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Página principal > Artículos > Artículos publicados > Implementation of the DWT in a GPU through a register-based strategy |
Fecha: | 2015 |
Resumen: | The release of the CUDA Kepler architecture in March 2012 has provided Nvidia GPUs with a larger register memory space and instructions for the communication of registers among threads. This facilitates a new programming strategy that utilizes registers for data sharing and reusing in detriment of the shared memory. Such a programming strategy can significantly improve the performance of applications that reuse data heavily. This paper presents a register-based implementation of the Discrete Wavelet Transform (DWT), the prevailing data decorrelation technique in the field of image coding. Experimental results indicate that the proposed method is, at least, four times faster than the best GPU implementation of the DWT found in the literature. Furthermore, theoretical analysis coincide with experimental tests in proving that the execution times achieved by the proposed implementation are close to the GPU's performance limits. |
Ayudas: | Ministerio de Economía y Competitividad RYC-2010- 05671 Ministerio de Economía y Competitividad TIN2011-28689-C02-1 Ministerio de Economía y Competitividad TIN2012-38102-C03-03 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-691 |
Derechos: | Tots els drets reservats. |
Lengua: | Anglès |
Documento: | Article ; recerca ; Versió sotmesa a revisió |
Materia: | Compute Unified Device Architecture (CUDA) ; DWT ; Discrete Wavelet Transform (DWT) ; Graphics Processing Unit (GPU) |
Publicado en: | IEEE transactions on parallel and distributed systems, Vol. 26 Issue 12 (December 2015) , p. 3394-3406, ISSN 1045-9219 |
Pre-print 14 p, 1.5 MB |