stefanottili

One more datapoint with regard to ispd15 global placement contest: mgc_superblue12 doesn't finish global_place "out of the box" either, but with a different ERROR. .... [NesterovSolve] Iter: 500 overflow: 0.224655...

Seems to be related to https://github.com/The-OpenROAD-Project/OpenROAD/issues/2580

OpenRoad already handles the “zoom in” gesture by drawing a rectangle, so implementing a fit if “move right up” and zoom out for “move left up” doesn’t need any more...

Reading multiple def is currently only for the purpose of visualization. Keep in mind that there might be more then two levels of def file hierarchy. Link the def components...

I have no idea where ./objects/sky130hd/gcd/base/klayout.lyt is coming from. Is it "hand written" or generated by yet another script from some other source ? Is 1:n mapping for def PIN...

I'm using klayout with lef+def without any issues, but what's the point ? Openroad is much better at viewing/debugging lef/def files then klayout. You have netlist and timing information and...

on M1 lastest master: homebrew qt 5.15.13 coredump homebrew qt 6.7 works

git checkout origin/bugfix/issue-1706 fixes the coredump on M1 Sonoma. The fact that it went unreported for so many versions just might indicate that nobody is using this feature ...

There are three ways to generate fill: openroad, magic and klayout. 1) openroad operates on lef MACRO PIN/OBS whereas magic and klayout use "layout" aka gds/oasis input. 2) magic (used...

Slightly off-topic, but using this design as an example: The current design finish stage using klayout with klayout.tcl calling def2stream.py can be replaced by strm2gds or strm2oas. The one thing...