Computer Sciences

Enviaments recents

  • An approach to task-based parallel programming for undergraduate students 

    Ayguadé Parra, Eduard; Jiménez González, Daniel (2018-03-07)
    Article
    Accés obert
    This paper presents the description of a compulsory parallel programming course in the bachelor degree in Informatics Engineering at the Barcelona School of Informatics, Universitat Politècnica de Catalunya UPC-BarcelonaTech. ...

  • Impact on Network Performance of Probe Vehicle Data Usage: An Experimental Design for Simulation Assessment 

    Montero, Lídia; Linares, Maria Paz; Casanovas, Josep; Codina, Esteve; Recio, Gonzalo; Lorente, Ester; Salmerón, Juan (Hindawi Publishing Corporation, 2018-06-25)
    Article
    Accés obert
    Probe-based technologies are proliferating as a means of inferring traffic states. Technological companies are interested in traffic data for computing the best routes in a traffic-aware manner and they also provide real-time ...

  • A resilient and distributed near real-time traffic forecasting application for Fog computing environments 

    Pérez, Juan L.; Gutierrez-Torre, Alberto; Berral, Josep Ll.; Carrera, David (Elsevier, 2018-10)
    Article
    Accés obert
    In this paper we propose an architecture for a city-wide traffic modeling and prediction service based on the Fog Computing paradigm. The work assumes an scenario in which a number of distributed antennas receive data ...

  • TaskGenX: A Hardware-Software Proposal for Accelerating Task Parallelism 

    Chronaki, Kallia; Casas, Marc; Moreto, Miquel; Bosch, Jaume; Badia, Rosa M. (Springer, 2018-05-29)
    Comunicació de congrés
    Accés obert
    As chip multi-processors (CMPs) are becoming more and more complex, software solutions such as parallel programming models are attracting a lot of attention. Task-based parallel programming models offer an appealing approach ...

  • vMCA: Memory Capacity Aggregation and Management in Cloud Environments 

    Garrido, Luis A.; Carpenter, Paul (IEEE, 2018-05-31)
    Comunicació de congrés
    Accés obert
    In cloud environments, the VMs within the computing nodes generate varying memory demand profiles. When memory utilization reaches its limits due to this, costly (virtual) disk accesses and/or VM migrations can occur. Since ...

  • Understanding memory access patterns using the BSC performance tools 

    Servat, Harald; Labarta, Jesús; Hoppe, Hans-Christian; Giménez, Judit; Peña, Antonio J. (Elsevier, 2018-10)
    Article
    Accés restringit per política de l'editorial
    The growing gap between processor and memory speeds has lead to complex memory hierarchies as processors evolve to mitigate such divergence by exploiting the locality of reference. In this direction, the BSC performance ...

  • Modelling multicore contention on the AURIXTM TC27x 

    Díaz, Enrique; Mezzetti, Enrico; Kosmidis, Leonidas; Abella, Jaume; Cazorla, Francisco J. (Association for Computing Machinery (ACM), 2018-06-24)
    Comunicació de congrés
    Accés obert
    Multicores are becoming ubiquitous in automotive. Yet, the expected benefits on integration are challenged by multicore contention concerns on timing V&V. Worst-case execution time (WCET) estimates are required as early ...

  • Resilient gossip-inspired all-reduce algorithms for high-performance computing - Potential, limitations, and open questions 

    Casas, Marc; Gansterer, Wilfried N.; Wimmer, Elias (SAGE Publications, 2018-04-09)
    Article
    Accés obert
    We investigate the usefulness of gossip-based reduction algorithms in a high-performance computing (HPC) context. We compare them to state-of-the-art deterministic parallel reduction algorithms in terms of fault tolerance ...

  • Measurement-based cache representativeness on multipath programs 

    Milutinovic, Suzana; Abella, Jaume; Mezzetti, Enrico; Cazorla, Francisco J. (Association for Computing Machinery (ACM), 2018-06)
    Comunicació de congrés
    Accés obert
    Autonomous vehicles in embedded real-time systems increase critical-software size and complexity whose performance needs are covered with high-performance hardware features like caches, which however hampers obtaining WCET ...

  • Safe Parallelism: Compiler Analysis Techniques for Ada and OpenMP 

    Royuela, Sara; Martorell, Xavier; Quiñones, Eduardo; Pinho, Luis Miguel (Springer Verlag, 2018-05-26)
    Comunicació de congrés
    Accés obert
    There is a growing need to support parallel computation in Ada to cope with the performance requirements of the most advanced functionalities of safety-critical systems. In that regard, the use of parallel programming ...

  • Accelerating K-mer Frequency Counting with GPU and Non-Volatile Memory 

    Cadenelli, Nicola; Polo, Jordà; Carrera, David (IEEE, 2018-02-15)
    Comunicació de congrés
    Accés obert
    The emergence of Next Generation Sequencing (NGS) platforms has increased the throughput of genomic sequencing and in turn the amount of data that needs to be processed, requiring highly efficient computation for its ...

  • Cache side-channel attacks and time-predictability in high-performance critical real-time systems 

    Trilla, David; Hernandez, Carles; Abella, Jaume; Cazorla, Francisco J. (Association for Computing Machinery (ACM), 2018-06-24)
    Comunicació de congrés
    Accés obert
    Embedded computers control an increasing number of systems directly interacting with humans, while also manage more and more personal or sensitive information. As a result, both safety and security are becoming ubiquitous ...

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