Computational time improvement for some shallow water finite volume models applying parallelization and optimized small matrix computations
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[1] Universidad de Málaga
Universidad de Málaga
Málaga, España
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- Localización: Numerical Mathematics and Advanced Applications: ENUMATH 2005 / coord. por Alfredo Bermúdez de Castro y López-Varela, Mª Dolores Gómez Pedreira, Peregrina Quintela Estevez, Pilar Salgado Rodríguez, 2006, ISBN 978-3-540-34287-8, págs. 288-296
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
The goal of this paper is to construct efficient finite volume parallel solvers on non-structured grids for 2d hyperbolic systems of conservation laws with source terms and nonconservative products using SIMD registers. Line method is applied: at every intercell a projected Riemann problem along the normal direction is considered (see [2]). The resulting 2d numerical schemes are explicit and first order accurate. The solver is parallelized following a SIMD approach, by means of SSE ("Streaming SIMD Extensions"), which are present in common processors. A generic C++ wrapper to small matrices libraries that make use of SIMD instructions has been implemented in an efficient way and an application to IPP small matrix library is presented.
