Now showing items 1-11 of 11

    • 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 ...
    • ExaQUte: D1.2 First release of the softwares 

      Tosi, Riccardo; Amela Milian, Ramon; Núñez Corbacho, Marc; Roig Pina, Carlos Alejandro; Badia Sala, Rosa Maria; Rossi, Riccardo (2019-05-30)
      Research report
      Open Access
      This deliverable presents the software release of the Kratos Multiphysics software [3], ”a framework for building parallel, multi-disciplinary simulation software, aiming at modularity, extensibility, and high performance. ...
    • ExaQUte: D1.3 First public release of the solver 

      Ayoul-Guilmard, Quentin; Badia Sala, Rosa Maria; Ejarque, Jorge; Ganesh, Sundar; Nobile, Fabio; Núñez Corbacho, Marc; Soriano Ortiz, Cecilia; Roig Pina, Carlos Alejandro; Rossi, Riccardo; Tosi, Riccardo (2020-05-29)
      Research report
      Open Access
      This deliverable presents the software release of Kratos Multiphysics, together with the XMC library, Hyperloom and PyCOMPSs API definition [8]. This report is meant to serve as a supplement to the public release of the ...
    • ExaQUte: D1.4 Final public release of the solver 

      Ayoul-Guilmard, Quentin; Ganesh, Sundar; Nobile, Fabio; Badia Sala, Rosa Maria; Ejarque, Jorge; Cirrottola, Luca; Froehly, Algiane; Keith, Brendan; Kodakkal, Anoop; Núñez Corbacho, Marc; Roig Pina, Carlos Alejandro; Rossi, Riccardo; Tosi, Riccardo; Soriano Ortiz, Cecilia (2020-11-30)
      Research report
      Open Access
      This deliverable presents the final software release of Kratos Multiphysics, together with the XMC library, Hyperloom and PyCOMPSs API definitions [13]. This release also contains the latest developements on MPI parallel ...
    • ExaQUte: D2.3. Adjoint-based error estimation routines 

      Keith, Brendan; Apostolatos, Andreas; Kodakkal, Anoop; Rossi, Riccardo; Tosi, Riccardo; Wohlmuth, Barbara (2019-05-30)
      Research report
      Open Access
      This document presents a simple and ecient strategy for adaptive mesh refinement (AMR) and a posteriori error estimation for the transient incompressible Navier{Stokes equations. This strategy is informed by the work of ...
    • ExaQUte: D4.2 Profiling report of the partner’s tools, complete with performance suggestions 

      Amela Milian, Ramon; Badia Sala, Rosa Maria; Böhm, Stanislav; Tosi, Riccardo; Rossi, Riccardo (2019-05-30)
      Research report
      Open Access
      This deliverable focuses on the proling activities developed in the project with the partner's applications. To perform this proling activities, a couple of benchmarks were dened in collaboration with WP5. The rst benchmark ...
    • ExaQUte: D5.2 Release of ExaQUte MLMC Python engine 

      Amela Milian, Ramon; Ayoul-Guilmard, Quentin; Ganesh, Sundar; Tosi, Riccardo; Badia Sala, Rosa Maria; Nobile, Fabio; Rossi, Riccardo (2019-05-30)
      Research report
      Open Access
      In this deliverable, the ExaQUte xmc library is introduced. This report is meant to serve as a supplement to the publicly release of the library. In the following sections, the ExaQUte xmc library is described along with ...
    • ExaQUte: D5.3 Report on theoretical work to allow the use of MLMC with adaptive mesh refinement 

      Ayoul-Guilmard, Quentin; Ganesh, Sundar; Núñez Corbacho, Marc; Tosi, Riccardo; Nobile, Fabio; Rossi, Riccardo (2020-05-30)
      Research report
      Open Access
      This documents describes several studies undertaken to assess the applicability of MultiLevel Monte Carlo (MLMC) methods to problems of interest; namely in turbulent fluid flow over civil engineering structures. Several ...
    • ExaQUte: D5.4 Report on MLMC for time dependent problems 

      Ayoul-Guilmard, Quentin; Ganesh, Sundar; Núñez Corbacho, Marc; Tosi, Riccardo; Nobile, Fabio; Rossi, Riccardo (2020-11-13)
      Research report
      Open Access
      In this report, we study the use of Multi-Level Monte Carlo (MLMC) methods for time dependent problems. It was found that the usability of MLMC methods depends strongly on whether or not the underlying time dependent problem ...
    • On the use of ensemble averaging techniques to accelerate the Uncertainty Quantification of CFD predictions in wind engineering 

      Tosi, Riccardo; Núñez Corbacho, Marc; Pons Prats, Jordi; Principe, Ricardo Javier; Rossi, Riccardo (2022-09)
      Article
      Open Access
      In this work we focus on reducing the wall clock time required to compute statistical estimators of highly chaotic incompressible flows on high performance computing systems. Our approach consists of replacing a single ...
    • Towards stochastic methods in CFD for engineering applications 

      Tosi, Riccardo (Universitat Politècnica de Catalunya, 2021-12-21)
      Doctoral thesis
      Open Access
      Recent developments of high performance computing capabilities allow solving modern science problems employing sophisticated computational techniques. However, it is necessary to ensure the efficiency of state of the art ...