Conclusions
- created new analytic techniques to design switch blocks
- checkerboards increase diversity
- commutative design simplifies analysis
- create diverse switch blocks
- diversity admirable goal (Wilton works well)
- maximizing diversity does not improve routability/area
- difficult for existing CAD algorithms
- new CAD algorithms needed?
- can save 3-4% area with different switch blocks
- by reducing flexibility (# of connections on endpoint)
- by adding diversity
- by other topological changes, eg using checkerboard
- is this the limit?
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