[RouterLookahead] Router Lookahead Report #3161
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Here is an example of what the report looks like: 
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@amin1377 FYI, you might find this option interesting. |
Added an option to generate a report on the router lookahead. This reports profiles the router lookahead by performing a set of trial routes from source RR nodes to all target RR nodes and comparing the estimated cost from the router lookahead to the actual cost of the path. Notably, this report tries to show the mean squared error of the router lookahead and the maximum overestimation of the router lookahead. The mean squared error is a measure of how accurate the router lookahead is. The more accurate the router lookahead is, the faster the path search will be (with less loss in quality). The max overestimation is a measure of the admissibility of the router lookahead heuristic. The more the router lookahead overestimates, the worse the quality of the path found (theoretically).
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Added an option to generate a report on the router lookahead. This reports profiles the router lookahead by performing a set of trial routes from source RR nodes to all target RR nodes and comparing the estimated cost from the router lookahead to the actual cost of the path.
Notably, this report tries to show the mean squared error of the router lookahead and the maximum overestimation of the router lookahead.
The mean squared error is a measure of how accurate the router lookahead is. The more accurate the router lookahead is, the faster the path search will be (with less loss in quality). The max overestimation is a measure of the admissibility of the router lookahead heuristic. The more the router lookahead overestimates, the worse the quality of the path found (theoretically).