The-OpenROAD-Project
DRT: fix incremental updates in DRT
DRT used to clear special nets routing if it was used more than once i.e. by calling detailed_route command after pin_access command or calling detailed_route command multiple times. This PR fixes this issue.
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@maliberty I am having troubles with the metric updates resulting from this PR. Now, it's failing sky130hd_ibex with this which doesn't make any sense:
ibex_sky130hd (tcl) *FAIL* DRT::max_capacitance_slack -11% < -11%
ibex_sky130hd (tcl) *FAIL* DRT::max_capacitance_slack -11% < -11%
My guess is that rounding is making this look odd (@vvbandeira ) and you should just update it. In the metric_limits
"DRT::max_capacitance_slack" : "-11.363490057317899"
@maliberty The weird thing is that I updated it with the new value that I got from running the design on my local machine which is "DRT::max_capacitance_slack" : "-10.870980671686256". But I am getting a different value on jenkins!
ibex_sky130hd (tcl) *FAIL* DRT::max_capacitance_slack -11% < -11%My guess is that rounding is making this look odd (@vvbandeira ) and you should just update it. In the metric_limits
"DRT::max_capacitance_slack" : "-11.363490057317899"
We could change the formatting here: https://github.com/The-OpenROAD-Project/OpenROAD/blob/master/test/flow_metrics.tcl#L133
