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Hypercube and DOR routing changes #5

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Hypercube and DOR routing changes #5

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Commits on Jun 10, 2016

  1. Implement hypercube and mesh oriented DOR routing. 

    This is dependent on the switches being consistently cabled in
port-to-dimension order.  It is activated by setting the Hypercube tag
to 1 in the sm section of the xml file.  Either the shortestpath or
dgshortestpath RoutingAlgorithm can be used.  Traffic is distributed
only across the port group associated with the lowest dimension to a
neighbor switch along a shortest path.  The cost of a hop needs to be
constant so that it follows dimension ordering rules and is not
influenced by differing port speeds.
    Dale Purdy authored and root committed Jun 10, 2016
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  2. Implement a switch port order and cost feature. 

    This affects the order that ports are examined for the hypercube
routing.  This effectively provides an override to the port <->
dimension mapping.  It can also affect the distribution of traffic to
ports for (dg)shortestpath routing.  The cost of each port can also
be altered, which will affect the shortest path calculation.
    Dale Purdy authored and root committed Jun 10, 2016
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    e31286b View commit details
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