set_router_tax
set_router_tax
-wrongway f_wrongWayTax
Description
Modifies the internal costs used by the router. These costs influence how the router routes wires.
Arguments
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-wrongway f_wrongWayTax
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Specifies the relative cost of using a wrong-way path to complete a connection versus using the preferred direction path and possibly additional ways. A real value greater than 0.0 and less than or equal to 100.0 can be specified, and represents a multiplier to the internal wrong-way cost set by the router. A tax greater than 1.0 tends to reduce the amount of wrong-way routing and increase the number of vias used. A tax less than 1.0 and greater than 0.0 tends to increase the amount of wrong-way routing used.
The wrong-way tax is recognized by the detail router.
Default: 1.0
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Examples
The following example reduces wrong-way tax from the default value of 1.0, increasing the likelihood that wrong-way routing will be used to complete connections.
set_router_tax -wrongway 0.50
Related Topics
Design Configuration Commands
get_router_tax
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