Now showing items 1-20 of 59

    • A cloud-based enhanced differential evolution algorithm for parameter estimation problems in computational systems biology 

      Teijeiro, Diego; Pardo, Xoán C.; Penas, David R.; González Gómez, Patricia; Banga, Julio R.; Doallo Biempica, Ramón (Springer New York LLC, 2017)
      [Abstract] Metaheuristics are gaining increasing recognition in many research areas, computational systems biology among them. Recent advances in metaheuristics can be helpful in locating the vicinity of the global solution ...
    • A GIS-Embedded System to Support Land Consolidation Plans in Galicia. 

      Touriño, Juan; Parapar López, Jorge; Doallo Biempica, Ramón; Boullón, Marcos; Rivera, Francisco F.; Bruguera, Javier D. (Taylor & Francis, 2003-06)
      [Abstract] Land consolidation is a strategic instrument for rural planning and thus economic development in the Spanish region of Galicia. This paper describes an experimental system embedded in a GIS environment to aid ...
    • A middleware architecture for distributed systems management 

      Salceda, Jesús; Díaz, Iván; Touriño, Juan; Doallo Biempica, Ramón (Academic Press, 2004-06)
      [Abstract] This paper presents a middleware solution for global management of any kind of distributed system, such as networks of PCs/workstations, clusters or server farms. Our approach lies in an object-oriented software ...
    • A parallel metaheuristic for large mixed-integer dynamic optimization problems, with applications in computational biology 

      Penas, David R.; Henriques, David; González Gómez, Patricia; Doallo Biempica, Ramón; Saez-Rodriguez, Julio; Banga, Julio R. (Public Library of Science, 2017)
      [Abstract] Background: We consider a general class of global optimization problems dealing with nonlinear dynamic models. Although this class is relevant to many areas of science and engineering, here we are interested ...
    • A population-based iterated greedy algorithm for the delimitation and zoning of rural settlements 

      Porta, Juan; Parapar López, Jorge; Doallo Biempica, Ramón; Barbosa Brandão, Vasco; Santé, Inés; Crecente, Rafael (Pergamon Press, 2013)
      [Abstract] In this paper we present a Population-Based Iterated Greedy (PBIG) algorithm for delimiting and zoning rural settlements. Each cadastral plots is allocated to a category (traditional–historical, common or none) ...
    • A PVM Based Library for Sparse Matrix Factorizations 

      Touriño, Juan; Doallo Biempica, Ramón (Springer, 1998)
      [Abstract] We present 3LM, a C Linked List Management Library for parallel sparse factorizations on a PVM environment which takes into account the fill-in, an important drawback of sparse computations. It is restricted to ...
    • A simulated annealing algorithm for zoning in planning using parallel computing 

      Santé, Inés; Fernández Rivera, Francisco; Crecente, Rafael; Boullón, Marcos; Suárez, Marcos; Porta, Juan; Parapar López, Jorge; Doallo Biempica, Ramón (Pergamon Press, 2016)
      [Abstract] There is an increasing demand for tools that support land use planning processes, particularly the design of zoning maps, which is one of the most complex tasks in the field. In this task, different land use ...
    • An Inspector-Executor Algorithm for Irregular Assignment Parallelization 

      Arenaz Silva, Manuel; Touriño, Juan; Doallo Biempica, Ramón (Springer, 2004)
      [Abstract] A loop with irregular assignment computations contains loop-carried output data dependences that can only be detected at run-time. In this paper, a load-balanced method based on the inspector-executor model is ...
    • Analysis of I/O Performance on an Amazon EC2 Cluster Compute and High I/O Platform 

      Expósito, Roberto R.; López Taboada, Guillermo; Ramos Garea, Sabela; González-Domínguez, Jorge; Touriño, Juan; Doallo Biempica, Ramón (Springer Netherlands, 2013-12)
      [Abstract] Cloud computing is currently being explored by the scientific community to assess its suitability for High Performance Computing (HPC) environments. In this novel paradigm, compute and storage resources, as well ...
    • Automated and accurate cache behavior analysis for codes with irregular access patterns 

      Andrade, Diego; Arenaz Silva, Manuel; Fraguela, Basilio B.; Touriño, Juan; Doallo Biempica, Ramón (John Wiley & Sons Ltd., 2007-04-03)
      [Abstract] The memory hierarchy plays an essential role in the performance of current computers, so good analysis tools that help in predicting and understanding its behavior are required. Analytical modeling is the ideal ...
    • Big Data Geospatial Processing for Massive Aerial LiDAR Datasets 

      Deibe, David; Amor, Margarita; Doallo Biempica, Ramón (M D P I AG, 2020-02-21)
      [Abstract] For years, Light Detection and Ranging (LiDAR) technology has been considered as a challenge when it comes to developing efficient software to handle the extremely large volumes of data this surveying method is ...
    • BPLG–BMCS: GPU-sorting algorithm using a tuning skeleton library 

      Pérez Diéguez, Adrián; Amor, Margarita; Doallo Biempica, Ramón (Springer New York LLC, 2017)
      [Abstract] In this work, we present an efficient and portable sorting operator for GPUs. Specifically, we propose an algorithmic variant of the bitonic merge sort which reduces the number of processing stages and internal ...
    • Characterization of message-passing overhead on the AP3000 multicomputer 

      Touriño, Juan; Doallo Biempica, Ramón (IEEE, 2001-09)
      [Abstract] The performance of the communication primitives of parallel computers is critical for the overall system performance. The characterization of the communication overhead is very important to estimate the global ...
    • Compiler support for parallel code generation through kernel recognition 

      Arenaz Silva, Manuel; Touriño, Juan; Doallo Biempica, Ramón (IEEE Computer Society, 2004-06-07)
      [Abstract] Summary form only given. The automatic parallelization of loops that contain complex computations is still a challenge for current parallelizing compilers. The main limitations are related to the analysis of ...
    • Compiler-Assisted Checkpointing of Parallel Codes: The Cetus and LLVM Experience 

      Rodríguez Álvarez, Gabriel; Martín Santamaría, María José; González, Patricia; Touriño, Juan; Doallo Biempica, Ramón (Springer New York LLC, 2013)
      [Abstract] With the evolution of high-performance computing, parallel applications have developed an increasing necessity for fault tolerance, most commonly provided by checkpoint and restart techniques. Checkpointing tools ...
    • CPPC: a compiler‐assisted tool for portable checkpointing of message‐passing applications 

      Rodríguez Álvarez, Gabriel; Martín Santamaría, María José; González, Patricia; Touriño, Juan; Doallo Biempica, Ramón (John Wiley & Sons Ltd., 2010-11-19)
      [Abstract] With the evolution of high‐performance computing toward heterogeneous, massively parallel systems, parallel applications have developed new checkpoint and restart necessities. Whether due to a failure in the ...
    • Design and Implementation of an extended collectives library for unified Parallel C 

      Teijeiro, Carlos; López Taboada, Guillermo; Touriño, Juan; Doallo Biempica, Ramón; Mouriño, José C.; Mallón, Damián A.; Wibecan, Brian (Springer New York LLC, 2013)
      [Abstract] Unified Parallel C (UPC) is a parallel extension of ANSI C based on the Partitioned Global Address Space (PGAS) programming model, which provides a shared memory view that simplifies code development while it ...
    • Design and Implementation of MapReduce using the PGAS Programming Model with UPC 

      Teijeiro, Carlos; López Taboada, Guillermo; Touriño, Juan; Doallo Biempica, Ramón (IEEE Computer Society, 2012-01-03)
      [Abstract] MapReduce is a powerful tool for processing large data sets used by many applications running in distributed environments. However, despite the increasing number of computationally intensive problems that require ...
    • Design of efficient Java message-passing collectives on multi-core clusters 

      López Taboada, Guillermo; Ramos Garea, Sabela; Touriño, Juan; Doallo Biempica, Ramón (Springer New York LLC, 2011-02)
      [Abstract] This paper presents a scalable and efficient Message-Passing in Java (MPJ) collective communication library for parallel computing on multi-core architectures. The continuous increase in the number of cores per ...
    • Design of scalable Java message-passing communications over InfiniBand 

      Expósito, Roberto R.; López Taboada, Guillermo; Touriño, Juan; Doallo Biempica, Ramón (Springer New York LLC, 2012-07)
      [Abstract] This paper presents ibvdev a scalable and efficient low-level Java message-passing communication device over InfiniBand. The continuous increase in the number of cores per processor underscores the need for ...