TY  - GEN
AU  - Tinetti,Fernando Gustavo
AU  - López,Mónica A.
AU  - Cajaraville,Pedro G.
AU  - Rodrigues,Diego L.
TI  - Fortran legacy code performance optimization: sequential and parallel processing with OpenMP
N1  - 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); World Congress on Computer Science and Information Engineering (2009)
N2  - 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
UR  - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5171383
ER  -