[ERROR MPL-0040] Failed on cluster frontend/bpd/banked_predictors_0/btb

[oharboe]

Describe the bug

This worked previously with same area, just a tiny change to the behavioral logic of one mocked SRAM: The-OpenROAD-Project/megaboom#135

untar https://drive.google.com/file/d/1AAwT9JdsLzWdspQP576nefa9m780JfiQ/view?usp=drive_link

./run-me-BoomTile-asap7-base.sh

Floorplan Outline: (0.0, 0.0) (2300.0, 2300.0),  Core Outline: (1.026, 1.08) (2297.97, 2297.97)
	Number of std cell instances: 1771752
	Area of std cell instances: 223780.94
	Number of macros: 70
	Area of macros: 485727.16
	Halo width: 19.00
	Halo height: 19.00
	Area of macros with halos: 1065893.00
	Area of std cell instances + Area of macros: 709508.12
	Core area: 5275827.50
	Design Utilization: 0.13
	Core Utilization: 0.05
	Manufacturing Grid: 1

[ERROR MPL-0040] Failed on cluster frontend/bpd/banked_predictors_0/btb
Error: macro_place_util.tcl, 83 MPL-0040

Expected Behavior

No error

Environment

OpenROAD v2.0-16257-g81b545063

To Reproduce

See above

Relevant log output

No response

Screenshots

No response

Additional Context

No response

[oharboe]

Tried to whittle down, but no luck... Apparently there's some unfortunate initial conditions that changed ever so slightly makes this not fail.

openroad -python ~/OpenROAD-flow-scripts/tools/OpenROAD/etc/deltaDebug.py --use_stdout --persistence 3 --error_string MPL-0040  --step ./run-me-BoomTile-asap7-base.sh --base_db_path results/asap7/BoomTile/base/2_3_floorplan_tdms.odb