Now showing items 21-40 of 781

    • A lightweight tool for detecting inter-thread communication 

      Unat, Didem (Barcelona Supercomputing Center, 2020)
      Conference report
      Open Access
      In a multicore environment, inter-thread communication can provide valuable insights about application performance. Literature detecting inter-thread communication either employs hardware simulators or binary instrumentation. ...
    • A Linux kernel scheduler extension for multi-core systems 

      Roca, Aleix; Beltran Querol, Vicenç; Marquet, Kevin (Barcelona Supercomputing Center, 2018-04-24)
      Conference report
      Open Access
      Current runtime systems take care of getting the mostofeachsystemcorebydistributingworkamongthemultiple CPUs of a machine but they are not aware of when one of their threads (workers) perform blocking calls (e.g. I/O ...
    • A Linux kernel scheduler extension for multi-core systems 

      Roca Nonell, Aleix; Rodríguez, Samuel; Segura, Albert; Marquet, Kevin; Beltran, Vicenç (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      The Linux kernel is mostly designed for multi-programed environments, but high-performance applications have other requirements. Such applications are run standalone, and usually rely on runtime systems to distribute the ...
    • A machine learning approach to stock screening with fundamental analysis 

      Alvarez Vecino, Pol (Universitat Politècnica de Catalunya, 2019-04-15)
      Master thesis
      Open Access
      We present HPC.FASSR, a High-Performance Computation Fundamental Analysis Stock Screener and Ranker to compare many ML models and the criteria of famous Benjamin Graham for stock investing using fundamental data. FASSR is ...
    • A machine learning based wall model for LES of turbulent flows 

      Radhakrishnan, Sarath; Lehmkuhl Barba, Oriol (Barcelona Supercomputing Center, 2021-05)
      Conference report
      Open Access
      The trubulent flow of fluids is still an enigma for mathematicians and engineers alike. The partial differential equation that reperesents the flow of fluids does not have an analytical solution for turbulent regimes. ...
    • A machine learning workflow for hurricane prediction 

      Kahira, Albert; Bautista Gomez, Leonardo; Badia Sala, Rosa Maria (Barcelona Supercomputing Center, 2018-04-24)
      Conference report
      Open Access
    • A memory model for RISC-V 

      Arvind (Barcelona Supercomputing Center, 2017-09-10)
      Conference report
      Open Access
      Historically memory models for multiprocessors have not been designed deliberately but have just emerged. Practically every microarchitectural optimization, which is transparent in a single threaded setting, becomes ...
    • A multilayer network approach to elucidate severity in Congenital Myasthenic Syndromes 

      Núñez-Carpintero, Iker; Cirillo, Davide; Valencia, Alfonso (Barcelona Supercomputing Center, 2019-05-07)
      Conference report
      Open Access
    • A new reliability-based data-driven approach to simulation-based models 

      Ayensa Jiménez, Jacobo; Doweidar, Mohamed Hamdy; Doblaré Castellano, Manuel (Barcelona Supercomputing Center, 2017-05-04)
      Conference report
      Open Access
      Data Science has burst into simulation-based en-gineering sciences with an impressive impulse. However, data are never uncertainty-free and a suitable approach is needed to face data measurement errors and their intrinsic ...
    • A New role of ontologies and advanced scientific visualization in big data analytics 

      Chuprina, Svetlana (Barcelona Supercomputing Center, 2016-09-10)
      Conference report
      Open Access
      Accessing and contextual semantic searching structured, semi-structured and unstructured information resources and their ontology based analysis in a uniform way across text-free Big Data query implementation is a main ...
    • A novel approach for hybrid performance modelling and prediction of large-scale computing systems 

      Pllana, Sabri; Benkner, Siegfried; Xhafa Xhafa, Fatos; Barolli, Leonard (2009)
      Article
      Restricted access - publisher's policy
      We present a novel approach for hybrid performance modeling and prediction of large-scale parallel and distributed computing systems, which combines mathematical modeling and discrete-event simulation. We use mathematical ...
    • A Novel approach to reconstruct the plinian and co-ignimbrite phases of large eruptions - Campanian Ignimbrite 

      Marti, Alejandro; Folch, Arnau; Costa, Antonio; Engwell, Samantha (Barcelona Supercomputing Center, 2015-05-05)
      Conference report
      Open Access
      Reconstructing the volume and tephra dispersal from volcanic super-eruptions is necessary to assess the widespread impact of these massive events on climate, ecosystems and humans. Recent studies have demonstrated that ...
    • A novel MMR pathway in prokaryotes 

      Rojas, Ana (Barcelona Supercomputing Center, 2019)
      Other
      Open Access
    • A novel register renaming technique for out-of-order processors 

      Tabani, Hamid; Arnau Montañés, José María; Tubella Murgadas, Jordi; González Colás, Antonio María (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      Modern superscalar processors support a large number of in-flight instructions, which requires sizeable register files. Conventional register renaming techniques allocate a new storage location, i.e. physical register, for ...
    • A one-dimensional finite element model for human circulatory systems 

      Oks, David; Vázquez, Mariano (Barcelona Supercomputing Center, 2019-05-07)
      Conference report
      Open Access
    • A parallel coupled algorithm for the solution of deformable two-body contact problem 

      Rivero Almeida, José Miguel; Cajas García, Juan Carlos; Houzeaux, Guillaume; Vázquez, Mariano (Barcelona Supercomputing Center, 2015-05-05)
      Conference report
      Open Access
      This work presents a parallel iterative method for numerical solving frictionless contact problem for two elastic bodies. Each iterative step consists of a Dirichlet problem for the one body and a Neumann problem for ...
    • A parallel dynamic asynchronous framework for uncertainty quantification by hierarchical Monte Carlo algorithms 

      Tosi, Riccardo; Amela Milian, Ramon; Badia Sala, Rosa Maria; Rossi, Riccardo (Springer Nature, 2021-09-13)
      Article
      Open Access
      The necessity of dealing with uncertainties is growing in many different fields of science and engineering. Due to the constant development of computational capabilities, current solvers must satisfy both statistical ...
    • A performance analysis of a mimetic finite difference scheme for acoustic wave propagation on GPU platforms 

      Otero Calviño, Beatriz; Frances, Jorge; Rodriguez Cruz, Robert; Rojas, Otilio; Solano, Freysimar; Guevara-Jordan, Juan (2017-02-01)
      Article
      Open Access
      Realistic applications of numerical modeling of acoustic wave dynamics usually demand high-performance computing because of the large size of study domains and demanding accuracy requirements on simulation results. Forward ...
    • A performance perspective on energy efficient HPC links 

      Saravanan, Karthikeyan P.; Carpenter, Paul; Ramírez Bellido, Alejandro (Association for Computing Machinery (ACM), 2014)
      Conference lecture
      Open Access
      Energy costs are an increasing part of the total cost of ownership of HPC systems. As HPC systems become increasingly energy proportional in an effort to reduce energy costs, interconnect links stand out for their inefficiency. ...
    • A Review of Lightweight Thread Approaches for High Performance Computing 

      Castelló, Adrián; Peña, Antonio J.; Seo, Sangmin; Mayo, Rafael; Balaji, Pavan; Quintana Ortí, Enrique Salvador (IEEE, 2016-12-08)
      Conference report
      Open Access
      High-level, directive-based solutions are becoming the programming models (PMs) of the multi/many-core architectures. Several solutions relying on operating system (OS) threads perfectly work with a moderate number of ...