ListarGrupos de investigación por tema "Performance evaluation"

Mostrando ítems 1-14 de 14

    • BDEv 3.0: energy efficiency and microarchitectural characterization of Big Data processing frameworks 

      Veiga, Jorge; Enes, Jonatan; Expósito, Roberto R.; Touriño, Juan (Elsevier BV * North-Holland, 2018-09)
      [Abstract] As the size of Big Data workloads keeps increasing, the evaluation of distributed frameworks becomes a crucial task in order to identify potential performance bottlenecks that may delay the processing of large ...

    • Design of efficient Java message-passing collectives on multi-core clusters 

      Taboada, Guillermo L.; Ramos Garea, Sabela; Touriño, Juan; Doallo, 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.; 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 ...

    • Enabling Hardware Affinity in JVM-Based Applications: A Case Study for Big Data 

      Expósito, Roberto R.; Veiga, Jorge; Touriño, Juan (Springer, 2020)
      [Abstract]: Java has been the backbone of Big Data processing for more than a decade due to its interesting features such as object orientation, cross-platform portability and good programming productivity. In fact, most ...

    • 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, ...

    • High-performance computing selection of models of DNA substitution for multicore clusters 

      Darriba, Diego; Taboada, Guillermo L.; Doallo, Ramón; Posada, David (Sage Publications Ltd., 2014)
      [Abstract] This paper presents the high-performance computing (HPC) support of jModelTest2, the most popular bioinformatic tool for the statistical selection of models of DNA substitution. As this can demand vast computational ...

    • 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 ...

    • Performance Evaluation of MPI, UPC and OpenMP on Multicore Architectures 

      Mallón, Damián A.; Taboada, Guillermo L.; Teijeiro Barjas, Carlos; Touriño, Juan; Fraguela, Basilio B.; Gómez, Andrés; Doallo, 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 Sparse Matrix Products in UPC 

      González-Domínguez, Jorge; García-López, Óscar; Taboada, Guillermo L.; Martín, María J.; Touriño, Juan (Springer New York LLC, 2013-04)
      [Abstract] Unified Parallel C (UPC) is a Partitioned Global Address Space (PGAS) language whose popularity has increased during the last years owing to its high programmability and reasonable performance through an efficient ...

    • Transmission of Still Images Using Low-Complexity Analog Joint Source-Channel Coding 

      Balsa, José; Domínguez-Bolaño, Tomás; Fresnedo, Óscar; García-Naya, José A.; Castedo, Luis (M D P I AG, 2019-07-03)
      [Abstract] An analog joint source-channel coding (JSCC) system designed for the transmission of still images is proposed and its performance is compared to that of two digital alternatives which differ in the source encoding ...