Now showing items 1-5 of 5

    • DJSB: Dynamic Job Scheduling Benchmark 

      López Herrero, Víctor; Jokanovic, Ana; D'Amico, Marco; Garcia Gasulla, Marta; Sirvent Pardell, Raül; Corbalán González, Julita (Springer, 2018-02-28)
      Conference lecture
      Open Access
      High-performance computing (HPC) systems are very big and powerful systems, with the main goal of achieving maximum performance of parallel jobs. Many dynamic factors influence the performance which makes this goal a ...
    • Dynamic resource allocation for efficient parallel CFD simulations 

      Houzeaux, Guillaume; Badia Sala, Rosa Maria; Borrell Pol, Ricard; Dosimont, Damien; Ejarque Artigas, Jorge; Garcia Gasulla, Marta; López Herrero, Víctor (Elsevier, 2022-09-15)
      Article
      Restricted access - publisher's policy
      CFD users of supercomputers usually resort to rule-of-thumb methods to select the number of subdomains (partitions) when relying on MPI-based parallelization. One common approach is to set a minimum number of elements or ...
    • Role-shifting threads: Increasing OpenMP malleability to address load imbalance at MPI and OpenMP 

      Criado Ledesma, Joel; López Herrero, Víctor; Vinyals Ylla Català, Joan; Ramirez Miranda, Guillem; Teruel García, Xavier; Garcia Gasulla, Marta (SAGE Publications, 2023-10)
      Article
      Open Access
      This paper presents the evolution of the free agent threads for OpenMP to the new role-shifting threads model and their integration with the Dynamic Load Balancing (DLB) library. We demonstrate how free agent threads can ...
    • Transparent load balancing of MPI programs using OmpSs-2@Cluster and DLB 

      Aguilar Mena, Jimmy; Ali, Omar Shaaban Ibrahim; López Herrero, Víctor; Garcia Casulla, Marta; Carpenter, Paul Matthew; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (Association for Computing Machinery (ACM), 2022)
      Conference report
      Open Access
      Load imbalance is a long-standing source of inefficiency in high performance computing. The situation has only got worse as applications and systems increase in complexity, e.g., adaptive mesh refinement, DVFS, memory ...
    • Uso de SMPSs en aplicaciones MPI con desbalance de carga 

      López Herrero, Víctor (Universitat Politècnica de Catalunya, 2011-06-17)
      Master thesis (pre-Bologna period)
      Open Access
      Castellano: Muchas de las aplicaciones paralelas MPI sufren un problema común, el desbalance de carga entre sus procesos. Al tener cargas de trabajo de diferente magnitud se desperdician los recursos de la máquina. Este ...