Optimizing a 3D-FWT video encoder for SMPs and HyperThreading architectures

Author

Fernández, Ricardo ; García, José M. ; Bernabe, Gregorio ; Acacio, Manuel E.

Author_Institution

Departamento de Ingenieria y Tecnologia de Computadores, Murcia Univ., Spain

fYear

2005

fDate

9-11 Feb. 2005

Firstpage

76

Lastpage

83

Abstract

In this work we evaluate the implementation of a video encoder based on the 3D wavelet transform optimized for HyperThreading technology and SMPs. We design several implementations of the parallel encoder with Pthreads and OpenMP using functional decomposition. Then, we compare them in terms of execution speed, ease of implementation and maintainability of the resulting code. Our experiments show that while Pthreads provides the best results in terms of execution time, OpenMP can provide a nearly optimal execution time without sacrificing the maintainability of code.

Keywords

Fourier transforms; multi-threading; multiprocessing systems; parallel architectures; video codecs; wavelet transforms; 3D wavelet transform; 3D-FWT video encoder; HyperThreading architecture; functional decomposition; parallel encoder; Computer architecture; Multithreading; Parallel processing; Process design; Surface-mount technology; Switched-mode power supply; Time sharing computer systems; Video compression; Wavelet transforms; Yarn;

fLanguage

English

Publisher

ieee

Conference_Titel

Parallel, Distributed and Network-Based Processing, 2005. PDP 2005. 13th Euromicro Conference on

ISSN

1066-6192

Print_ISBN

0-7695-2280-7

Type

conf

DOI

10.1109/EMPDP.2005.28

Filename

1386045