异构多处理器SoC 的应用算法性能优化方法

在嵌入式多媒体处理领域中,多处理器片上系统(multi-processor system-on-chip,简称MPSoC)的应用越来越广泛.多媒体处理MPSoC通常采用"主处理器核+多个异构协处理器核"的主流体系结构.该结构兼顾了MPSoC系统的通用性与灵活性、性能与功耗,但也向MPSoC的性能优化方法提出了更高的要求.针对异构MPSoC上的多媒体应用算法,提出了一种MPSoC多媒体处理性能优化方法.该方法经过应用特征分析、循环仿射划分、应用向MPSoC各处理器核的映射,实现了优化的数据局部性与多级并行性,从而提高了异构MPSoC上多媒体应用算法的性能.实验结果表明,该方法对于多媒体应用算法在异构MPSoC上的处理性能优化方面取得了明显效果.

Performance Optimization of Application Algorithms for Heterogeneous Multi-Processor System-on-Chips

MPSoCs(multi-processor system-on-chips)are comprehensively applied in the embedded multimedia processing field.Multimedia MPSoCs often adopt thehost processor+multiple heterogeneous synergistic processorarchitecture,which makes the trade-off between universality and flexibility.MPSoCs also take into consideration both performance and power-consumption,but challenges the method of performance optimization of System-on-Chip applications.This paper proposes an approach that improves the performance of applicat...