Enviaments recents

  • Bursty cell stream characterization 

    Solé Pareta, Josep; Domingo Pascual, Jordi; García Vidal, Jorge (1989-01)
    Report de recerca
    Accés obert
    Traffic cell stream generated by a single source (or a single connection traffic cell stream) may be characterized by its mean traffic intensity (or normalized mean cell rate) Ai, but also by its burstiness. "Burstiness ...
  • Traffic burstiness influence on ATM switching behavior 

    Solé Pareta, Josep; Domingo Pascual, Jordi; García Vidal, Jorge (1989-01)
    Report de recerca
    Accés obert
    Traffic studies is an important subject to evaluate the performance of the switching elements in an ATM environment. The main reason is that ATM cell streams have varible bitrate where the maximun peak bitrate can be several ...
  • The AXIOM platform for next-generation cyber physical systems 

    Theodoropoulos, Dimitris; Mazumdar, Somnath; Ayguadé Parra, Eduard; Bettin, Nicola; Bueno Hedo, Javier; Ermini, Sara; Filgueras Izquierdo, Antonio; Jiménez González, Daniel; Álvarez Martínez, Carlos; Martorell Bofill, Xavier; Montefoschi, Francesco; Oro Garcia, David; Pnevmatikatos, Dionisis; Rizzo, Antonio; Gai, Paolo; Garzarella, Stefano; Morelli, Bruno; Pomella, Alberto; Giorgi, Roberto (2017-06-03)
    Article
    Accés restringit per política de l'editorial
    Cyber-Physical Systems (CPSs) are widely used in many applications that require interactions between humans and their physical environment. These systems usually integrate a set of hardware-software components for optimal ...
  • ParaView + Alya + D8tree: Integrating high performance computing and high performance data analytics 

    Artigues, Antoni; Cugnasco, Cesare; Becerra Fontal, Yolanda; Cucchietti, Fernando; Houzeaux, Guillaume; Vázquez, Mariano; Torres Viñals, Jordi; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (Elsevier, 2017)
    Article
    Accés obert
    Large scale time-dependent particle simulations can generate massive amounts of data, making it so that storing the results is often the slowest phase and the primary time bottleneck of the simulation. Furthermore, analysing ...
  • Workflows for science: a challenge when facing the convergence of HPC and big data 

    Badia Sala, Rosa Maria; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (2017)
    Article
    Accés obert
    Workflows have been used traditionally as a mean to describe and implement the computing usually parametric studies and explorations searching for the best solution that scientific researchers want to perform. A workflow ...
  • An integrated vector-scalar design on an in-order ARM core 

    Stanic, Milan; Palomar Pérez, Óscar; Hayes, Timothy; Ratkovic, Ivan; Cristal Kestelman, Adrián; Unsal, Osman Sabri; Valero Cortés, Mateo (2017-07)
    Article
    Accés obert
    In the low-end mobile processor market, power, energy, and area budgets are significantly lower than in the server/desktop/laptop/high-end mobile markets. It has been shown that vector processors are a highly energy-efficient ...
  • Distributing data analytics for efficient multiple traffic anomalies detection 

    Pérez Vela, Alba; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (2017-03-22)
    Article
    Accés restringit per política de l'editorial
    Traffic anomalies can create network congestion, so its prompt and accurate detection would allow network operators to make decisions to guarantee the network performance avoiding services to experience any perturbation. ...
  • Uso del simulador SimpleReuse 

    Álvarez Martínez, Carlos; Valero Cortés, Mateo (2005-11)
    Report de recerca
    Accés obert
    Este report explica el funcionamiento del simulador SimpleReuse (una evolución de SimpleScalar y Wattch) para su uso en simulación de reuso de instrucciones o regiones. Este simulador realiza medidas de tiempo, instrucciones ...
  • Predicting multiple streams per cycle 

    Santana Jaria, Oliverio J.; Ramírez Bellido, Alejandro; Valero Cortés, Mateo (2005)
    Report de recerca
    Accés obert
    The next stream predictor is an accurate branch predictor that provides stream level sequencing. Every stream prediction contains a full stream of instructions, that is, a sequence of instructions from the target of a taken ...
  • Access to streams in multiprocessor systems 

    Valero Cortés, Mateo; Peirón Guardia, Montse; Ayguadé Parra, Eduard (Institute of Electrical and Electronics Engineers (IEEE), 1993)
    Text en actes de congrés
    Accés obert
    When accessing streams in vector multiprocessor machines, degradation in the interconnection network and conflicts in the memory modules are the factors that reduce the efficiency of the system. In this paper, we present ...

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