Recent Submissions

  • Enhancing iteration performance on distributed task-based workflows 

    Barceló Cuerda, Alex; Queralt Calafat, Anna; Cortés, Toni (Elsevier, 2023-12)
    Article
    Restricted access - publisher's policy
    Task-based programming models have proven to be a robust and versatile way to approach development of applications for distributed environments. They provide natural programming patterns with high performance. However, ...
  • Dynamic robotic tracking of underwater targets using reinforcement learning 

    Masmitjà Rusiñol, Ivan; Martín Muñoz, Mario; O’Reilly, Tom; Kieft, Brian; Palomeras Rovira, Narcís; Navarro Bernabé, Joan; Katija, Kakani (American Association for the Advancement of Science (AAAS), 2023-07-26)
    Article
    Open Access
    To realize the potential of autonomous underwater robots that scale up our observational capacity in the ocean, new techniques are needed. Fleets of autonomous robots could be used to study complex marine systems and animals ...
  • Thermodynamics-informed neural network for recovering supercritical fluid thermophysical information from turbulent velocity data 

    Masclans Serrat, Núria; Vázquez-Novoa, Fernando; Bernades, Marc; Badia Sala, Rosa Maria; Jofre Cruanyes, Lluís (Elsevier, 2023-11)
    Article
    Open Access
    Recent research has highlighted the potential of supercritical fluids under high-pressure transcritical conditions to achieve microconfined turbulence as a result of the thermophysical properties they exhibit in the vicinity ...
  • Recombination between heterologous human acrocentric chromosomes 

    Guarracino, Andrea; Buonaiuto, Silvia; Gomes de Lima, Leonardo; Potapova, Tamara; Rhie, Arang; Marco, Santiago (Nature Research, 2023)
    Article
    Open Access
    The short arms of the human acrocentric chromosomes 13, 14, 15, 21 and 22 (SAACs) share large homologous regions, including ribosomal DNA repeats and extended segmental duplications1,2. Although the resolution of these ...
  • High performance computing PP-distance algorithms to generate X-ray spectra from 3D models 

    González Griñán, César; Balocco, Simone; Bosch Pons, Jaume; Haro Ruiz, Juan Miguel de; Paolini, Maurizio; Filgueras Izquierdo, Antonio; Álvarez Martínez, Carlos; Pons, Ramon (Multidisciplinary Digital Publishing Institute (MDPI), 2022-09-27)
    Article
    Open Access
    X-ray crystallography is a powerful method that has significantly contributed to our understanding of the biological function of proteins and other molecules. This method relies on the production of crystals that, however, ...
  • Optimizing iterative data-flow scientific applications using directed cyclic graphs 

    Álvarez Robert, David; Beltran Querol, Vicenç (Institute of Electrical and Electronics Engineers (IEEE), 2023-04-24)
    Article
    Open Access
    Data-flow programming models have become a popular choice for writing parallel applications as an alternative to traditional work-sharing parallelism. They are better suited to write applications with irregular parallelism ...
  • Compiler support for an AI-oriented SIMD extension of a space processor 

    Solé Bonet, Marc; Kosmidis, Leonidas (Association for Computing Machinery (ACM), 2022-06)
    Article
    Open Access
    In this on going research paper, we present our work on the compiler support for an AI-oriented SIMD Extension, called SPARROW. The SPARROW hardware design has been developed during a recently defended, awardwinning Master ...
  • Dense matrix computations on NUMA architectures with distance-aware work stealing 

    Al-Omairy, Rabab; Miranda Álamo, Guillermo; Ltaief, Hatem; Badia Sala, Rosa Maria; Martorell Bofill, Xavier; Labarta Mancho, Jesús José; Keyes, David E. (2015-03)
    Article
    Open Access
    We employ the dynamic runtime system OmpSs to decrease the overhead of data motion in the now ubiquitous non-uniform memory access (NUMA) high concurrency environment of multicore processors. The dense numerical linear ...
  • Increased mutation and gene conversion within human segmental duplications 

    Vollger, Mitchell R.; Dishuck, Philip C.; Harvey, William T.; DeWitt, William S.; Guitart, Xavi; Marco Sola, Santiago (Nature Research, 2023)
    Article
    Open Access
    Single-nucleotide variants (SNVs) in segmental duplications (SDs) have not been systematically assessed because of the limitations of mapping short-read sequencing data1,2. Here we constructed 1:1 unambiguous alignments ...
  • Dynamic spawning of MPI processes applied to malleability 

    Martín Alvarez, Iker; Aliaga Estellés, José Ignacio; Castillo, Maribel; Iserte, Sergio; Mayo, Rafael (SAGE Publications, 2023)
    Article
    Open Access
    Malleability allows computing facilities to adapt their workloads through resource management systems to maximize the throughput of the facility and the efficiency of the executed jobs. This technique is based on reconfiguring ...
  • GPU acceleration of Levenshtein distance computation between long strings 

    Castells Rufas, David (Elsevier, 2023)
    Article
    Open Access
    Computing edit distance for very long strings has been hampered by quadratic time complexity with respect to string length. The WFA algorithm reduces the time complexity to a quadratic factor with respect to the edit ...
  • Improving the performance of classical linear algebra iterative methods via hybrid parallelism 

    Martínez Ferrer, Pedro José; Arslan, Tufan; Beltran Querol, Vicenç (Elsevier, 2023-09)
    Article
    Restricted access - publisher's policy
    We propose fork-join and task-based hybrid implementations of four classical linear algebra iterative methods (Jacobi, Gauss–Seidel, conjugate gradient and biconjugate gradient stabilized) on CPUs as well as variations of ...

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