软硬件划分中基于一种新的层次化控制数据流图的粒度变换

Granularity Transformations Based on a New CDFG Format for Granularity Selection in Hardware-Software Partitioning

在一种控制数据流图定义的基础上 ,提出了面向软硬件划分中粒度选择的粒度变换方法 变换以层次化结点为中介 ,包括合并和展开操作 ,并遵循所指定的若干要求以保证变换前后的系统表示在形式和功能上的一致性 分析表明 ,这一变换过程简单快速 ,变换前后功能一致、形式统一 。

In this paper, granularity transformations based on a new CDFG format intended to support granularity selection in Hardware?Software partitioning are proposed. The transformations comprise the merge and expand operations, and use the hierarchical node as the transform bridge. Some requirements on the transformations are presented to maintain the syntax and semantics coherence of the system. The analysis shows that the proposed transformations are efficient, persistent and easy to implement. These features are suitable for the granularity selection in the Hardware-Software partitioning.