Enviaments recents

  • Modeling cloud resources using machine learning 

    Berral, Josep Ll.; Gavaldà Mestre, Ricard; Torres Viñals, Jordi (2013)
    Report de recerca
    Accés obert
    Cloud computing is a new Internet infrastructure paradigm where management optimization has become a challenge to be solved, as all current management systems are human-driven or ad-hoc automatic systems that must be tuned ...
  • Empowering automatic data-center management with machine learning 

    Berral García, Josep Lluís; Gavaldà Mestre, Ricard; Torres Viñals, Jordi (2013)
    Report de recerca
    Accés obert
    The Cloud as computing paradigm has become nowadays crucial for most Internet business models. Managing a cloud and optimizing its performance on a moment-by-moment basis is not easy given as the amount and diversity of ...
  • Adaptive scheduling on power-aware managed data-centers using machine learning 

    Berral García, Josep Lluís; Gavaldà Mestre, Ricard; Torres Viñals, Jordi (2011)
    Report de recerca
    Accés obert
    Energy-related costs have become one of the major economic factors in IT data-centers, and companies and the research community are currently working on new efficient power-aware resource management strategies, also known ...
  • "Living in Barcelona" Li-BCN workload 2010 

    Berral García, Josep Lluís; Gavaldà Mestre, Ricard; Torres Viñals, Jordi (2011)
    Report de recerca
    Accés obert
    Nowadays lots of Internet users are clients of web hosting companies, willing to offer their web services, store their content, or just publish their web sites on the network. This has made the hosting companies to use big ...
  • Obtaining synchronization-free code with maximum parallelism 

    Gavaldà Mestre, Ricard; Ayguadé Parra, Eduard; Torres Viñals, Jordi (1996-03)
    Report de recerca
    Accés obert
    This paper addresses the problem of extracting the maximum synchronization-free parallelism that may be present in loops. In order to reduce communication and synchronization overheads, some parallelizing compilers ...
  • The Complexity of pure Nash equilibria in weighted Max-Congestion Games 

    Álvarez Faura, M. del Carme; Francès Medina, Guillem (Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics, 2008-03-04)
    Report de recerca
    Accés obert
    We study Network Max-Congestion Games (NMC games, for short), a class of network games where each player tries to minimize the most congested edge along the path he uses as strategy. We focus our study on the complexity ...
  • Una herramienta automática de feedback para ensamblador 

    Álvarez Martínez, Carlos; Jiménez González, Daniel; López Álvarez, David; Alonso López, Javier; Tous Liesa, Rubén; Parcerisa Bundó, Joan Manuel; Barlet Ros, Pere; Fernández Barta, Montserrat; Tubella Murgadas, Jordi; Pérez, Christian (2008-10)
    Report de recerca
    Accés obert
    Un estudiante de primer curso de Ingeniería en Informática debe adquirir la capacidad de analizar y depurar códigos, tanto a alto nivel como en ensamblador. Este proceso requiere una participación activa por parte de los ...
  • Operación stencil en CUDA 

    Garcés, Bernardo; Herrero Zaragoza, José Ramón; Otero Calviño, Beatriz (2011-11-29)
    Report de recerca
    Accés obert
    Los problemas derivados de la disipación de energía en la computación secuencial, están haciendo que cada vez se popularice más el uso de máquinas y sistemas con mayor cantidad de núcleos de proceso, pasando desde pequeños ...
  • Vectorized register tiling 

    Berna Juan, Alejandro; Jiménez Castells, Marta; Llaberia Griñó, José M. (2012-01)
    Report de recerca
    Accés obert
    In the last years, there has been much effort in commercial compilers (icc, gcc) to exploit efficiently the SIMD capabilities and the memory hierarchy that the current processors offer. However, the small numbers of compilers ...
  • Source code transformations for efficient SIMD code generation 

    Berna Juan, Alejandro; Jiménez Castells, Marta; Llaberia Griñó, José M. (2012-01)
    Report de recerca
    Accés obert
    Despite the effort inverted the last years in commercial compilers to generate efficient SIMD instructions based code sequences from conventional sequential programs, the small numbers of compilers that can automatically ...

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