Lamas Daviña, Alejandro(Universitat Politècnica de València, 2018-11-13)
Una línea de desarrollo seguida en el campo de la supercomputación es el uso de procesadores de propósito específico para acelerar determinados tipos de cálculo. En esta tesis estudiamos el uso de tarjetas gráficas como ...
Lamas Daviña, Alejandro(Universitat Politècnica de València, 2014-12-02)
[EN] Design and development of a distributed execution platform following the current
standards, including its deploy and testing. The platform is oriented to heterogeneous
infrastructure environments, with a work schedule ...
Lamas Daviña, Alejandro; Román Moltó, José Enrique(Springer, 2016-04-02)
In an eigenvalue problem defined by one or two matrices with block-tridiagonal structure, if only a few eigenpairs are required it is interesting to consider iterative methods based on Krylov subspaces, even if matrix ...
Jose E. Roman; Alvarruiz Bermejo, Fernando; Campos, Carmen; Dalcin, Lisandro; Jolivet, Pierre; Lamas Daviña, Alejandro(Association for Computing Machinery, 2023-09)
[EN] This short article describes the main newfeatures added to SLEPc, the Scalable Library for Eigenvalue Problem Computations, in the past two and a half years, corresponding to five release versions. The main novelty ...
Lamas Daviña, Alejandro; Roman, Jose E.(Elsevier, 2018)
[EN] We consider the computation of a few eigenpairs of a generalized eigenvalue problem Ax = lambda Bx with block-tridiagonal matrices, not necessarily symmetric, in the context of Krylov methods. In this kind of computation, ...
Lamas Daviña, Alejandro; Ramos Peinado, Enrique; Román Moltó, José Enrique(Elsevier, 2016-12)
The numerical simulation of molecular clusters formed by a finite number of exchange-coupled
paramagnetic centers is very relevant for many applications, modeling systems between molecules and
extended solids. In the ...
[EN] Recently, the serial approach to solving the square root ensemble Kalman filter (ESRF) equations in the presence of covariance localization was found to depend on the order of observations. As shown previously, correctly ...
Lamas Daviña, Alejandro; Cartoixà, Xavier; Roman, Jose E.(IOS Press, 2018-03-01)
[EN] In computer-based numerical simulations, some methods to determine the electronic and optical properties of semiconductor nanostructures, require computing the energies that correspond to the interior eigenvalues of ...