research Article
Information
ESAIM: Mathematical Modelling and Numerical Analysis , Volume 36 , Issue 5: Special issue on Programming , September 2002 , pp. 863 - 882
Copyright
© EDP Sciences, SMAI, 2002

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