Now showing items 1-4 of 4

    • Benefits of SMT and of Parallel Transpose Algorithm for the Large-Scale GYSELA Application 

      Latu, Guillaume; Bigot, Julien; Bouzat, Nicolas; Gimenez, Judit; Grandgirard, Virginie (Association for Computing Machinery, 2016-06)
      Conference report
      Open Access
      This article describes how we manage to increase performance and to extend features of a large parallel application through the use of simultaneous multithreading (SMT) and by designing a robust parallel transpose algorithm. ...
    • Integrating memory perspective into the BSC performance tools 

      Servat, Harald; Labarta Mancho, Jesús José; Hoppe, Hans-Christian; Gimenez, Judit; Peña, Antonio J. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      The growing gap between processor and memory speeds results in complex memory hierarchies as processors evolve to mitigate such differences by taking advantage of locality of reference. In this direction, the BSC performance ...
    • Performance analysis and optimization of the FFTXlib on the Intel knights landing architecture 

      Wagner, Michael; López, Victor; Morillo, Julian; Cavazzoni, Carlo; Affinito, Fabio; Gimenez, Judit; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      In this paper, we address the decreasing performance of the FFTXlib, the Fast Fourier Transformation (FFT) kernel of Quantum ESPRESSO, when scaling to a full KNL node. An increased performance in the FFTXlib will likewise ...
    • Performance analysis on the Intel Knights Landing architecture 

      Wagner, Michael; Gimenez, Judit (Barcelona Supercomputing Center, 2017-05-04)
      Conference report
      Open Access
      One of the emerging architectures in HPC systems is Intel’s Knights Landing (KNL) many core chip, which will also be part of BSC’s next HPC installation MareNostrum 4. KNL is the code name of the second generation of Intel ...