Noah Moroze

07/27/2021, 5:19 PM
Has anyone noticed OpenLANE taking a couple hours to do PDN generation (this is for hardening a custom macro, being driven through the caravel_user_project flow)? For me it spends a lot of time repeatedly printing out warnings of the form:
[WARNING PSM-0030] Vsrc location at (6118.224um, 4863.584um) and size =10.000um, is not located on a power stripe. Moving to closest stripe at (6165.840um, 4865.400um).

Matthew Guthaus

07/27/2021, 5:43 PM
This is the option to verify connectivity. I disable it since it will get checked in LVS too... set ::env(FP_PDN_CHECK_NODES) 0

Noah Moroze

07/27/2021, 6:29 PM
ah great, thanks for the pointer!