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International Conference on Computing: Theory and Applications (ICCTA'07)
Faster Placer for Island-Style FPGAs
Kolkata, India
March 05-March 07
ISBN: 0-7695-2770-1
Pritha Banerjee, Indian Statistical Institute, India
Susmita Sur-Kolay, Indian Statistical Institute, India
In this paper, we propose a placement method for island-style FPGAs, based on fast yet very good initial placement followed by refinement using ultra-low temperature Simulated Annealing. The initial placement is the keystone of the method and the steps to obtain it are: top down coarse partitioning, allocation of partitions to regions on FPGA array, placement of logic blocks within each region and finally the IOs. The solutions thus obtained require 66% fewer moves i.e. about 3x speed-up during final iterative refinement by simulated annealing, whereas the quality of solution is on the average within 2% of optimal. The critical path length obtained after routing does not degrade for the set of 9 benchmark circuits.
Citation:
Pritha Banerjee, Susmita Sur-Kolay, "Faster Placer for Island-Style FPGAs," iccta, pp.117-121, International Conference on Computing: Theory and Applications (ICCTA'07), 2007
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