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Listar por autor "Romero Alcalde, Eloy"

Mostrando ítems 1-10 de 10

A fast sparse block circulant matrix vector product

Romero Alcalde, Eloy; Tomás Domínguez, Andrés Enrique; Soriano Asensi, Antonio; Blanquer Espert, Ignacio (Springer, 2014-08-25)

In the context of computed tomography (CT), iterative image reconstruction techniques are gaining attention because high-quality images are becoming computationally feasible. They involve the solution of large systems of ...
A parallel implementation of Davidson methods for large-scale eigenvalue problems in SLEPc

Romero Alcalde, Eloy; Román Moltó, José Enrique (Association for Computing Machinery (ACM), 2014-02)

In the context of large-scale eigenvalue problems, methods of Davidson type such as Jacobi-Davidson can be competitive with respect to other types of algorithms, especially in some particularly difficult situations such ...
CodeCloud: A platform to enable execution of programming models on the Clouds

Caballer Fernández, Miguel; Alfonso Laguna, Carlos de; Moltó, Germán; Romero Alcalde, Eloy; Blanquer Espert, Ignacio; García García, Andrés (Elsevier, 2014-07)

This paper presents a platform that supports the execution of scientific applications covering different programming models (such as Master/Slave, Parallel/MPI, MapReduce and Workflows) on Cloud infrastructures. The platform ...
Computing subdominant unstable modes of turbulent plasma with a parallel Jacobi-Davidson eigensolver

Romero Alcalde, Eloy; Román Moltó, José Enrique (Wiley-Blackwell, 2011-12-10)

In the numerical solution of large-scale eigenvalue problems, Davidson-type methods are an increasingly popular alternative to Krylov eigensolvers. The main motivation is to avoid the expensive factorizations that are often ...
Implementación Paralela del Método de Minimización de la Traza para el Problema de Valores Propios Generalizado Simétrico

Romero Alcalde, Eloy (Universitat Politècnica de València, 2011-10-21)

En este trabajo, se describen una implementación paralela del método de Minimización de la Traza propuesto por Sameh y Wisniewski. La implementación incluye varias técnicas propuestas en un artículo posterior de Sameh, ...
Multi-dimensional gyrokinetic parameter studies based on eigenvalue computations

Merz, F.; Kowitz, C.; Romero Alcalde, Eloy; Román Moltó, José Enrique; Jenko, F. (Elsevier, 2012-04)

Plasma microinstabilities, which can be described in the framework of the linear gyrokinetic equations, are routinely computed in the context of stability analyses and transport predictions for magnetic confinement fusion ...
Parallel finite element density functional computations exploiting grid refinement and subspace recycling

Young, T. D.; Romero Alcalde, Eloy; Román Moltó, José Enrique (Elsevier, 2013-01)

In this communication computational methods that facilitate finite element analysis of density functional computations are developed. They are: (i) h¿adaptive grid refinement techniques that reduce the total number of ...
Parallel implementation of Davidson-type methods for large-scale eigenvalue problems

Romero Alcalde, Eloy (Universitat Politècnica de València, 2012-04-17)

El problema de valores propios (tambien llamado de autovalores, o eigenvalues) esta presente en diversas tareas cienficas a traves de la resolucion de ecuaciones diferenciales, analisis de modelos y calculos de funciones ...
Self-managed Cost-efficient Virtual Elastic Clusters on Hybrid Cloud Infrastructures

Calatrava Arroyo, Amanda; Romero Alcalde, Eloy; Moltó Martínez, Germán; Caballer Fernández, Miguel; Alonso Ábalos, José Miguel (Elsevier, 2016-08)

In this study, we describe the further development of Elastic Cloud Computing Cluster (EC3), a tool for creating self-managed cost-efficient virtual hybrid elastic clusters on top of Infrastructure as a Service (IaaS) ...
Towards migratable elastic virtual clusters on hybrid clouds

Calatrava Arroyo, Amanda; Moltó, Germán; Romero Alcalde, Eloy; Caballer Fernández, Miguel; Alfonso Laguna, Carlos de (IEEE, 2015-06-27)

This paper describes the research work in the context of the CLUVIEM project towards achieving migrat- able, self-managed virtual elastic clusters on hybrid Cloud infrastructures. These virtual clusters can span across on- ...