util: Update and enhance correlateRC #3125
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Use `6_final.odb` guides as the basis for correlation. Make changes to the `6_net_rc.csv` format: * include information about the layer stack * include via count * include net classification (signal/clock) Change the method of obtaining the ground truth resistance from STA parasitic network. Include vias in correlation. Signed-off-by: Martin Povišer <[email protected]>
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After discussion with Matt this needs different via handling. |
OR has single per-layer via resistance setting (`set_layer_rc -via`) which applies to both estimation and final parasitics extraction. Given this the via resistances must enter the RC fit as constants, not variables. Signed-off-by: Martin Povišer <[email protected]>
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Via handling updated, see last commit for details |
maliberty
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Jun 4, 2025
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Use
6_final.odbguides as the basis for correlation.Make changes to the
6_net_rc.csvformat:Change the method of obtaining the ground truth resistance from STA parasitic network. Include vias in correlation.
Requires OR changes: The-OpenROAD-Project/OpenROAD#7254