关键词: 二维SIMD 共享主存 资源分配

Abstract:

The shared-memory 2D SIMD architecture is widely used as a multimedia accelerator in multimedia processing fields, and it can improve the computing ab  ility of processors for its data parallelisrm There are some research on the optimization techniques which can improve the speedup of multimedia applica  tions for the shared memory 2D SIMD architecture. However, their average resource utilization rate is less than 50%. In this paper, we first analyze the characteristics of the applications＇ execution process on the shared memory 2D SIMD architecture, and then propose an improved resource allocation met thod based on the original one in purpose of improving the average utilization rate of the SIMD units. Our experimental results show that our improved a lgorithm is useful for the performance improvement of most multimedia applications.

Key words: 2D SIMD, shared memory;resource allocation