High-quality global routing for multiple dynamic supply voltage designs

Wen Hao Liu*, Yih-Lang Li, Kai Yuan Chao

*此作品的通信作者

研究成果: Conference contribution同行評審

9 引文 斯高帕斯(Scopus)

摘要

Multiple dynamic supply voltage (MDSV) provides an effective way to reduce dynamic power and is widely used in high-end or low-power designs. The challenge of routing MDSV designs is that the net in MDSV designs needs to be planned carefully to avoid electrical problems or functional failure as a long interconnect path pass through the shutdown power domains. As the first work to address the MDSV global routing problem, power domain-aware routing (PDR) problem is defined and the point-to-point PDR algorithm is also presented herein with look-ahead path selection method and look-up table acceleration approach. For multi-pin net routings, a novel constant-time table-lookup mechanism by invoking four enhanced monotonic routings to fast compute the least-cost monotonic path from every node to the target sub-tree is presented to speed up the query about routing cost (including driven-length slack) to target during multi-source multi-target PDR. Experimental results confirm that the proposed MDSV-based global router can efficiently identify legally optimized routing results for MDSV designs, and can effectively reduce overflow, wire length, inserted level shifters and runtime.

原文English
主出版物標題2011 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2011
頁面263-269
頁數7
DOIs
出版狀態Published - 2011
事件2011 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2011 - San Jose, CA, United States
持續時間: 7 11月 201110 11月 2011

出版系列

名字IEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD
ISSN(列印)1092-3152

Conference

Conference2011 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2011
國家/地區United States
城市San Jose, CA
期間7/11/1110/11/11

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