并发逻辑重构和定时闭包的放置

J. Lou, Wei Chen, Massoud Pedram
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引用次数: 28

摘要

提出了一种逻辑重构与布局同步的算法。该算法首先沿关键路径构造一组超级单元,然后为每个超级单元生成一组非劣重映射解。通过求解一个广义几何规划(GGP)问题,得到了所有超级单元的最佳映射和放置解。识别和优化关键路径的过程不断迭代,直到实现定时关闭。在一组MCNC基准上的实验结果证明了该算法的有效性。
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Concurrent logic restructuring and placement for timing closure
An algorithm for simultaneous logic restructuring and placement is presented. This algorithm first constructs a set of super-cells along the critical paths and then generates the set of non-inferior re-mapping solutions for each super-cell. The best mapping and placement solutions for all super-cells are obtained by solving a generalized geometric programming (GGP) problem. The process of identifying and optimizing the critical paths is iterated until timing closure is achieved. Experimental results on a set of MCNC benchmarks demonstrate the effectiveness of our algorithm.
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