The-OpenROAD-Project
grt-226 error during antenna repair
Describe the bug
When performing antenna repair I'm getting:
[ERROR GRT-0226] Type2 ripup not type L.
I was not getting this error when running global routing and antenna repair as part of the same session. The only thing that changes was saving the database to disk and loading it for antenna repair.
Expected Behavior
No failure
Environment
OpenROAD v2.0-16595-g2f10d9354
Features included (+) or not (-): +Charts +GPU +GUI +Python
To Reproduce
sc_issue_picorv32_job0_route.antenna_repair0_20241017-200804.tar.gz
tar xvf sc_issue_picorv32_job0_route.antenna_repair0_20241017-200804.tar.gz
cd sc_issue_picorv32_job0_route.antenna_repair0_20241017-200804
./run.sh
Relevant log output
[INFO ANT-0002] Found 11 net violations.
[INFO ANT-0001] Found 13 pin violations.
[INFO GRT-0012] Found 11 antenna violations.
[INFO GRT-0015] Inserted 13 diodes.
[ERROR GRT-0226] Type2 ripup not type L.
Screenshots
No response
Additional Context
No response
@gadfort We don't have a proper support yet for antenna repair from the guides in odb. We recently added support for parasitics estimation from the odb guides, but repair_antennas wasn't tested yet.
I will investigate what needs to be done to have full support for repair antennas.
@eder-matheus thanks for clarifying it would be nice to be able to support it if possible
@eder-matheus does this also mean that incremental grt is also not supported or post drt antenna repair?
@eder-matheus does this also mean that incremental grt is also not supported or post drt antenna repair?
Post-GRT timing repair should work when reading the an odb file. Post-DRT should also work since it uses the odb wires to detect violations and to calculate the available resources in the design.
Only repair antennas from guides in odb that is not supported yet.