Retiming and its Applications


Retiming is a transformation that optimizes a sequential circuit by relocating the registers. In the first part of the talk I will describe a new efficient retiming algorithm for performance optimization. The retiming determined by the algorithm is the easiest one for finding an equivalent initial state, and if logic modification is required, it incurs minimal amount of modification. I will also describe a new retiming and resynthesis approach to sequential timing optimization. The approach is oblivious of register boundaries during resynthesis. In addition, it guides resynthesis by a criterion that is directly tied to the given performance target. The proposed approach obtains provable results under certain conditions.
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