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EasyMSG: tools and techniques for an adaptive overlapping in SPMD programming. (English) Zbl 1027.65159
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:
65N35Spectral, collocation and related methods (BVP of PDE)
78A25General electromagnetic theory
78M25Numerical methods in optics
35Q60PDEs in connection with optics and electromagnetic theory
65Y05Parallel computation (numerical methods)
68M10Network design and communication of computer systems
Software:
EasyMSG; PETSc
WorldCat.org
Full Text: DOI Numdam EuDML
References:
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