Now showing items 1-8 of 8

    • A methodology approach to compare performance of parallel programming models for shared-memory architectures 

      Utrera Iglesias, Gladys Miriam; Gil, Marisa; Martorell Bofill, Xavier (Springer, 2020)
      Part of book or chapter of book
      Open Access
      The majority of current HPC applications are composed of complex and irregular data structures that involve techniques such as linear algebra, graph algorithms, and resource management, for which new platforms with varying ...
    • Analyzing the impact of communication imbalance in high-speed networks 

      Utrera Iglesias, Gladys Miriam; Gil, Marisa; Martorell Bofill, Xavier (2017-12-21)
      Open Access
      In this work we analyze the communication load imbalance generated by irregular-data applications running in a multi-node cluster. Experimental approaches to diminish communication load imbalance are evaluated using a ...
    • Examen Final 

      Utrera Iglesias, Gladys Miriam (Universitat Politècnica de Catalunya, 2013-01-18)
      Restricted access to the UPC academic community
    • Mapping parallel loops on multicore systems 

      Tabik, Siham; Romero, Felipe; Utrera Iglesias, Gladys Miriam; Plata, Oscar (2010)
      Conference report
      Open Access
      The compute nodes in contemporary HPC systems contain one or more multicore processors. As a result, these nodes constitute a shared-memory multiprocessor, often combining CMP and SMT concurrency technologies. This ...
    • Noise inspector tool 

      Utrera Iglesias, Gladys Miriam; Fornés de Juan, Jordi; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      The operating system noise can interfere with normal execution programs. This behavior is becoming especially important when scaling parallel programs and amplified with global synchronizations. This work presents a tool ...
    • Tareador: a tool to unveil parallelization strategies at undergraduate level 

      Ayguadé Parra, Eduard; Badia Sala, Rosa Maria; Jiménez González, Daniel; Herrero Zaragoza, José Ramón; Labarta Mancho, Jesús José; Subotic, Vladimir; Utrera Iglesias, Gladys Miriam (North Carolina State University, 2015)
      Conference report
      Open Access
      This paper presents a methodology and framework designed to assist students in the process of finding appropriate task decomposition strategies for their sequential program, as well as identifying bottlenecks ...
    • Task Packing: Efficient task scheduling in unbalanced parallel programs to maximize CPU utilization 

      Utrera Iglesias, Gladys Miriam; Farreras Esclusa, Montse; Fornés de Juan, Jordi (Elsevier, 2019-12)
      Restricted access - publisher's policy
      Load imbalance in parallel systems can be generated by external factors to the currently running applications like operating system noise or the underlying hardware like a heterogeneous cluster. HPC applications working ...
    • "Virtual malleability" applied to MPI jobs to improve their execution in a multiprogrammed environment" 

      Utrera Iglesias, Gladys Miriam (Universitat Politècnica de Catalunya, 2007-12-10)
      Doctoral thesis
      Open Access
      This work focuses on scheduling of MPI jobs when executing in shared-memory multiprocessors (SMPs). <br/>The objective was to obtain the best performance in response time in multiprogrammed multiprocessors systems using ...