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Optimizing a 3D-FWT Video Encoder for SMPs and HyperThreading Architectures

Summary: Optimizing a 3D-FWT Video Encoder for SMPs and HyperThreading
Ricardo Fern´andez Jos´e M. Garc´ia Gregorio Bernab´e
Manuel E. Acacio
Departamento de Ingenier´ia y Tecnolog´ia de Computadores
Universidad de Murcia
Campus de Espinardo - 30080 Murcia (Espa~na)
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 com-
pare them in terms of execution speed, ease of implemen-
tation and maintainability of the resulting code. Our exper-
iments show that while Pthreads provides the best results in
terms of execution time, OpenMP can provide a nearly op-
timal execution time without sacrificing the maintainability
of code.


Source: Acacio, Manuel - Departamento de Ingenieria y Tecnologia de Computadores, Universidad de Murcia


Collections: Computer Technologies and Information Sciences