Ara es mostren els items 1-14 de 14

    • A multiscale method for periodic structures using domain decomposition and ECM-hyperreduction 

      Hernández Ortega, Joaquín Alberto (2020-08-15)
      Article
      Accés obert
      This paper presents a nonlinear multiscale approach for periodic structures in the quasi-static, small strain regime. The approach consists in combining a domain decomposition method in which interface conditions are ...
    • A scalable parallel finite element framework for growing geometries: application to metal additive manufacturing 

      Miranda Neiva, Eric; Badia, Santiago; Martín Huertas, Alberto Francisco; Chiumenti, Michele (John Wiley & sons, 2019-09)
      Article
      Accés obert
      This work introduces an innovative parallel, fully-distributed finite element framework for growing geometries and its application to metal additive manufacturing. It is well-known that virtual part design and qualification ...
    • Applications of domain decomposition techniques for the multiscale modeling of softening materials 

      Lloberas Valls, Oriol; Rixen, Daniel J.; Simone, Angelo; Sluys, Lambertus J. (2009)
      Text en actes de congrés
      Accés obert
      In this contribution we describe a methodology for the study of softening brittle materials at different scales of observation. The goal is to account for a higher resolution at those areas that undergo the non-linear ...
    • Enhanced balancing Neumann-Neumann preconditioning in computational fluid and solid mechanics 

      Badia, Santiago; Martín Huertas, Alberto Francisco; Principe, Ricardo Javier (2012)
      Report de recerca
      Accés obert
      Manuscript submitted for publication in International Journal for Numerical Methods in Engineering. Under review.
    • Implementation and scalability analysis of balancing domain decomposition methods 

      Badia, Santiago; Martín Huertas, Alberto Francisco; Principe, Ricardo Javier (2012)
      Report de recerca
      Accés obert
      Manuscript submitted for publication in SIAM Journal of Scientific Computing. Under Review.
    • Migration of a generic multi-physics framework to HPC environments 

      Dadvand, Pooyan; Rossi, Riccardo; Gil, Marisa; Martorell Bofill, Xavier; Cotela Dalmau, Jordi; Juanpere, E.; Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio (Elsevier, 2013-07)
      Article
      Accés obert
      Creating a highly parallelizable code is a challenge specially for distributed memory machines (DMMs). Moreover, algorithms and data structures suitable for these platforms can be very different from the ones used in serial ...
    • Multilevel balancing domain decomposition at extreme scales 

      Badia, Santiago; Martín Huertas, Alberto Francisco; Principe, Ricardo Javier (2016-01-01)
      Article
      Accés obert
      © 2016 Society for Industrial and Applied Mathematics. In this paper we present a fully distributed, communicator-aware, recursive, and interlevel-overlapped message-passing implementation of the multilevel balancing domain ...
    • Multiscale modeling of prismatic heterogeneous structures based on a localized hyperreduced-order method 

      Giuliodori Picco, Agustina; Hernández Ortega, Joaquín Alberto; Soudah Prieto, Eduardo (2023-03)
      Article
      Accés obert
      This work aims at deriving special types of one-dimensional Finite Elements (1D FE) for efficiently modeling heterogeneous prismatic structures, in the small strains regime, by means of reduced-order modeling (ROM) and ...
    • Nonlinear parallel-in-time Schur complement solvers for ordinary differential equations 

      Badia, Santiago; Olm Serra, Marc (2018-12)
      Article
      Accés obert
      In this work, we propose a parallel-in-time solver for linear and nonlinear ordinary differential equations. The approach is based on an efficient multilevel solver of the Schur complement related to a multilevel time ...
    • On the scalability of inexact balancing domain decomposition by constraints with overlapped coarse/fine corrections 

      Badia, Santiago; Martín Huertas, Alberto Francisco; Principe, Ricardo Javier (2015-12)
      Article
      Accés obert
      In this work, we analyze the scalability of inexact two-level balancing domain decomposition by constraints (BDDC) preconditioners for Krylov subspace iterative solvers, when using a highly scalable asynchronous parallel ...
    • Optimizing domain decomposition in an ocean model: the case of NEMO 

      Tintó, Oriol; Acosta, Mario; Castrillo, Miguel; Cortés, Ana; Sanchez, Alicia; Serradell, Kim; Doblas-Reyes, Francisco (Elsevier, 2017)
      Article
      Accés obert
      Earth System Models are critical tools for the study of our climate and its future trends. These models are in constant evolution and their growing complexity entails an incrementing demand of the resources they require. ...
    • Optimizing domain decomposition in an ocean model: the case of NEMO 

      Tinto, Oriol; Acosta, Mario; Castrillo, Miguel; Cortés, Ana; Sanchez, Alicia; Serradell, Kim; Doblas-Reyes, Francisco (Elsevier, 2017)
      Article
      Accés obert
      Earth System Models are critical tools for the study of our climate and its future trends. These models are in constant evolution and their growing complexity entails an incrementing demand of the resources they require. ...
    • Parallelizing general histogram application for CUDA architectures 

      Milic, Ugljesa; Gelado Fernandez, Isaac; Puzovic, Nikola; Ramírez Bellido, Alejandro; Tomasevic, Milo (IEEE Computational Intelligence Society, 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Histogramming is a tool commonly used in data analysis. Although its serial version is simple to implement, providing an efficient and scalable way to parallelize it can be challenging. This especially holds in case of ...
    • Robust and scalable domain decomposition solvers for unfitted finite element methods 

      Badia, Santiago; Verdugo Rojano, Francesc (2018-12)
      Article
      Accés obert
      Unfitted finite element methods, e.g., extended finite element techniques or the so-called finite cell method, have a great potential for large scale simulations, since they avoid the generation of body-fitted meshes and ...