• Algoritmos paralelos de memoria compartida que determinan el menor tama˜no de un ´arbol binario al refinar un simplex regular 

      Aparicio, Guillermo; Salmerón, José Manuel; González-Casado, Leocadio; Asenjo-Plaza, Rafael; García-Fernández, Inmaculada; [et al.] (2015-10-05)
      En el ambito de la optimizacion global basada en tecnicas de ramificacion y acotacion, cuando el espacio de busqueda es un n-sımplex regular es habitual utilizar como regla de division la biseccion por el lado mayor, ...
    • An Experience of e-assessment in an Introductory Course on Computer Organization 

      Ramos-Cozar, Julian; Gutierrez-Carrasco, Eladio Damian; Trenas-Castro, Maria Antonia; Corbera, Francisco; Romero-Montiel, Sergio (2013-11-13)
      This work describes how the CTPracticalsMoodle module can be used for e-assessment in an introductory course on computer organization, where the practical content consists of the design and simulation of a basic CPU ...
    • Análisis comparativo del uso de STMs en a códigos de reducción irregulares 

      Pedrero, Manuel; Gutiérrez, Eladio; Romero, Sergio; Plata, Óscar (2016-09-20)
      La memoria transaccional (TM) constituye un paradigma de concurrencia optimista en arquitecturas multinúcleo que puede ser de utilidad en la explotación de paralelismo en aplicaciones irregulares, en las que la información ...
    • Analyzing the differences between reads and contigs when performing a taxonomic assignment comparison in metagenomics 

      Rodríguez-Brazzarola, Pablo; Pérez-Wohlfeil, Esteban; Díaz-del-Pino, Sergio; Holthausen, Ricardo; Trelles-Salazar, Oswaldo Rogelio (Springer, Cham, 2018-03)
      Metagenomics is an inherently complex field in which one of the primary goals is to determine the compositional organisms present in an environmental sample. Thereby, diverse tools have been developed that are based on ...
    • Aspectos computacionales en la bisección de un n-simplex regular. 

      Aparicio, Gillermo; Casado, L.G.; Garcia, I.; Hendrix, Eligius Maria Theodorus; Toth, B.G. (2013-11-05)
      En el ambito de la optimizacion global basada en tecnicas de ramificacion y acotacion, cuando el espacio de busqueda es un n-simplex regular es habitual utilizar como regla de division la biseccion por el lado mayor. ...
    • Barreras especulativas con memoria transaccional 

      Pedrero Luque, Manuel; Quislant, Ricardo; Eladio, Gutiérrez; López-Zapata, Emilio; Plata, Óscar (Sociedad de Arquitectura y Tecnología de Computadores (SARTECO), 2019)
      La Memoria Transaccional (TM) es una alternativa al modelo de programación basado en locks que pretende simplificar la programación paralela. TM sustituye locks por transacciones para resolver el problema de la exclusión ...
    • Boosting Backward Search Throughput for FM-Index Using a Compressed Encoding 

      Herruzo Ruiz, José Manuel; Gonzalez-Navarro, Sonia; Ibáñez, Pablo; Viñals, Victor; Alastruey-Benedé, Jesús; [et al.] (2019-04-11)
      The rapid development of DNA sequencing technologies has demanded for com- pressed data structures supporting fast pattern matching queries. FM-index is a widely-used compressed data structure that also supports fast ...
    • C++ for Heterogeneous Programming: oneAPI (DPC++ and oneTBB) 

      Reinders, James; Voss, Michael; Reble, Pablo; Asenjo-Plaza, Rafael (2020-11-19)
      This tutorial provides hands-on experience programming CPUs, GPUs and FPGAs using a unified, standards-based programming model: oneAPI. oneAPI includes a cross-architecture language: Data Parallel C++ (DPC++). DPC++ is an ...
    • Control y mejora de la coordinación entre asignaturas de una titulación universitaria 

      Ortigosa, Eva M.; Martín Garzón, Ester; Ortigosa, Pilar M.; Casanova, Joaquín O.; Romero, Luis F. (2015-06-17)
      Entre las múltiples exigencias que impone el EEES, la mejora de la coordinación entre las asignaturas de una titulación es una de las que más preocupan, y se ha convertido en uno de los temas de debate más vivos en ...
    • CUVLE: Variable-Length Encoding on CUDA 

      Fuentes-Alventosa, Antonio; Gómez-Luna, Juan; González-Linares, José M.; Guil, Nicolás (2014-10-14)
      Data compression is the process of representing information in a compact form, in order to reduce the storage requirements and, hence, communication bandwidth. It has been one of the critical enabling technologies for ...
    • Digit recurence division under HUB format 

      Villalba-Moreno, Julio (2016-07-21)
      Half-Unit-Biased format is based on shifting the representation line of the binary numbers by half Unit in the Last Place. The main feature of this format is that the round to nearest is carried out by a simple truncation, ...
    • DNA Sequences Alignment in Multi-GPUs: Energy Payoff on Speculative Executions 

      Pérez-Serrano, Jesús; Sandes, Edans; Melo, Alba; Ujaldon-Martinez, Manuel (2017-05-30)
      We present a performance per watt analysis of CUDAlign 4.0, a parallel strategy to obtain the optimal alignment of huge DNA se- quences in multi-GPU platforms using the exact Smith-Waterman method. Speed-up factors and ...
    • Efficient Floating-Point Representation for Balanced Codes for FPGA Devices 

      Villalba-Moreno, Julio; Hormigo-Aguilar, Javier; Corbera, Francisco; Gonzalez, Mario; López-Zapata, Emilio (2013-10-30)
      We propose a floating–point representation to deal efficiently with arithmetic operations in codes with a balanced number of additions and multiplications for FPGA devices. The variable shift operation is very slow in ...
    • Energy Efficiency of Software Transactional Memory in a Heterogeneous Architecture 

      Villegas, Emilio; Villegas, Alejandro; Navarro, Angeles; Asenjo-Plaza, Rafael; Ukidave, Yash; [et al.] (2016-09-07)
      Hardware vendors make an important effort creating low-power CPUs that keep battery duration and durability above acceptable levels. In order to achieve this goal and provide good performance-energy for a wide variety of ...
    • Entropy-based High Performance Computation of Boolean SNP-SNP Interactions Using GPUs 

      Riveros, Carlos; Ujaldon-Martinez, Manuel; Pablo, Moscato (2014-05-02)
      It is being increasingly accepted that traditional statistical Single Nucleotide Polymorphism (SNP) analysis of Genome-Wide Association Studies (GWAS) reveals just a small part of the heritability in complex diseases. ...
    • Evaluación del consumo energético de la memoria transaccional en procesadores heterogéneos 

      Villegas, Emilio; Villegas, Alejandro; Navarro, Angeles; Asenjo-Plaza, Rafael; Plata, Oscar (2016)
      Actualmente existe una enorme cantidad de dispositivos y sistemas, como ordenadores portátiles y teléfonos móviles, que dependen de una batería para su funcionamiento. Como consecuencia, el hardware que incorporan debe ser ...
    • Evaluation of CNN architectures for gait recognition based on optical flow maps 

      Castro, F. M.; Marín-Jiménez, M.J.; Guil, N.; López-Tapia, S.; Pérez de la Blanca, N. (2017)
      This work targets people identification in video based on the way they walk (\ie gait) by using deep learning architectures. We explore the use of convolutional neural networks (CNN) for learning high-level descriptors ...
    • Explotando el nuevo módulo OpenCL de Intel TBB 

      Romero, Jose Carlos; Villegas, Alejandro; Navarro, Angeles; Rodriguez, Andres; Asenjo, Rafael (2018-07-20)
      Este artículo tiene como objetivo contribuir al desarrollo de la programación paralela trabajando en una de las herramientas desarrolladas por Intel: Intel Threading Building Blocks (Intel TBB). Hemos implementado una ...
    • Expressing Heterogeneous Parallelism in C++ with Threading Building Blocks 

      Reinders, James; Voss, Michael J.; Reble, Pablo; Asenjo-Plaza, Rafael (2017-12-18)
      Due to energy constraints, high performance computing platforms are becoming increasingly heterogeneous, achieving greater performance per watt through the use of hardware that is tuned to specific computational kernels ...
    • A first step to accelerating fingerprint matching based on deformable minutiae clustering 

      Romero, Luis F.; Tabik, Siham; Sánchez, Andrés Jesús; Medina Pérez, Miguel Angel; Herrera, Francisco (2018-07-12)
      Fingerprint recognition is one of the most used biometric methods for authentication. The identification of a query fingerprint requires matching its minutiae against every minutiae of all the fingerprints of the database. ...