Enviaments recents

  • Understanding the thermal implications of multicore architectures 

    Chaparro, Pedro; González González, José; Magklis, Grigorios; Cai, Qiong; González Colás, Antonio María (2007-08)
    Article
    Accés obert
    Multicore architectures are becoming the main design paradigm for current and future processors. The main reason is that multicore designs provide an effective way of overcoming instruction-level parallelism (ILP) limitations ...
  • Thread partitioning and value prediction for exploiting speculative thread-level parallelism 

    Marcuello, Pedro; González Colás, Antonio María; Tubella Murgadas, Jordi (2004-02)
    Article
    Accés obert
    Speculative thread-level parallelism has been recently proposed as a source of parallelism to improve the performance in applications where parallel threads are hard to find. However, the efficiency of this execution model ...
  • A performance analysis of a mimetic finite difference scheme for acoustic wave propagation on GPU platforms 

    Otero Calviño, Beatriz; Frances, Jorge; Rodriguez Cruz, Robert; Rojas, Otilio; Solano, Freysimar; Guevara-Jordan, Juan (2017-02-01)
    Article
    Accés restringit per política de l'editorial
    Realistic applications of numerical modeling of acoustic wave dynamics usually demand high-performance computing because of the large size of study domains and demanding accuracy requirements on simulation results. Forward ...
  • Reducing branch delay to zero in pipelined processors 

    González Colás, Antonio María; Llaberia Griñó, José M. (1993-03)
    Article
    Accés obert
    A mechanism to reduce the cost of branches in pipelined processors is described and evaluated. It is based on the use of multiple prefetch, early computation of the target address, delayed branch, and parallel execution ...
  • Randomized cache placement for eliminating conflicts 

    Topham, Nigel; González Colás, Antonio María (1999-02)
    Article
    Accés obert
    Applications with regular patterns of memory access can experience high levels of cache conflict misses. In shared-memory multiprocessors conflict misses can be increased significantly by the data transpositions required ...
  • Refueling: Preventing wire degradation due to electromigration 

    Abella Ferrer, Jaume; Vera Rivera, Francisco Javier; Unsal, Osman Sabri; Ergin, Oguz; González Colás, Antonio María; Tschanz, James W. (2008-12)
    Article
    Accés obert
    Electromigration is a major source of wire and via failure. Refueling undoes EM for bidirectional wires and power/ground grids-some of a chip's most vulnerable wires. Refueling exploits EM's self-healing effect by balancing ...
  • Improving I/O performance through an in-kernel disk simulator 

    González Férez, Pilar; Piernas Canovas, Juan; Cortés, Toni (2016-10-01)
    Article
    Accés restringit per política de l'editorial
    This paper presents two mechanisms that can significantly improve the I/O performance of both hard and solid-state drives for read operations: KDSim and REDCAP. KDSim is an in-kernel disk simulator that provides a framework ...
  • Dynamic virtual network connectivity services to support C-RAN backhauling 

    Asensio García, Adrián; Ruiz Ramírez, Marc; Contreras Murillo, Luis Miguel; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2016-12-01)
    Article
    Accés restringit per política de l'editorial
    Aiming at satisfying in a cost-effective manner the forecast traffic growth that future mobile networks will need to support, traditional distributed Radio Access Networks (RANs) are evolving towards centralized architectures. ...
  • Control speculation for energy-efficient next-generation superscalar processors 

    Aragón, Juan Luis; González González, José; González Colás, Antonio María (2006-03)
    Article
    Accés obert
    Conventional front-end designs attempt to maximize the number of "in-flight" instructions in the pipeline. However, branch mispredictions cause the processor to fetch useless instructions that are eventually squashed, ...
  • Analyzing data locality in numeric applications 

    Sánchez Navarro, F. Jesús; González Colás, Antonio María (2000-07)
    Article
    Accés obert
    In this article, we introduce SPLAT (Static and Profiled Data Locality Analysis Tool). The tool's purpose is to provide a fast study of memory behavior without the necessity of a costly memory simulator. SPLAT consists of ...

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