Now showing items 1-12 of 12

    • 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 ...
    • Efficient Java Communication Protocols on High-speed Cluster Interconnects 

      López Taboada, Guillermo; Touriño, Juan; Doallo Biempica, , Ramón (IEEE Computer Society, 2007-02-26)
      [Abstract] This paper presents communication strategies for achieving efficient parallel and distributed Java applications on clusters with high-speed interconnects. Communication performance is critical for the overall ...
    • Evaluation of Java for General Purpose GPU Computing 

      Docampo, Jorge; Ramos Garea, Sabela; López Taboada, Guillermo; Expósito, Roberto R.; Touriño, Juan; Doallo Biempica, Ramón (IEEE Computer Society, 2013-07-01)
      [Abstract] The presence of many-core units as accelerators has been increasing due to their ability to improve the performance of highly parallel workloads. General Purpose GPU(GPGPU) computing has allowed the graphical ...
    • High Performance Java Remote Method Invocation for Parallel Computing on Clusters 

      López Taboada, Guillermo; Teijeiro, Carlos; Touriño, Juan (IEEE Computer Society, 2007-11-12)
      [Abstract] This paper presents a more efficient Java remote method invocation (RMI) implementation for high-speed clusters. The use of Java for parallel programming on clusters is limited by the lack of efficient communication ...
    • Non-blocking Java Communications Support on Clusters 

      López Taboada, Guillermo; Touriño, Juan; Doallo Biempica, Ramón (Springer, 2006)
      [Abstract] This paper presents communication strategies for supporting efficient non-blocking Java communication on clusters. The communication performance is critical for the overall cluster performance. It is possible ...
    • NPB-MPJ: NAS Parallel Benchmarks Implementation for Message-Passing in Java 

      Mallón, Damián A.; López Taboada, Guillermo; Touriño, Juan; Doallo Biempica, Ramón (IEEE Computer Society, 2009-05-08)
      [Abstract] Java is a valuable and emerging alternative for the development of parallel applications, thanks to the availability of several Java message-passing libraries and its full multithreading support. The combination ...
    • Performance analysis of Java message-passing libraries on fast Ethernet, Myrinet and SCI clusters 

      López Taboada, Guillermo; Touriño, Juan; Doallo Biempica, Ramón (IEEE Computer Society, 2004-01-08)
      [Abstract] The use of Java for parallel programming on clusters according to the message-passing paradigm is an attractive choice. In this case, the overall application performance will largely depend on the performance ...
    • Performance Evaluation of Big Data Frameworks for Large-Scale Data Analytics 

      Veiga, Jorge; Expósito, Roberto R.; Pardo, Xoán C.; López Taboada, Guillermo; Touriño, Juan (IEEE Computer Society, 2017-02-06)
      [Abstract] The increasing adoption of Big Data analytics has led to a high demand for efficient technologies in order to manage and process large datasets. Popular MapReduce frameworks such as Hadoop are being replaced by ...
    • Performance Evaluation of MPI, UPC and OpenMP on Multicore Architectures 

      Mallón, Damián A.; López Taboada, Guillermo; Teijeiro, Carlos; Touriño, Juan; Fraguela, Basilio B.; Gómez, Andrés; Doallo Biempica, Ramón; Mouriño, José C. (Springer, 2009)
      [Abstract] The current trend to multicore architectures underscores the need of parallelism. While new languages and alternatives for supporting more efficiently these systems are proposed, MPI faces this new challenge. ...
    • Performance Evaluation of Unified Parallel C Collective Communications 

      López Taboada, Guillermo; Teijeiro, Carlos; Touriño, Juan; Fraguela, Basilio B.; Doallo Biempica, Ramón; Mouriño, José C.; Mallón, Damián A.; Gómez, Andrés (IEEE Computer Society, 2009-07-17)
      [Abstract] Unified Parallel C (UPC) is an extension of ANSI C designed for parallel programming. UPC collective primitives, which are part of the UPC standard, increase programming productivity while reducing the communication ...
    • Servet: A Benchmark Suite for Autotuning on Multicore Clusters 

      González Domínguez, Jorge; López Taboada, Guillermo; Fraguela, Basilio B.; Martín Santamaría, María José; Touriño, Juan (Institute of Electrical and Electronics Engineers, 2010-05-24)
      [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 ...
    • The HPS3 Service: Reduction of Cost and Transfer Time for Storing Data on Clouds 

      Veiga, Jorge; López Taboada, Guillermo; Pardo, Xoán C.; Touriño, Juan (IEEE Computer Society, 2015-03-12)
      [Abstract] In the past several years, organizations have been changing their storage methods as the volume of data they managed has increased. The cloud computing paradigm offers new ways of storing data based on scalability ...