Title :
On the development and optimization of hybrid parallel codes for integral equation formulations
Author :
Alvarez-Melcon, Alejandro ; Quesada, F.D. ; Gimenez, D. ; Perez-Alcaraz, C. ; Ramirez, T. ; Picon, J.
Author_Institution :
Dept. de Tecnol. de la Informacion y las Comun., Polytech. Univ. of Cartagena, Cartagena, Spain
Abstract :
The efficient application of hybrid-heterogeneous parallelism to electromagnetic problems based on the integral equation (IE) technique is studied. Two problems with different computational costs and requiring computational systems of different types are considered. First, MPI+OpenMP+CUDA parallelism is used for the computation of Green´s functions inside rectangular waveguides, with an important reduction of the execution time when the number of MPI processes, OpenMP threads and CUDA kernels is well selected. Second, the use of large cc-NUMA systems for computationally demanding software based on a Volumen Integral Equation (VIE) solved with the Method of Moments is studied. A high reduction of the execution time is obtained by combining two-level OpenMP parallelism with multithread linear algebra libraries.
Keywords :
application program interfaces; codes; computational electromagnetics; electromagnetic waves; graphics processing units; linear algebra; message passing; optimisation; parallel architectures; waveguides; CUDA kernels; Green function; IE technique; MPI processes; MPI+OpenMP+CUDA parallelism; OpenMP threads; VIE; Volumen integral equation; cc-NUMA systems; electromagnetic problems; hybrid parallel code development; hybrid parallel code optimisation; integral equation formulations; method of moments; multithread linear algebra libraries; rectangular waveguides; Graphics processing units; Green´s function methods; Instruction sets; Integral equations; Kernel; Method of moments; Parallel processing; Green´s functions; Hybrid parallelism; Integral Equation technique; Microstrip transmission lines; cc-NUMA;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
