MaizeRouter: Engineering an effective global router

In this paper, we present the complete design and architectural details of MAIZEROUTER. MAIZEROUTER reflects a significant leap in progress over existing publicly available routing tools yet relies upon relatively simple operations, including extreme edge shifting, a technique aimed primarily at the efficient reduction of routing congestion, and edge retraction, a counterpart to extreme edge shifting that serves to reduce unnecessary wirelength. We present enhanced variations of these operations to enable the rapid exploration of candidate paths, along with a form of dynamic cost deflation that provides our various path computation procedures with progressively more accurate (and less optimistic) cost information as search continues. These algorithmic contributions are built upon a framework of interdependent net decomposition, a representation that improves upon traditional two-pin net decomposition by preventing duplication of routing resources while enabling cheap and incremental to...

• Type: Conference
• Year: 2008
• Where: ASPDAC
• Authors: Michael D. Moffitt
• Keywords: ASPDAC 2008, Available Routing Tools, Extreme Edge, Hardware, Net Decomposition