Fortran legacy code performance optimization : sequential and parallel processing with OpenMP
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| Otros autores o Colaboradores: | , , |
| Formato: | Capítulo de libro |
| Lengua: | inglés |
| Acceso en línea: | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5171383 Consultar en el Cátalogo |
| Resumen: | Several optimization alternatives are presented for legacy Fortran 77 scientific programs, each one with a quantitative characterization in terms of performance gain. Initially, sequential optimization is focused on the analisys of Level 3 BLAS (Basic Linear Algebra Subroutines) utiliza- tion, since BLAS have several performance optimized implementations. Also, the Fortran 90/95 array notation is used as a code upgrade from Fortran 77 to Fortran 90/95 and, also, to provide the compiler a better source code for performance optimization. Since the shared memory parallel computing model is widely available (multiple cores and/or processors), the analysis of possible parallel processing via OpenMP is presented, along with the performance gain in a specific case. Sequential optimization as well parallelization work is done on a real (production code) program: a weather climate model implemented about two decades ago and used for climate research. |
| Notas: | Formato de archivo: PDF. -- Este documento es producción intelectual de la Facultad de Informática-UNLP (Colección BIPA / Biblioteca.) -- Disponible también en línea (Cons. 10/06/2014) |
| Descripción Física: | 1 archivo (223,7 kB) |