一种面向雷达应用可重构系统中的数据缓存结构和管理机制

发布时间：2018-05-06 01:22

本文选题：可重构系统 + 数据缓存结构　；参考：《上海交通大学学报》2017年05期

【摘要】：针对面向雷达应用可重构系统中数据访存冲突严重、访存效率低等问题,设计了一种片上层次化缓存结构,并提出基于多存储体的线性步长可变的数据管理机制,通过建立计算阵列与各个存储体之间可配置的逻辑映射关系,有效降低了多个计算阵列并行工作时产生的访存冲突,提高了计算阵列的数据吞吐率,从而提高了可重构系统的数据访存性能.结果表明,该方案在有效控制硬件开销的同时,极大地提升了可重构系统的数据访存性能,以256~64×210快速傅里叶变换为例,与经典并行缓存机制相比,可重构系统的数据访存性能提升了26.09%~54.60%.
[Abstract]:In view of the serious conflict of data access in the radar application reconfigurable system and the low memory efficiency, an upper secondary cache structure is designed, and a variable data management mechanism based on the linear step length based on multi memory is proposed. By establishing the configurable logic mapping relationship between the computing array and each memory bank, the data management mechanism is effectively reduced. The memory access conflict caused by the parallel operation of multiple computing arrays improves the data throughput of the computing array and improves the data access performance of the reconfigurable system. The results show that the scheme greatly improves the data access performance of the reconfigurable system while controlling the hardware overhead effectively, and the 256~64 x 210 fast Fourier transform is used. For example, compared with classical parallel caching mechanism, the data access performance of reconfigurable system is improved by 26.09%~54.60%.

【作者单位】：东南大学国家专用集成电路系统工程技术研究中心;
【基金】：国家自然科学基金项目(61404028,61204023) 国家高技术研究发展计划(863)项目(2012AA012703)资助
【分类号】：TN957

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