Asynchronous Preconditioners for Efficient Solving of Non-linear Deformations

Courtecuisse, Hadrien; Allard, Jérémie; Duriez, Christian; Cotin, Stéphane

Document type :

Communication dans un congrès avec actes

DOI :

10.2312/PE/vriphys/vriphys10/059-068

Title :

Asynchronous Preconditioners for Efficient Solving of Non-linear Deformations

Author(s) :

Courtecuisse, Hadrien [Auteur]
Simulation in Healthcare using Computer Research Advances [SHACRA]
Allard, Jérémie [Auteur]
Simulation in Healthcare using Computer Research Advances [SHACRA]
Duriez, Christian [Auteur]

Simulation in Healthcare using Computer Research Advances [SHACRA]
Cotin, Stéphane [Auteur]
Simulation in Healthcare using Computer Research Advances [SHACRA]

Conference title :

VRIPHYS - Virtual Reality Interaction and Physical Simulation

City :

Copenhagen

Country :

Danemark

Start date of the conference :

2010-11-11

Publisher :

Eurographics Association

Publication date :

2010-11

HAL domain(s) :

Informatique [cs]/Synthèse d'image et réalité virtuelle [cs.GR]

English abstract : [en]

In this paper, we present a set of methods to improve numerical solvers, as used in real-time non-linear deformable models based on implicit integration schemes. The proposed approach is particularly beneficial to simulate ...
Show more >In this paper, we present a set of methods to improve numerical solvers, as used in real-time non-linear deformable models based on implicit integration schemes. The proposed approach is particularly beneficial to simulate nonhomogeneous objects or ill-conditioned problem at high frequency. The first contribution is to desynchronize the computation of a preconditioner from the simulation loop.We also exploit today's heterogeneous parallel architectures: the graphic processor performs the mechanical computations whereas the CPU produces efficient preconditioners for the simulation. Moreover, we propose to take advantage of a warping method to limit the divergence of the preconditioner over time. Finally, we validate our work with several preconditioners on different deformable models. In typical scenarios, our method improves significantly the performances of the perconditioned version of the conjugate gradient.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL

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