#1970 OpenROAD memory crash in antenna repaire in global routing Issue created by mo-hosni Description Memory utilization reaches 100% (67.1 GB) then the OR crashes in antenna repair in global routing. I faced this on 2 different macros since 30/August/2023. Changing some variables such as

FP_CORE_UTIL

or

PL_TARGET_DENSITY

gets the flow running but I think this should be investigated. Attached a screenshot of the memory utilization behavior, the utilization increases linearly since the start of global routing till it reaches 100% utilization. Expected Behavior OpenROAD shouldn't need 67GB of RAM to do antenna repair. Environment report

Kernel: Linux v6.2.0-31-generic
Distribution: ubuntu 23.04
Python: v3.11.4 (OK)
Container Engine: docker v24.0.5 (OK)
OpenLane Git Version: 2264b1240bacca90f8dfd74b8f5d62b7d618038e
pip: INSTALLED
python-venv: INSTALLED
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PDK Version Verification Status: OK
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Git Log (Last 3 Commits)

2264b124 2023-09-03T13:16:28+00:00 bump open_pdks version (#1969) - Kareem Farid -  (HEAD -> master, origin/master, origin/HEAD)
6a293792 2023-09-03T14:02:52+03:00 Add Banner for OpenLane 2 (#1966) - Mohamed Gaber -  ()
698c0fac 2023-09-03T14:02:00+03:00 Partially Revert "Illegal Overlap Check Fix" (#1967) - Mohamed Gaber -  ()
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Git Remotes

origin	git@github.com:The-OpenROAD-Project/OpenLane.git (fetch)
origin	git@github.com:The-OpenROAD-Project/OpenLane.git (push)

Reproduction material issue_reproducible.zip Relevant log output

[ERROR]: during executing openroad script /openlane/scripts/openroad/groute.tcl
[ERROR]: Log: ../home/hosni/ML-SOC/caravel-ML-SoC/openlane/SW_SHA256_AHBL/runs/23_09_03_17_57/logs/routing/23-global.log
[ERROR]: Last 10 lines:
met3             53990         13712           25.40%             0 /  0 /  0
met4             29572          5140           17.38%             0 /  0 /  0
---------------------------------------------------------------------------------------
Total           236746         91689           38.73%             0 /  0 /  0

[INFO GRT-0018] Total wirelength: 906839 um
[INFO GRT-0014] Routed nets: 13280
[INFO GRT-0006] Repairing antennas, iteration 1.
[INFO GRT-0043] No OR_DEFAULT vias defined.
child killed: kill signal

The-OpenROAD-Project/OpenLane