|
Title:
|
On the scalability of 1- and 2-dimensional SIMD extensions for multimedia applications
|
|
Author:
|
Sánchez Castaño, Friman; Álvarez Mesa, Mauricio; Salamí San Juan, Esther; Ramírez Bellido, Alejandro; Valero Cortés, Mateo
|
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CAP - Grup de Computació d'Altes Prestacions |
|
Abstract:
|
SIMD extensions are the most common technique used in current processors for multimedia computing. In order to obtain more performance for emerging applications SIMD extensions need to be scaled. In this paper we perform a scalability analysis of SIMD extensions for multimedia applications. Scaling a 1-dimensional extension, like Intel MMX, was compared to scaling a 2-dimensional (matrix) extension. Evaluations have demonstrated that the 2-d architecture is able to use more parallel hardware than the 1-d extension. Speed-ups over a 2-way superscalar processor with MMX-like extension go up to 4X for kernels and up to 3.3X for complete applications and the matrix architecture can deliver, in some cases, more performance with simpler processor configurations. The experiments also show that the scaled matrix architecture is reaching the limits of the DLP available in the internal loops of common multimedia kernels. |
|
Abstract:
|
Peer Reviewed |
|
Subject(s):
|
-Àrees temàtiques de la UPC::Informàtica::Arquitectura de computadors
-Multimedia systems
-Operating systems (Computers)
-Parallel processing (Electronic computers)
-Program control structures
-Multimedia computing
-Operating system kernels
-Parallel architectures
-Sistemes multimèdia
-Sistemes operatius (Ordinadors)
-Processament en paral·lel (Ordinadors) |
|
Rights:
|
|
|
Document type:
|
Article - Published version
Conference Object |
|
Published by:
|
Institute of Electrical and Electronics Engineers (IEEE)
|
|
Share:
|
|
