首页|面向阵列处理器的主动式自重构机制研究与实现

面向阵列处理器的主动式自重构机制研究与实现

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高效视频编码技术中复杂的计算过程对硬件的处理速度、资源占用和功耗等性能产生影响.可重构计算技术能够通过重新编程来适应视频算法中的复杂计算需求,并进行算法迭代和优化,从而提升算法的运行效率.但传统上位机实现动态重构的方法存在重构时间长和重构效率低的问题,限制了可重构结构的性能提升.为了降低重构时间,加速硬件重构过程,提出了一种指令流驱动的主动式自重构方法,充分利用了可重构阵列丰富的处理单元资源,通过处理单元自主监测阵列的执行状态,根据监测结果自主实现功能重构.实验结果表明,与传统的集中控制型可重构阵列处理器相比,去块滤波的动态重构过程中,计算速度提升了 25%,配置时间减少了 27%.
Research and Implementation of an Active Self-Reconfiguration Mechanism for Array Processors
The complex computational requirements of high efficiency video coding technology result in prolonged processing time,adversely affecting real-time performance and overall efficiency of the hardware processing.Reconfigurable computing technology,capable of adapting to complex computational demands in video algorithms through reprogramming,facilitates algorithm iteration and optimization,thereby can improve efficiency.However,the traditional approach of implementing dynamic reconfiguration on a host computer suffers from issues such as long reconfiguration time and low reconfiguration efficiency,which constrains the performance enhancement of reconfigurable architectures.In order to reduce the reconfiguration time and accelerate the hardware reconfiguration process,an active self-reconfiguration method driven by instruction flow is proposed.The method fully utilizes the rich processing element resources of the reconfigurable array,autonomously monitors the execution state of the array through the processing element,and autonomously realizes functional reconfiguration according to the monitoring results.The experimental results show that compared with traditional centralized control reconfigurable array processors,the dynamic reconstruction process of deblocking filtering improves calculation speed by 25% and reduces configuration time by 27% .

reconfigurable computing structurearray processoractive self-reconfigurationautonomous monitordeblocking filtering

山蕊、郑逸凡、夏馨缘、杨坤、宋宇鹏

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西安邮电大学电子工程学院,西安 710061

西安科技大学安全科学与工程学院,西安 710054

可重构计算结构 阵列处理器 主动式自重构 自主监测 去块滤波

2024

北京邮电大学学报
北京邮电大学

北京邮电大学学报

CSTPCD北大核心
影响因子:0.592
ISSN:1007-5321
年,卷(期):2024.47(5)