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A Jacobi-Davidson type method with a correction equation tailored for integral operators

Vasconcelos, Paulo B.; d'Almeida, Filomena D.; Román Moltó, José Enrique (Springer Verlag (Germany), 2013-09)

We propose two iterative numerical methods for eigenvalue computations of large dimensional problems arising from finite approximations of integral operators, and describe their parallel implementation. A matrix representation ...
Adaptive precision in block-Jacobi preconditioning for iterative sparse linear system solvers

Anzt, Hartwig; Dongarra, Jack; Flegar, Goran; Higham, Nicholas J.; Quintana Ortí, Enrique Salvador (John Wiley & Sons, 2019-03-25)

[EN] We propose an adaptive scheme to reduce communication overhead caused by data movement by selectively storing the diagonal blocks of a block-Jacobi preconditioner in different precision formats (half, single, or ...
Fast Band--Krylov Eigensolver for Macromolecular Functional Motion Simulation on Multicore Architectures and Graphics Processors

Aliaga, Jose I.; Alonso Jordá, Pedro; Badía Contelles, José Manuel; Chacon, Pablo; Davidovic, Davo; Lopez-Blanco, Jose R.; Quintana-Orti, Enrique S (Elsevier, 2016-03-15)

We introduce a new iterative Krylov subspace-based eigensolver for the simulation of macromolecular motions on desktop multithreaded platforms equipped with multicore processors and, possibly, a graphics accelerator ...

Mostrando ítems 1-3 de 3