发明授权
- 专利标题: Local objective optimization in global placement of an integrated circuit design
- 专利标题(中): 集成电路设计的全局放置中的局部目标优化
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申请号: US13539428申请日: 2012-06-30
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公开(公告)号: US08595675B1公开(公告)日: 2013-11-26
- 发明人: Charles J. Alpert , Myung-Chul Kim , Gi-Joon Nam , Shyam Ramji , Natarajan Viswanathan
- 申请人: Charles J. Alpert , Myung-Chul Kim , Gi-Joon Nam , Shyam Ramji , Natarajan Viswanathan
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Yudell Isidore Ng Russell PLLC
- 主分类号: G06F9/455
- IPC分类号: G06F9/455 ; G06F17/50
摘要:
A global placement phase of physical design of an integrated circuit includes iteratively spreading a plurality of modules comprising the integrated circuit within a die area based on density of the plurality of modules and optimizing module placement by preserving global module density while improving a local objective, such as local wirelength and/or local density, in individual subareas among a plurality of subareas of the die area. After global placement, detailed placement of modules in the plurality of subareas is performed.
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