Parallel signal routing
US8201130B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2010 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Nov 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/347
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for routing a circuit design netlist. Nets of the netlist are grouped into a plurality of sub-netlists. For each sub-netlist, nets of the sub-netlist are routed as a function of congestion between nets of the sub-netlist. Congestion between nets of other sub-netlists in the plurality of sub-netlists is not taken into account. If two or more nets of the netlist are routed through the same routing resource, a global congestion history data set is updated to describe congestion between all nets in the netlist, and the two or more nets of the netlist are unrouted. The two or more nets are each rerouted as a function of the global congestion history data set and congestion between nets of the same sub-netlist as the net.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.