Exploració per autor "Martín Huertas, Alberto Francisco"Més informació

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    • 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 ...

    • Assessing the impact of the CPU power-saving modes on the task-parallel solution of sparse linear systems 

      Aliaga, José Ignacio; Barreda, María; Dolz, Manuel F.; Martín Huertas, Alberto Francisco; Mayo, Rafael; Quintana Ortí, Enrique Salvador (Kluwer Academic Publishers, 2014-12-01)
      Article
      Accés restringit per política de l'editorial
      We investigate the benefits that an energy-aware implementation of the runtime in charge of the concurrent execution of ILUPACK—a sophisticated preconditioned iterative solver for sparse linear systems—produces on the ...

    • Balancing domain decomposition by constraints associated with subobjects 

      Badia, Santiago; Martín Huertas, Alberto Francisco; Nguyen, Hieu Trung (Elsevier, 2019-01)
      Article
      Accés obert
      A simple variant of the BDDC preconditioner in which constraints are imposed on a selected set of subobjects (subdomain subedges, subfaces and vertices between pairs of subedges) is presented. We are able to show that the ...

    • Block recursive LU preconditioners for the thermally coupled incompressible inductionless MHD problem 

      Badia, Santiago; Martín Huertas, Alberto Francisco; Planas Badenas, Ramon (2013)
      Report de recerca
      Accés obert
      The thermally coupled incompressible inductionless magnetohydrodynamics (MHD) problem models the ow of an electrically charged fuid under the in uence of an external electromagnetic eld with thermal coupling. This system ...

    • Design, tuning and evaluation of parallel multilevel ILU preconditioners 

      Aliaga, José Ignacio; Bollhoefer, Matthias; Martín Huertas, Alberto Francisco; Quintana Ortí, Enrique Salvador (2008)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In this paper, we present a parallel multilevel ILU preconditioner implemented with OpenMP. We employ METIS partitioning algorithms to decompose the computation into concurrent tasks, which are then scheduled to threads. ...

    • 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.

    • FEMPAR: an object-oriented parallel finite element framework 

      Badia, Santiago; Martín Huertas, Alberto Francisco; Principe, Ricardo Javier (2018-04)
      Article
      Accés obert
      FEMPAR is an open source object oriented Fortran200X scientific software library for the high-performance scalable simulation of complex multiphysics problems governed by partial differential equations at large scales, by ...

    • FEMPAR: Scaling Multi-Level Domain Decomposition up to the full JUQUEEN supercomputer 

      Martín Huertas, Alberto Francisco; Badia, Santiago; Principe, Ricardo Javier (2015)
      Report de recerca
      Accés obert
      In conjunction with this year's JUQUEEN Porting and Tuning Workshop, which is part of the PRACE Advanced Training Centres curriculum, JSC continued its series of BlueGene Extreme Scaling Workshops. Seven application teams ...

    • 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.

    • Leveraging Task-Parallelism in Energy-Efficient ILU preconditioners 

      Aliaga, José Ignacio; Dolz Zaragozá, Manuel Francisco; Martín Huertas, Alberto Francisco; Mayo, Rafael; Quintana Ortí, Enrique Salvador (Springer, 2012)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      We analyze the energy-performance balance of a task-parallel computation of an ILU-based preconditioner for the solution of sparse linear systems on multi-core processors. In particular, we elaborate a theoretical model ...

    • Leveraging task-parallelism in message-passing dense matrix factorizations using SMPSs 

      Martín Huertas, Alberto Francisco; Reyes, Ruyman; Badia Sala, Rosa Maria; Quintana Ortí, Enrique Salvador (2014-05)
      Article
      Accés obert
      In this paper, we investigate how to exploit task-parallelism during the execution of the Cholesky factorization on clusters of multicore processors with the SMPSs programming model. Our analysis reveals that the major ...

    • Mixed aggregated finite element methods for the unfitted discretization of the Stokes problem 

      Badia, Santiago; Martín Huertas, Alberto Francisco; Verdugo Rojano, Francesc (2018-12-18)
      Article
      Accés obert
      In this work, we consider unfitted finite element methods for the numerical approximation of the Stokes problem. It is well-known that these kinds of methods lead to arbitrarily ill-conditioned systems and poorly approximated ...

    • 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 ...

    • Numerical modelling of heat transfer and experimental validation in powder-bed fusion with the virtual domain approximation 

      Miranda Neiva, Eric; Chiumenti, Michele; Cervera Ruiz, Miguel; Salsi, Emilio; Piscopo, Gabriele; Badia, Santiago; Martín Huertas, Alberto Francisco; Chen, Zhuoer; Lee, Caroline; Davies, Christopher (2020-01)
      Article
      Accés obert
      Among metal additive manufacturing technologies, powder-bed fusion features very thin layers and rapid solidification rates, leading to long build jobs and a highly localized process. Many efforts are being devoted to ...

    • On a general implementation of h- and p-adaptive curl-conforming finite elements 

      Olm Serra, Marc; Badia, Santiago; Martín Huertas, Alberto Francisco (2019-06)
      Article
      Accés obert
      Edge (or Nédélec) finite elements are theoretically sound and widely used by the computational electromagnetics community. However, its implementation, especially for high order methods, is not trivial, since it involves ...

    • 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 ...

    • Physics-based balancing domain decomposition by constraints for multi-material problems 

      Badia, Santiago; Martín Huertas, Alberto Francisco; Nguyen, Hieu Trung (2019-05)
      Article
      Accés obert
      In this work, we present a new variant of the balancing domain decomposition by constraints preconditioner that is robust for multi-material problems. We start with a well-balanced subdomain partition, and based on an ...

    • Scalable solvers for complex electromagnetics problems 

      Badia, Santiago; Martín Huertas, Alberto Francisco; Olm Serra, Marc (2019-09)
      Article
      Accés obert
      In this work, we present scalable balancing domain decomposition by constraints methods for linear systems arising from arbitrary order edge finite element discretizations of multi-material and heterogeneous 3D problems. ...

    • Simulation of high temperature superconductors and experimental validation 

      Olm Serra, Marc; Badia, Santiago; Martín Huertas, Alberto Francisco (2019-04)
      Article
      Accés obert
      In this work, we present a parallel, fully-distributed finite element numerical framework to simulate the low-frequency electromagnetic behaviour of superconducting devices, which efficiently exploits high performance ...

    • Symmetric rank-k update on clusters of multicore processors with SMPSs 

      Badia Sala, Rosa Maria; Labarta Mancho, Jesús José; Marjanovic, Vladimir; Martín Huertas, Alberto Francisco; Mayo, Rafael; Quintana Ortí, Enrique Salvador; Reyes, Ruymán (IOS Press, 2011)
      Comunicació de congrés
      Accés obert
      We investigate the use of the SMPSs programming model to leverage task parallelism in the execution of a message-pas sing implementation of the symmetric rank- k update on clusters equipped with multicore processors. Our ...