Title :
Superlinear Speedup in a 3-D Parallel Conjugate Gradient Solver
Author :
Camargos, A. F P ; Batalha, R. M S ; Martins, C. A P S ; Silva, E.J. ; Soares, G.L.
Author_Institution :
Grad. Program in Electr. Eng., Pontifical Catholic Univ. of Minas Gerais, Belo Horizonte
fDate :
3/1/2009 12:00:00 AM
Abstract :
This paper presents a computational performance analysis of a parallel implementation of a conjugate gradient (CG) solver using domain decomposition and distributed memory computers, applied to a 3-D finite element method problem. The results show a superlinear speedup, which is not usually expected. The analysis shows why and how it can happen.
Keywords :
computational electromagnetics; conjugate gradient methods; distributed memory systems; finite element analysis; 3D finite element method; 3D parallel conjugate gradient solver; distributed memory computers; domain decomposition; superlinear speedup; Conjugate gradient solver; finite element method (FEM); parallel implementation; performance analysis; superlinear speedup;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2009.2012753
