L3: An FPGA-based multilayer maze routing accelerator

被引:5
|
作者
Nestor, JA [1 ]
机构
[1] Lafayette Coll, Dept Elect & Comp Engn, Easton, PA 18042 USA
关键词
VLSI routine; hardware acceleration; Lee algorithm; FPGA design;
D O I
10.1016/j.micpro.2004.06.005
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
This paper describes a multi-layer maze routing accelerator which uses a two-dimensional array of processing elements (PEs) implemented in an FPGA. Routing for an L-layer NXN grid is performed by an array of NXN PEs that time-multiplex each layer over the array. This accelerates the classic Lee Algorithm from O(LXd(2)) in software to O(LXd). Each PE can be implemented in 32 look up tables in a Xilinx Virtex-II FPGA, which makes possible routing arrays that are large enough to support detailed routing for VLSI. Cycle measurements show a speedup of 50-75 X over a 2.54 GHz Pentium 4 for a 4-layer 8 X 8 array and 93 X for a 4-layer 16 X 16 array. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:87 / 97
页数:11
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