Finite element method (FEM) has been used for years for radiation problems in the
field of electromagnetism. To tackle problems of this kind, mesh truncation techniques
are required, which may lead to the use of high computational resources.
In fact, electrically large radiation problems can only be tackled using massively
parallel computational resources. Different types of multi-core machines are commonly
employed in diverse fields of science for accelerating a number of applications.
However, properly managing their computational resources becomes a very
challenging task. On the one hand, we present a hybrid message passing interface
+ OpenMP-based acceleration of a mesh truncation technique included in a
FEM code for electromagnetism in a high-performance computing cluster equipped
with 140 compute nodes. Results show that we obtain about 85% of the theoretical
maximum speedup of the machine. On the other hand, a graphics processing unit
has been used to accelerate one of the parts that presents high fine-grain parallelism.This work has been fnancially supported by TEC2016-80386-P, TIN2017-82972-R,
CAM S2013/ICE-3004 projects and “Ayudas para contratos predoctorales de Formación del Profesorado
Universitario FPU”
