Exploració per autor "Llort Sánchez, Germán"

Ara es mostren els items 1-11 de 11

    • Detailed and simultaneous power and performance analysis 

      Servat, Harald; Llort Sánchez, Germán; Giménez Lucas, Judit; Labarta Mancho, Jesús José (2016-02)
      Article
      Accés obert
      On the road to Exascale computing, both performance and power areas are meant to be tackled at different levels, from system to processor level. The processor itself is the main responsible for the serial node performance ...

    • Detailed performance analysis using coarse grain sampling 

      Servat, Harald; Llort Sánchez, Germán; Giménez Lucas, Judit; Labarta Mancho, Jesús José (Springer, 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Performance evaluation tools enable analysts to shed light on how applications behave both from a general point of view and at concrete execution points, but cannot provide detailed information beyond the monitored regions ...

    • Experiences on the characterization of parallel applications in embedded systems with Extrae/Paraver 

      Munera, Adrian; Royuela Alcázar, Sara; Llort Sánchez, Germán; Mercadal, Estanislao; Wartel, Franck; Quiñones, Eduardo (Association for Computing Machinery (ACM), 2020-08)
      Comunicació de congrés
      Accés obert
      Cutting-edge functionalities in embedded systems require the use of parallel architectures to meet their performance requirements. This imposes the introduction of a new layer in the software stacks of embedded systems: ...

    • Identifying code phases using piece-wise linear regressions 

      Servat, Harald; Llort Sánchez, Germán; González García, Juan; Giménez Lucas, Judit; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Node-level performance is one of the factors that may limit applications from reaching the supercomputers' peak performance. Studying node-level performance and attributing it to the source code results into valuable insight ...

    • Intelligent instrumentation techniques to improve the traces information-volume ratio 

      Llort Sánchez, Germán (Universitat Politècnica de Catalunya, 2015-11-03)
      Tesi
      Accés obert
      With ever more powerful machines being constantly deployed, it is crucial to manage the computational resources efficiently. This is important both from the point of view of the individual user, who expects fast results; ...

    • On the instrumentation of OpenMP and OmpSs Tasking constructs 

      Servat, Harald; Teruel, Xavier; Llort Sánchez, Germán; Duran González, Alejandro; Giménez, J.; Martorell Bofill, Xavier; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (Springer, 2012)
      Text en actes de congrés
      Accés obert
      Parallelism has become more and more commonplace with the advent of the multicore processors. Although different parallel pro- gramming models have arisen to exploit the computing capabilities of such processors, ...

    • On the usefulness of object tracking techniques in performance analysis 

      Llort Sánchez, Germán; Servat, Harald; González García, Juan; Giménez Lucas, Judit; Labarta Mancho, Jesús José (Association for Computing Machinery (ACM), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Understanding the behavior of a parallel application is crucial if we are to tune it to achieve its maximum performance. Yet the behavior the application exhibits may change over time and depend on the actual execution ...

    • On-line detection of large-scale parallel application's structure 

      Llort Sánchez, Germán; González García, Juan; Servat, Harald; Giménez Lucas, Judit; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      With larger and larger systems being constantly deployed, trace-based performance analysis of parallel applications has become a daunting task. Even if the amount of performance data gathered per single process is ...

    • Studying performance changes with tracking analysis 

      Llort Sánchez, Germán; Servat, Harald; Gonzalez Garcia, Juan; Giménez Lucas, Judit; Labarta Mancho, Jesús José (Springer, 2015)
      Capítol de llibre
      Accés obert
      Numerical simulation and modelling using High Performance Computing has evolved into an established technique in academic and industrial research. At the same time, the High Performance Computing infrastructure is becoming ...

    • Trace spectral analysis toward dynamic levels of detail 

      Llort Sánchez, Germán; Casas, Marc; Servat, Harald; Huck, Kevin A.; Giménez Lucas, Judit; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The emergence of Petascale systems has raised new challenges to performance analysis tools. Understanding every single detail of an execution is important to bridge the gap between the theoretical peak and the actual ...

    • Unveiling internal evolution of parallel application computation phases 

      Servat, Harald; Llort Sánchez, Germán; Giménez Lucas, Judit; Huck, Kevin A.; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      As access to supercomputing resources is becoming more and more commonplace, performance analysis tools are gaining importance in order to decrease the gap between the application performance and the supercomputers' peak ...