Listar GI-GAC - Artigos por autor "Touriño, Juan"

Mostrando ítems 21-40 de 63

    • Design of Scalable Java Communication Middleware for Multi-Core Systems 

      Ramos Garea, Sabela; Taboada, Guillermo L.; Expósito, Roberto R.; Touriño, Juan; Doallo, Ramón (Oxford University Press, 2013-02-01)
      [Abstract] This paper presents smdev, a shared memory communication middleware for multi-core systems. smdev provides a simple and powerful messaging application program interface that is able to exploit the underlying ...

    • Design of scalable Java message-passing communications over InfiniBand 

      Expósito, Roberto R.; Taboada, Guillermo L.; Touriño, Juan; Doallo, 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 ...

    • Device level communication libraries for high‐performance computing in Java 

      Taboada, Guillermo L.; Touriño, Juan; Doallo, Ramón; Shafi, Aamir; Baker, Mark; Carpenter, Bryan (John Wiley & Sons Ltd., 2011-12-25)
      [Abstract] Since its release, the Java programming language has attracted considerable attention from the high‐performance computing (HPC) community because of its portability, high programming productivity, and built‐in ...

    • Efficient Parallel Numerical Solver for the Elastohydrodynamic Reynolds–Hertz Problem 

      Arenaz Silva, Manuel; Doallo, Ramón; Touriño, Juan; Regueiro, Carlos V. (Elsevier BV * North-Holland, 2001-12-01)
      [Abstract] This work presents a parallel version of a complex numerical algorithm for solving an elastohydrodynamic piezoviscous lubrication problem studied in tribology. The numerical algorithm combines regula falsi, fixed ...

    • Enhancing in-memory Efficiency for MapReduce-based Data Processing 

      Veiga Fachal, Jorge; Expósito, Roberto R.; Taboada, Guillermo L.; Touriño, Juan (Academic Press, 2018-10)
      [Abstract] As the memory capacity of computational systems increases, the in-memory data management of Big Data processing frameworks becomes more crucial for performance. This paper analyzes and improves the memory ...

    • Evaluation of messaging middleware for high-performance cloud computing 

      Expósito, Roberto R.; Taboada, Guillermo L.; Ramos Garea, Sabela; Touriño, Juan; Doallo, Ramón (Springer U K, 2013-12)
      [Abstract] Cloud computing is posing several challenges, such as security, fault tolerance, access interface singularity, and network constraints, both in terms of latency and bandwidth. In this scenario, the performance ...

    • F-MPJ: scalable Java message-passing communications on parallel systems 

      Taboada, Guillermo L.; Touriño, Juan; Doallo, Ramón (Springer New York LLC, 2012-04)
      [Abstract] This paper presents F-MPJ (Fast MPJ), a scalable and efficient Message-Passing in Java (MPJ) communication middleware for parallel computing. The increasing interest in Java as the programming language of the ...

    • FastMPJ: a scalable and efficient Java message-passing library 

      Expósito, Roberto R.; Ramos Garea, Sabela; Taboada, Guillermo L.; Touriño, Juan; Doallo, Ramón (Springer New York LLC, 2014)
      [Abstract] The performance and scalability of communications are key for high performance computing (HPC) applications in the current multi-core era. Despite the significant benefits (e.g., productivity, portability, ...

    • Flame-MR: An event-driven architecture for MapReduce applications 

      Veiga, Jorge; Expósito, Roberto R.; Taboada, Guillermo L.; Touriño, Juan (Elsevier BV * North-Holland, 2016)
      [Abstract] Nowadays, many organizations analyze their data with the MapReduce paradigm, most of them using the popular Apache Hadoop framework. As the data size managed by MapReduce applications is steadily increasing, the ...

    • General‐purpose computation on GPUs for high performance cloud computing 

      Expósito, Roberto R.; Taboada, Guillermo L.; Ramos Garea, Sabela; Touriño, Juan; Doallo, Ramón (John Wiley & Sons Ltd., 2013-08)
      [Abstract] Cloud computing is offering new approaches for High Performance Computing (HPC) as it provides dynamically scalable resources as a service over the Internet. In addition, General‐Purpose computation on Graphical ...

    • HSRA: Hadoop-based spliced read aligner for RNA sequencing data 

      Expósito, Roberto R.; González-Domínguez, Jorge; Touriño, Juan (Public Library of Science, 2018-07-31)
      [Abstract] Nowadays, the analysis of transcriptome sequencing (RNA-seq) data has become the standard method for quantifying the levels of gene expression. In RNA-seq experiments, the mapping of short reads to a reference ...

    • Java in the High Performance Computing arena: Research, practice and experience 

      Taboada, Guillermo L.; Ramos Garea, Sabela; Expósito, Roberto R.; Touriño, Juan; Doallo, Ramón (Elsevier BV, 2013-05-01)
      [Abstract] The rising interest in Java for High Performance Computing (HPC) is based on the appealing features of this language for programming multi-core cluster architectures, particularly the built-in networking and ...

    • Locality-Aware Automatic Parallelization for GPGPU with OpenHMPP Directives 

      Andión, José M.; Arenaz Silva, Manuel; Bodin, François; Rodríguez, Gabriel; Touriño, Juan (Springer New York LLC, 2016-06)
      [Abstract] The use of GPUs for general purpose computation has increased dramatically in the past years due to the rising demands of computing power and their tremendous computing capacity at low cost. Hence, new programming ...

    • Low‐latency Java communication devices on RDMA‐enabled networks 

      Expósito, Roberto R.; Taboada, Guillermo L.; Ramos Garea, Sabela; Touriño, Juan; Doallo, Ramón (John Wiley & Sons Ltd., 2015)
      [Abstract] Providing high‐performance inter‐node communication is a key capability for running high performance computing applications efficiently on parallel architectures. In fact, current systems deployments are aggregating ...

    • MarDRe: efficient MapReduce-based removal of duplicate DNA reads in the cloud 

      Expósito, Roberto R.; Veiga, Jorge; González-Domínguez, Jorge; Touriño, Juan (Oxford University Press, 2017)
      [Abstract] This article presents MarDRe, a de novo cloud-ready duplicate and near-duplicate removal tool that can process single- and paired-end reads from FASTQ/FASTA datasets. MarDRe takes advantage of the widely adopted ...

    • MSAProbs-MPI: parallel multiple sequence aligner for distributed-memory systems 

      González-Domínguez, Jorge; Liu, Yongchao; Touriño, Juan; Schmidt, Bertil (Oxford University Press, 2016)
      [Abstracts] MSAProbs is a state-of-the-art protein multiple sequence alignment tool based on hidden Markov models. It can achieve high alignment accuracy at the expense of relatively long runtimes for large-scale input ...

    • Multithreaded and Spark parallelization of feature selection filters 

      Eiras-Franco, Carlos; Bolón-Canedo, Verónica; Ramos Garea, Sabela; González-Domínguez, Jorge; Alonso-Betanzos, Amparo; Touriño, Juan (2016)
      [Abstract]: Vast amounts of data are generated every day, constituting a volume that is challenging to analyze. Techniques such as feature selection are advisable when tackling large datasets. Among the tools that provide ...

    • Nonblocking collectives for scalable Java communications 

      Ramos Garea, Sabela; Taboada, Guillermo L.; Expósito, Roberto R.; Touriño, Juan (John Wiley & Sons Ltd., 2015-04-22)
      [Abstract] This paper presents a Java implementation of the recently published MPI 3.0 nonblocking message passing collectives in order to analyze and assess the feasibility of taking advantage of these operations in shared ...

    • Optimization of Real-World MapReduce Applications With Flame-MR: Practical Use Cases 

      Veiga, Jorge; Expósito, Roberto R.; Raffin, Bruno; Touriño, Juan (Institute of Electrical and Electronics Engineers, 2018-11-12)
      [Abstract] Apache Hadoop is a widely used MapReduce framework for storing and processing large amounts of data. However, it presents some performance issues that hinder its utilization in many practical use cases. Although ...

    • Optimizing Coherence Traffic in Manycore Processors Using Closed-Form Caching/Home Agent Mappings 

      Kommrusch, Steve; Horro, Marcos; Pouchet, Louis-Noël; Rodríguez, Gabriel; Touriño, Juan (Institute of Electrical and Electronics Engineers, 2021-02-09)
      [Abstract] Manycore processors feature a high number of general-purpose cores designed to work in a multithreaded fashion. Recent manycore processors are kept coherent using scalable distributed directories. A paramount ...