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Browsing by Author "Alonso Jordá, Pedro"

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Browsing by Author "Alonso Jordá, Pedro"

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    Efficient update of determinants of rmany-electron wave function overlaps 
    Alonso-Jordá, Pedro; Davidovic, Davor; Sapunar, Marin; Herrero, Jose R.; Quintana-Ortí, Enrique S. (Elsevier, 2021-01)
    [EN] The calculation of overlaps between many-electron wave functions at different nuclear geometries during nonadiabatic dynamics simulations requires the evaluation of a large number of determinants of matrices that ...
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    El producto matricial distribuido en entornos computacionales de alto rendimiento 
    Huerta Gañán, Rodrigo (Universitat Politècnica de València, 2020-09-08)
    [ES] La multiplicación de matrices es una operación fundamental para la resolución de innumerables problemas matemáticos que tienen a esta operación en su base. El coste de esta operación, incluso el algoritmo utilizado, ...
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    Energy-efficient execution of dense linear algebra algorithms on multi-core processors 
    Alonso-Jordá, Pedro; Dolz Zaragozá, Manuel Francisco; Mayo, Rafael; Quintana-Ortí, Enrique S. (Springer Verlag (Germany), 2013-09)
    This paper addresses the efficient exploitation of task-level parallelism, present in many dense linear alge- bra operations, from the point of view of both computa- tional performance and energy consumption. The strategies ...
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    Enhancing performance and energy consumption of runtime schedulers for dense linear algebra 
    Alonso-Jordá, Pedro; Dolz Zaragozá, Manuel Francisco; Igual, Francisco D.; Mayo, Rafael; Quintana Ortí, Enrique Salvador (Wiley, 2014-10)
    The road towards Exascale Computing requires a holistic effort to address three different challenges simultaneously: high performance, energy efficiency, and programmability. The use of runtime task schedulers to orchestrate ...
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    Exploring Hybrid Parallel Systems for Probabilistic Record Linkage 
    Boratto, Murilo; Alonso-Jordá, Pedro; Pinto, Clicia; Melo, Pedro; Barreto, Marcos; Denaxas, Spiros (Springer-Verlag, 2019-03)
    [EN] Record linkage is a technique widely used to gather data stored in disparate data sources that presumably pertain to the same real world entity. This integration can be done deterministically or probabilistically, ...
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    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 ...
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    Fast block QR update in digital signal processing 
    Alventosa, Fran J.; Alonso-Jordá, Pedro; Vidal Maciá, Antonio Manuel; Piñero, Gema; Quintana-Ortí, Enrique S. (Springer-Verlag, 2019-03)
    [EN] The processing of digital sound signals often requires the computation of the QR factorization of a rectangular system matrix. However, sometimes, only a given (and probably small) part of the system matrix varies ...
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    Fast Taylor polynomial evaluation for the computation of the matrix cosine 
    Sastre, Jorge; Ibáñez González, Jacinto Javier; Alonso-Jordá, Pedro; Peinado Pinilla, Jesús; Defez Candel, Emilio (Elsevier, 2019-07)
    [EN] In this work we introduce a new method to compute the matrix cosine. It is based on recent new matrix polynomial evaluation methods for the Taylor approximation and a mixed forward and backward error analysis. The ...
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    Generación automática de núcleos computacionales para redes neuronales 
    Alaejos López, Guillermo (Universitat Politècnica de València, 2022-04-27)
    [ES] El auge en la aplicación de redes neuronales profundas (RNPs) en una gran variedad de campos científicos ha propiciado su uso no solo en servidores de cómputo sino también en dispositivos de bajo consumo. Los cálculos ...
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    Generalization of the K-SVD algorithm for minimization of ß-divergence 
    García Mollá, Víctor Manuel; San Juan-Sebastian, Pablo; Virtanen, T.; Vidal Maciá, Antonio Manuel; Alonso-Jordá, Pedro (Elsevier, 2019)
    [EN] In this paper, we propose, describe, and test a modification of the K-SVD algorithm. Given a set of training data, the proposed algorithm computes an overcomplete dictionary by minimizing the ß-divergence () between ...
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    High-performance computing: the essential tool and the essential challenge 
    Alonso-Jordá, Pedro; Ranilla, José; Vigo-Aguiar, Jesús (Springer-Verlag, 2017)
    [EN] Prolog to the Journal of Supercomputing, volume 73, issue 1.
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    HReMAS: Hybrid Real-time Musical Alignment System 
    Cabañas-Molero, P.; Cortina-Parajón, Raquel; Combarro, E. F.; Alonso-Jordá, Pedro; Bris-Peñalver, F. J. (Springer-Verlag, 2019-03)
    [EN] This paper presents a real-time audio-to-score alignment system for musical applications. The aim of these systems is to synchronize a live musical performance with its symbolic representation in a music sheet. We ...
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    Identificación de piezas musicales en una base de datos 
    Mañogil López, José Manuel (Universitat Politècnica de València, 2019-10-15)
    [ES] Este proyecto se centra en el análisis y optimización de una aplicación C que realiza la búsqueda de una pieza de música clásica en una base de datos a partir de un fragmento dado de ésta. La idea principal es que ...
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    Implementación de un sitio web para un concurso de programación paralela 
    Martini, Nicolas Fernando (Universitat Politècnica de València, 2020-09-18)
    [CA] El present treball aborda la implementació d’un lloc web per a concursos de programació paral·lela, amb l’afegit de la gamificació o ludificació, una tècnica d’aprenentatge que busca recompensar a l’usuari i augmentar ...
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    Modeling power and energy consumption of dense matrix factorizations on multicore processors 
    Alonso Jordá, Pedro; Dolz Zaragozá, Manuel Francisco; Mayo, Rafael; Quintana Ortí, Enrique Salvador (Wiley, 2014-12)
    [EN] In this paper, we propose a model for the energy consumption of the concurrent execution of three key dense matrix factorizations, with task parallelism leveraged via the Symmetric Multi-Processing Superscalar (SMPSs) ...
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    Modeling power and energy of the task-parallel Cholesky factorization on multicore processors 
    Alonso-Jordá, Pedro; Dolz Zaragozá, Manuel Francisco; Mayo, Rafael; Quintana Ortí, Enrique Salvador (Springer Verlag (Germany), 2014-05)
    [EN] In this paper we introduce a model for the total energy consumption of the Cholesky factorization on a multicore processor. Our model assumes a task- parallel execution of the factorization process, with con- currency ...
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    Modelos Paralelos para la Resolución de Problemas de Ingeniería Agrícola 
    DO CARMO BORATTO, MURILO (Universitat Politècnica de València, 2015-03-31)
    El presente trabajo se inscribe en el campo de la computación paralela y, más en concreto, en el desarrollo y utilización de modelos computacionales en arquitecturas paralelas heterogéneas para la resolución de ...
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    New matrix series expansions for the matrix cosine approximation 
    Defez Candel, Emilio; Ibáñez González, Jacinto Javier; Alonso Abalos, José Miguel; Peinado Pinilla, Jesús; Alonso-Jordá, Pedro (R. Company, J. C. Cortés, L. Jódar and E. López-Navarro, 2019-07-12)
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    On the evaluation of matrix polynomials using several GPGPUs 
    Alonso Jordá, Pedro; Boratto, Murilo; Peinado Pinilla, Jesús; Ibáñez González, Jacinto Javier; Sastre Martinez, Jorge (Universitat Politècnica de València, 2014-09-15)
    Computing a matrix polynomial is the basic process in the calculation of functions of matrices by the Taylor method. One of the most efficient techniques for computing matrix polynomials is based on the Paterson– Stockmeyer ...
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    Online score-informed source separation in polyphonic mixtures using instrument spectral patterns 
    Muñoz-Montoro, A.; Vera-Candeas, P.; Cortina, Raquel; Combarro, E. F.; Alonso-Jordá, Pedro (John Wiley & Sons, 2019)
    [EN] Soundprism is a real-time algorithm to separate polyphonic music audio into source signals, given the musical score of the audio in advance. This paper presents a framework for a Soundprism implementation. A study ...