I have two SPICE netlists that I would like to compare with LVS, and I do not have the .gds layout file. This should be the second step of the Two-Step Calibre nmLVS-H Data Flow. The documentation says that I should use "calibre -lvs -hier" to do the comparison. However I get the error:
ERROR: Failure to open input file filename.gds for read access.
How do I compare two netlists without going through the extraction step?