Routing with virtual channels
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United States of America Patent
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Oct 5, 2010
Grant Date -
Feb 19, 2009
app pub date -
Aug 12, 2008
filing date -
Aug 16, 2007
priority date (Note) -
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Abstract
An approach to introducing adaptive routing into a communication approach for passing messages between nodes over links between the nodes includes forming virtual channels over the links of the system and defining a deterministic routing function over the virtual channels such that the deterministic routing function is deadlock free. Adaptive routing is then permitted at nodes using the existing virtual channels by introducing a constraint on the available virtual channels used to forward communication that arrives at a node for a particular destination. The constraint on the virtual channels is such that the adaptive system is also deadlock free.
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