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Zbl 1027.65159
Havé, Pascal
EasyMSG: tools and techniques for an adaptive overlapping in SPMD programming. (English)
[J] M2AN, Math. Model. Numer. Anal. 36, No.5, 863-882 (2002). ISSN 0764-583X; ISSN 1290-3841/e

Summary: During the development of a parallel solver for Maxwell equations by integral formulations and fast multipole method, 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 an implementation of this techniques using dynamic and adaptive overlapping based on the EasyMSG high level C++ library over MPI, a case of SPMD programming.

MSC 2000:: *65N35 Collocation methods (BVP of PDE)
78A25 General electromagnetic theory
78M25 Numerical methods in optics
35Q60 PDE of electromagnetic theory and optics
65Y05 Parallel computation (numerical methods)
68M10 Computer networks

Keywords: SPMD parallel processing; message passing environment; communications optimization; C++; Maxwell equations; fast multipole method

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