Solving Dense Generalized Eigenproblems on Multi-threaded Architectures (CROSBI ID 183949)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Aliaga, José Ignacio ; Bientinesi, Paolo ; Davidović, Davor ; Di Napoli, Eduardo ; Igual Peña, Francisco D. ; Quintana-Ortí, Enrique S.
engleski
Solving Dense Generalized Eigenproblems on Multi-threaded Architectures
We compare two approaches to compute a fraction of the spectrum of dense symmetric definite generalized eigenproblems: one is based on the reduction to tridiagonal form, and the other on the Krylov-subspace iteration. Two large-scale applications, arising in molecular dynamics and material science, are employed to investigate the contributions of the application, architecture, and parallelism of the method to the performance of the solvers. The experimental results on a state-of-the-art 8-core platform, equipped with a graphics processing unit (GPU), reveal that in realistic applications, iterative Krylov-subspace methods can be a competitive approach also for the solution of dense problems
generalized; eigenproblem; dense symmetric; tridiagonal; Krylov; molecular dynamics; DFT; GPU
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Podaci o izdanju
218 (22)
2012.
11279-11289
objavljeno
0096-3003
10.1016/j.amc.2012.05.020
Povezanost rada
Računarstvo, Matematika