Now showing items 1-15 of 15

    • A parallel finite-element method for three-dimensional controlled-source electromagnetic forward modelling 

      Puzyrev, Vladimir; Koldan, Jelena; de la Puente, Josep; Houzeaux, Guillaume; Vázquez, Mariano; Cela, José M. (Wiley-Blackwell, 2013-02-18)
      Article
      Open Access
      We present a nodal finite-element method that can be used to compute in parallel highly accurate solutions for 3-D controlled-source electromagnetic forward modeling problems in anisotropic media. Secondary coupled-potential ...
    • A review of block Krylov subspace methods for multisource electromagnetic modelling 

      Puzyrev, Vladimir; Cela, José M. (Wiley-Blackwell, 2015-08)
      Article
      Open Access
      Practical applications of controlled-source electromagnetic modeling require solutions for multiple sources at several frequencies, thus leading to a dramatic increase of the computational cost. In this paper we present ...
    • Acceleration strategies for elastic full waveform inversion workflows in 2D and 3D 

      Kormann, Jean; Rodríguez, Juan E.; Ferrer, Miguel; Farrés, Albert; Gutiérrez, Natalia; de la Puente, Josep; Hanzich, Mauricio; Cela, José M. (Springer International Publishing, 2017-02-01)
      Article
      Open Access
      Full waveform inversion (FWI) is one of the most challenging procedures to obtain quantitative information of the subsurface. For elastic inversions, when both compressional and shear velocities have to be inverted, the ...
    • Algebraic multigrid preconditioning within parallel finite-element solvers for 3-D electromagnetic modelling problems in geophysics 

      Koldan, Jelena; Puzyrev, Vladimir; de la Puente, Josep; Houzeaux, Guillaume; Cela, José M. (Wiley-Blackwell, 2014-06)
      Article
      Open Access
      We present an elaborate preconditioning scheme for Krylov subspace methods which has been developed to improve the performance and reduce the execution time of parallel node-based finite-element solvers for three-dimensional ...
    • Alya: Multiphysics engineering simulation toward exascale 

      Vázquez, Mariano; Houzeaux, Guillaume; Koric, Seid; Artigues, Antoni; Aguado-Sierra, Jazmin; Arís, Ruth; Mira, Daniel; Calmet, Hadrien; Cucchietti, Fernando; Owen, Herbert; Taha, Ahmed; Burness, Evan D.; Cela, José M.; Valero Cortés, Mateo (Elsevier, 2016-02-01)
      Article
      Open Access
      Alya is a multi-physics simulation code developed at Barcelona Supercomputing Center (BSC). From its inception Alya code is designed using advanced High Performance Computing programming techniques to solve coupled problems ...
    • Applying future Exascale HPC methodologies in the energy sector 

      Camata, José J.; Cela, José M.; Costa, Danilo; Coutinho, Alvaro LGA; Fernández-Galisteo, Daniel; Jiménez, Carmen; Kourdioumov, Vadim; Mattoso, Marta; Mayo-García, Rafael; Miras, Thomas; Moríñigo, José A.; Navarro, Jose; Oliveira, Daniel de; Rodríguez-Pascual, Manuel; Silva, Vítor; Souza, Renan; Valduriez, Patrick (2016-09-26)
      Conference lecture
      Open Access
      The appliance of new exascale HPC techniques to energy industry simulations is absolutely needed nowadays. In this sense, the common procedure is to customize these techniques to the specific energy sector they are of ...
    • Assessment of edge-based finite element technique for geophysical electromagnetic problems: efficiency, accuracy and reliability 

      Castillo-Reyes, Octavio; de la Puente, Josep; Puzyrev, Vladimir; Cela, José M. (International Center for Numerical Methods in Engineering (CIMNE), 2015-04)
      Conference lecture
      Open Access
      In Finite Element Methods for solving electromagnetic field problems, the use of Edge Elements has become very popular. In fact, Edge Elements are often said to be a cure to many difficulties that are encountered (particularly ...
    • Edge-based electric field formulation in 3D CSEM simulations: A parallel approach 

      Castillo-Reyes, Octavio; de la Puente, Josep; Puzyrev, Vladimir; Cela, José M. (IEEE, 2015-10)
      Conference report
      Open Access
      This paper presents a parallel computing scheme for the data computation that arise when applying one of the most popular electromagnetic methods in exploration geophysics, namely, controlled-source electromagnetic (CSEM). ...
    • Edge-based parallel framework for the simulation of 3d CSEM surveys 

      Castillo-Reyes, Octavio; de la Puente, Josep; Puzyrev, Vladimir; Cela, José M. (Society of Exploration Geophysicists and American Association of Petroleum Geologists, 2016)
      Conference lecture
      Open Access
    • Edge-elements for geophysical electromagnetic problems: a new implementation challenge 

      Castillo-Reyes, Octavio; de la Puente, Josep; Puzyrev, Vladimir; Cela, José M. (2015-05)
      Conference lecture
      Open Access
    • Elastic Full Waveform Inversion (FWI) of reflection data with a phase misfit function 

      Kormann, Jean; Rodríguez, Juan E.; Ferrer, Miguel; Gutiérrez, Natalia; de la Puente, Josep; Hanzich, Mauricio; Cela, José M. (Springer International Publishing, 2016-04-08)
      Part of book or chapter of book
      Open Access
      Full Waveform Inversion of elastic dataset is challenging due to the complexity introduced by free-surface effects or P-S wave conversions among others. In this context, large offsets are preferred for inversion because ...
    • Enhancing Energy Production with Exascale HPC Methods 

      Camata, José J.; Cela, José M.; Costa, Danilo; Coutinho, Alvaro LGA; Fernández-Galisteo, Daniel; Jiménez, Carmen; Kourdioumov, Vadim; Mattoso, Marta; Mayo-García, Rafael; Miras, Thomas; Moríñigo, José A.; Navarro, Jorge; Navaux, Philippe O.A.; Oliveira, Daniel de; Rodríguez-Pascual, Manuel; Silva, Vítor; Souza, Renan; Valduriez, Patrick (2016)
      Conference lecture
      Open Access
      High Performance Computing (HPC) resources have become the key actor for achieving more ambitious challenges in many disciplines. In this step beyond, an explosion on the available parallelism and the use of special ...
    • First experience with particle-in-cell plasma physics code on ARM-based HPC systems 

      Sáez, Xavier; Soba, Alejandro; Sánchez, Edilberto; Mantsinen, Mervi; Mateo, Sergio; Cela, José M.; Castejón, Francisco (IOP Publishing, 2015-09-28)
      Article
      Open Access
      In this work, we will explore the feasibility of porting a Particle-in-cell code (EUTERPE) to an ARM multi-core platform from the Mont-Blanc project. The used prototype is based on a system-on-chip Samsung Exynos 5 with ...
    • Optimization of atmospheric transport models on HPC platforms 

      de la Cruz, Raúl; Folch, Arnau; Farré, Pau; Cabezas, Javier; Navarro, Nacho; Cela, José M. (Elsevier, 2016-12)
      Article
      Open Access
      The performance and scalability of atmospheric transport models on high performance computing environments is often far from optimal for multiple reasons including, for example, sequential input and output, synchronous ...
    • Parallel and numerical issues of the edge finite element method for 3D controlled-source electromagnetic surveys 

      Castillo-Reyes, Octavio; de la Puente, Josep; Puzyrev, Vladimir; Cela, José M. (IEEE, 2015-10)
      Conference report
      Open Access
      This paper deals with the most relevant parallel and numerical issues that arise when applying the Edge Element Method in the solution of electromagnetic problems in exploration geophysics. In this sense, in recent years ...