Enviaments recents

  • Monitoring strategies for scalable dynamic checkpointing 

    Perarnau, Swann; Bautista-Gomez, Leonardo (Institute of Electrical and Electronics Engineers (IEEE), 2017-04-06)
    Comunicació de congrés
    Accés obert
    Resilience is an important challenge for extreme-scale supercomputers. Failures in current supercomputers are assumed to be uniformly distributed in time. However, recent studies show that failures in high-performance ...
  • Aging Assessment and Design Enhancement of Randomized Cache Memories 

    Trilla, David; Hernandez, Carles; Abella, Jaume; Cazorla, Francisco J. (Institute of Electrical and Electronics Engineers (IEEE), 2017-01-17)
    Article
    Accés obert
    Critical real-time systems require the estimation of the worst-case execution time (WCET) for scheduling purposes and resource budgeting. Measurement-based probabilistic timing analysis (MBPTA) has been shown recently as ...
  • Event detection in location-based social networks 

    Capdevila Pujol, Joan; Cerquides, Jesús; Torres Viñals, Jordi (Springer, 2017)
    Capítol de llibre
    Accés restringit per política de l'editorial
    With the advent of social networks and the rise of mobile technologies, users have become ubiquitous sensors capable of monitoring various real-world events in a crowd-sourced manner. Location-based social networks have ...
  • Main memory in HPC: do we need more, or could we live with less? 

    Zivanovic, Darko; Pavlovic, Milan; Radulovic, Milan; Shin, Hyunsung; Son, Jongpil; McKee, Sally A.; Carpenter, Paul M.; Radojkovic, Petar; Ayguadé Parra, Eduard (2017-03)
    Article
    Accés obert
    An important aspect of High-Performance Computing (HPC) system design is the choice of main memory capacity. This choice becomes increasingly important now that 3D-stacked memories are entering the market. Compared with ...
  • Database Integrated Analytics Using R: Initial Experiences with SQL-Server + R 

    Berrall, Josep Ll.; Poggi, Nicolas (Institute of Electrical and Electronics Engineers (IEEE), 2017-02-02)
    Comunicació de congrés
    Accés obert
    Most data scientists use nowadays functional or semi-functional languages like SQL, Scala or R to treat data, obtained directly from databases. Such process requires to fetch data, process it, then store again, and such ...
  • 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 ...
  • A runtime heuristic to selectively replicate tasks for application-specific reliability targets 

    Subasi, Omer; Yalcin, Gulay; Zyulkyarov, Ferad; Unsal, Osman Sabri; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés obert
    In this paper we propose a runtime-based selective task replication technique for task-parallel high performance computing applications. Our selective task replication technique is automatic and does not require ...
  • 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 ...
  • A static scheduling approach to enable safety-critical OpenMP applications 

    Melani, Alessandra; Serrano, Maria A.; Bertogna, Marko; Cerutti, Isabella; Quiñones, Eduardo; Buttazzo, Giorgio (IEEE, 2017-02-20)
    Text en actes de congrés
    Accés obert
    Parallel computation is fundamental to satisfy the performance requirements of advanced safety-critical systems. OpenMP is a good candidate to exploit the performance opportunities of parallel platforms. However, safety-critical ...
  • Measurement-based timing analysis of the AURIX caches 

    Kosmidis, Leonidas; Compagnin, Davide; Morales, David; Mezzetti, Enrico; Quiñones Moreno, Eduardo; Abella Ferrer, Jaume; Vardanega, Tullio; Cazorla Almeida, Francisco Javier (Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016)
    Text en actes de congrés
    Accés obert
    Cache memories are one of the hardware resources with higher potential to reduce worst-case execution time (WCET) costs for software programs with tight real-time constraints. Yet, the complexity of cache analysis has ...

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