Invention Grant
- Patent Title: Latch clustering with proximity to local clock buffers
- Patent Title (中): 锁定聚类,靠近本地时钟缓冲区
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Application No.: US12912919Application Date: 2010-10-27
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Publication No.: US08458634B2Publication Date: 2013-06-04
- Inventor: Charles Jay Alpert , Zhuo Li , Gi-Joon Nam , David Anthony Papa , Chin Ngai Sze , Natarajan Viswanathan
- Applicant: Charles Jay Alpert , Zhuo Li , Gi-Joon Nam , David Anthony Papa , Chin Ngai Sze , Natarajan Viswanathan
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Garg Law Firm, PLLC
- Agent Rakesh Garg; Eustus D. Nelson
- Main IPC: G06F17/50
- IPC: G06F17/50

Abstract:
A method, system, and computer usable program product for latch clustering with proximity to local clock buffers (LCBs) where an algorithm is used to cluster a plurality of latches into a first plurality of groups in an integrated circuit. A number of groups in the first plurality of groups of clustered latches is determined. A plurality of LCBs are added where a number of added LCBs is the same as the number of groups in the first plurality of groups. A cluster radius for a subset of the first plurality of groups of clustered latches is determined, a group in the subset having a cluster radius that is a maximum cluster radius in the subset. The plurality of latches are reclustered into a second plurality of groups responsive to the maximum cluster radius exceeding a radius threshold, the second plurality of groups exceeding the first plurality of groups by one.
Public/Granted literature
- US20120110532A1 LATCH CLUSTERING WITH PROXIMITY TO LOCAL CLOCK BUFFERS Public/Granted day:2012-05-03
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