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| Content Provider | ACM Digital Library |
|---|---|
| Author | Cong, Jason Minkovich, Kirill |
| Abstract | Boolean matching (BM) is a widely used technique in FPGA resynthesis and architecture evaluation. In this paper we present several improvements to the recently proposed SAT-based Boolean matching formulation (SAT-BM-M) [11]. The principal improvement was achieved by deriving the SAT formulation using the implicant instead of minterm representation of the function to be matched. This enables our BM formulation to create a SAT problem of size O (as opposed to $O(m•2^{k})$ in the original formulation, where n is the number of inputs to the function, k is the size of the LUT, and m is the number of implicants, which is much smaller than 2 n and experimentally found to be around 3 . Using the new BM formulation, and considering 10-input functions, we can show an almost 3x run time improvement and can solve 5.6x more problems than the SAT-based BM formulation in [11]. Moreover, using this improved Boolean matching formulation, we implemented (as a proof of concept) a FPGA resynthesis tool, called RIMatch, which was able to reduce the number of LUTs produced by ZMap by 10% on the MCNC benchmarks. |
| Starting Page | 139 |
| Ending Page | 147 |
| Page Count | 9 |
| File Format | |
| ISBN | 9781595936004 |
| DOI | 10.1145/1216919.1216944 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2007-02-18 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Implicant Logic synthesis Fpga lookup table Sat Boolean matching |
| Content Type | Text |
| Resource Type | Article |
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