Detailed routing DRC violation that can be removed

[oharboe]

Describe the bug

Toggling routing guides on/off, we can see that the routing guide is too tight. The net is forced too close to the macro.

Later, a metal spacing DRC error can't be fixed:

Expected Behavior

Better routing guides so that detailed routing can work.

Environment

OpenROAD v2.0-11638-g1a366db1e

To Reproduce

1. untar https://drive.google.com/file/d/1sUksInXz7DYJ0fBVSh6JhqbaB5p4p-2x/view?usp=sharing
2. Run ./run-me-BoomNonBlockingDCache-asap7-base.sh

Relevant log output

No response

Screenshots

No response

Additional Context

No response

[oharboe]

@maliberty Reproducible case where the routing guide is too close to the macro making it impossible in detailed routing to get away from the macro.

[maliberty]

As a workaround you might try "set_macro_extension 2"

[oharboe]

As a workaround you might try "set_macro_extension 2"

Thanks!

I am not held up by this, I just provided this test case because, as I recall @eder-matheus was interested in a reproducible case

[eder-matheus]

Using the latest version of OpenROAD, the DRCs are being fixed. We had a couple of updates in GRT related to regions near macros that probably solved the issue you was facing with this design.