#1763 RePlAce divergence detected on small design Issue created by mattvenn Description On this design gbsha/ttfir@0be0ce8 We are getting

RePlAce divergence detected. Re-run with a smaller max_phi_cof value.

Yosys report is ~200 cells and ~2000 square microns area. We have a fixed size die of 25,000 square microns, so plenty of room. Expected Behavior Flow should succceed Environment report

Kernel: Linux v5.15.0-69-generic
Distribution: ubuntu 20.04
Python: v3.8.10 (OK)
Container Engine: docker v20.10.7 (OK)
OpenLane Git Version: a35b64aa200c91e9eb7dde56db787d6b4c0ea12a
pip: INSTALLED
python-venv: INSTALLED
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PDK Version Verification Status: OK
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Git Log (Last 3 Commits)

a35b64a 2023-02-22T11:46:16+02:00 Checkers updates (#1665) - Kareem Farid -  (grafted, HEAD, tag: 2023.02.23)
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Git Remotes

origin  <https://github.com/The-OpenROAD-Project/OpenLane> (fetch)
origin  <https://github.com/The-OpenROAD-Project/OpenLane> (push)

Reproduction material issue_reproducible.tar.gz Relevant log output

[STEP 7]                                                                                       
[INFO]: Running Global Placement (log: ../work/runs/wokwi/logs/placement/7-global.log)...                                                                                                     
[ERROR]: during executing openroad script /openlane/scripts/openroad/gpl.tcl                   
[ERROR]: Log: ../work/runs/wokwi/logs/placement/7-global.log                                                                                                                                  
[ERROR]: Last 10 lines:                                                                                                                                                                       
[NesterovSolve] Iter: 630 overflow: 0.262545 HPWL: 5322542                                     
[NesterovSolve] Iter: 640 overflow: 0.249751 HPWL: 5560596                                     
[NesterovSolve] Iter: 650 overflow: 0.202928 HPWL: 5792007                                     
[NesterovSolve] Iter: 660 overflow: 0.176583 HPWL: 6933765                                     
[NesterovSolve] Iter: 670 overflow: 0.224019 HPWL: 6980485                                                                                                                                    
[NesterovSolve] Iter: 680 overflow: 0.192639 HPWL: 8696204                                     
[NesterovSolve] Iter: 690 overflow: 0.164443 HPWL: 11194311                                                                                                                                   
[ERROR GPL-0307] RePlAce divergence detected. Re-run with a smaller max_phi_cof value.                                                                                                        
Error: gpl.tcl, 69 GPL-0307                                                                    
child process exited abnormally                                                                                                                                                               
                                                                                               
[ERROR]: Creating issue reproducible...                                                        
[INFO]: Saving runtime environment...                                                          
OpenLane TCL Issue Packager                                                                                                                                                                   
                                                                                                                                                                                              
EFABLESS CORPORATION AND ALL AUTHORS OF THE OPENLANE PROJECT SHALL NOT BE HELD                                                                                                                
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THIS SCRIPT. THIS SCRIPT IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR                                                                                                               
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BY USING THIS SCRIPT, YOU ACKNOWLEDGE THAT YOU FULLY UNDERSTAND THIS DISCLAIMER                                                                                                               
AND ALL IT ENTAILS.                                                                                                                                                                           
                                                                                                                                                                                              
Parsing config file(s)…                                                                                                                                                                       
Setting up /work/runs/wokwi/issue_reproducible…                                                                                                                                               
Done.

The-OpenROAD-Project/OpenLane