Enviaments recents

  • Computing Safe Contention Bounds for Multicore Resources with Round-Robin and FIFO Arbitration 

    Fernandez, Gabriel; Jalle, Javier; Abella, Jaume; Quiñones, Eduardo; Vardanega, Tullio; Cazorla, Francisco J. (Institute of Electrical and Electronics Engineers (IEEE), 2016-10-11)
    Article
    Accés obert
    Numerous researchers have studied the contention that arises among tasks running in parallel on a multicore processor. Most of those studies seek to derive a tight and sound upper-bound for the worst-case delay with which ...
  • Hybrid Message Pessimistic Logging. Improving current pessimistic message logging protocols 

    Meyer, Hugo; Muresano, Ronal; Castro-León, Marcela; Rexachs, Dolores; Luque, Emilio (Elsevier, 2017-06-01)
    Article
    Accés restringit per política de l'editorial
    With the growing scale of HPC applications, there has been an increase in the number of interruptions as a consequence of hardware failures. The remarkable decrease of Mean Time Between Failures (MTBF) in current systems ...
  • Fitting processor architectures for measurement-based probabilistic timing analysis 

    Kosmidis, Leonidas; Quiñones Moreno, Eduardo; Abella Ferrer, Jaume; Vardanega, Tullio; Hernández, Carles; Gianarro, Andrea; Broster, Ian; Cazorla Almeida, Francisco Javier (2016-11-01)
    Article
    Accés restringit per política de l'editorial
    The pressing market demand for competitive performance/cost ratios compels Critical Real-Time Embedded Systems industry to employ feature-rich hardware. The ensuing rise in hardware complexity however makes worst-case ...
  • Modeling multi-board communication in the AXIOM cyber-physical system 

    Giorgi, Roberto; Mazumdar, Somnath; Viola, Stefano; Gai, Paolo; Garzarella, Stefano; Morelli, Bruno; Pnevmatikatos, Dionisis; Theodoropoulos, Dimitris; Alvarez, Carlos; Ayguadé Parra, Eduard; Bueno, Javier; Filgueras Izquierdo, Antonio; Jiménez-González, Daniel; Martorell Bofill, Xavier (2016-12-01)
    Article
    Accés restringit per política de l'editorial
    The main goal of the AXIOM project is to design a small board that could be used as a LEGOTM-style module to build systems with more performance while keeping the programming task simple by using a familiar shared-memory ...
  • Scalability of Broadcast Performance in Wireless Network-on-Chip 

    Abadal, Sergi; Mestres, Albert; Nemirovsky, Mario; Lee, Heekwan; Gonzalez, Antonio; Alarcón, Eduard; Cabellos-Aparicio, Albert (IEEE, 2016-12-01)
    Article
    Accés obert
    Networks-on-Chip (NoCs) are currently the paradigm of choice to interconnect the cores of a chip multiprocessor. However, conventional NoCs may not suffice to fulfill the on-chip communication requirements of processors ...
  • A visual embedding for the unsupervised extraction of abstract semantics 

    García Gasulla, Dario; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José; Béjar Alonso, Javier; Cortés García, Claudio Ulises; Suzumura, Toyotaro; Chen, R (2017-05-01)
    Article
    Accés restringit per política de l'editorial
    Vector-space word representations obtained from neural network models have been shown to enable semantic operations based on vector arithmetic. In this paper, we explore the existence of similar information on vector ...
  • CUDAlign 4.0: incremental speculative traceback for exact chromosome-wide alignment in GPU clusters 

    De Sandes, Edans; Miranda, Guillermo; Martorell Bofill, Xavier; Ayguadé Parra, Eduard; Teodoro, George; de Melo, Alba (2016-10-01)
    Article
    Accés obert
    This paper proposes and evaluates CUDAlign 4.0, a parallel strategy to obtain the optimal alignment of huge DNA sequences in multi-GPU platforms, using the exact Smith-Waterman (SW) algorithm. In the first phase of CUDAlign ...
  • MASA: a multi-platform architecture for sequence aligners with block pruning 

    De Sandes, Edans; Miranda, Guillermo; Martorell, Xavier; Ayguadé Parra, Eduard; Teodoro, George; de Melo, Alba (2016-03-01)
    Article
    Accés obert
    Biological sequence alignment is a very popular application in Bioinformatics used routinely worldwide. Many implementations of biological sequence alignment algorithms have been proposed for multicores, GPUs, FPGAs and ...
  • DReAM: An approach to estimate per-Task DRAM energy in multicore systems 

    Liu, Qixiao; Moreto Planas, Miquel; Abella, Jaume; Cazorla Almeida, Francisco Javier; Valero Cortés, Mateo (2016-12)
    Article
    Accés obert
    Accurate per-task energy estimation in multicore systems would allow performing per-task energy-aware task scheduling and energy-aware billing in data centers, among other applications. Per-task energy estimation is ...
  • Toward sustainable data centers: a comprehensive energy management strategy 

    Guitart Fernández, Jordi (2016-06-28)
    Article
    Accés restringit per política de l'editorial
    Data centers are major contributors to the emission of carbon dioxide to the atmosphere, and this contribution is expected to increase in the following years. This has encouraged the development of techniques to reduce the ...

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