Title :
Supercomputer solutions of extremely large problems in electromagnetics: From ten million to one billion unknowns
Author :
Taboada, J.M. ; Landesa, L. ; AraÙjo, M.G. ; Bértolo, J.M. ; Obelleiro, F. ; Rodríguez, J.L. ; Rivero, J. ; Gajardo-Silva, G.
Author_Institution :
Escuela Politec., Univ. de Extremadura, Cáceres, Spain
Abstract :
In this work, an efficient hybrid MPI/OpenMP parallel implementation of the Multilevel Fast Multipole Algorithm - Fast Fourier Transform (MLFMA-FFT) algorithm has been successfully applied to the solution of a challenging electromagnetic problem involving more than one billion unknowns. The MLFMA-FFT was shown to be optimal from the point of view of modern mixed-memory supercomputers, combining the low computational cost of the MLFMA in shared memory computations with the high scalability properties of the FMM-FFT algorithm for the distributed computations.
Keywords :
application program interfaces; computational electromagnetics; distributed shared memory systems; fast Fourier transforms; message passing; parallel algorithms; parallel machines; MLFMA-FFT algorithm; extremely large electromagnetic problem; fast Fourier transform algorithm; hybrid MPI-OpenMP parallel implementation; mixed-memory supercomputer; multilevel fast multipole algorithm; shared memory computation; Antennas; Electromagnetics; Interpolation; MLFMA; Octrees; Three dimensional displays;
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4577-0250-1
