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Area(number)-balanced hierarchy of staircase channels with minimum crossing nets

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4 Author(s)
Majumder, S. ; Astralsys Software (India) Pvt Ltd., Calcutta, India ; Sur-Kolay, S. ; Bhattacharya, B.B. ; Nandy, S.C.

We address the problem of hierarchically partitioning a VLSI floorplan F using monotone staircase channels to aid global routing. Our problem is to identify a monotone staircase channel (ms-cut) from one corner of F to its opposite corner, such that (i) the number of nets crossing the ms-cut is minimized, and (ii) the area (or the number of the blocks) of both the partitions are nearly equal. The problem is shown to be NP-hard, and a maxflow-based heuristic is proposed

Published in:

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on  (Volume:5 )

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