Error IR Drop in caravel_user_project with an OpenFPGA

[CristopherA96]

Hi,

Description

I have the next issue when running user_project_wrapper process.

I have on each instance of the fpga_top the declaration of vccd1 and vssd1, I consider that connections will be done with the user_project_wrapper, but it is still showing me those errors.

How can I treat those errors?

[STEP 22]
[INFO]: Creating IR Drop Report (log: ../my_path/caravel_user_project/openlane/user_project_wrapper/runs/23_06_19_07_55/logs/signoff/22-irdrop.log)...
[ERROR]: during executing openroad script /openlane/scripts/openroad/irdrop.tcl
[ERROR]: Log: ../my_path/caravel_user_project/openlane/user_project_wrapper/runs/23_06_19_07_55/logs/signoff/22-irdrop.log
[ERROR]: Last 10 lines:
[WARNING PSM-0038] Unconnected PDN node on net vccd1 at location (1582.520um, 2417.880um), layer: 5.
[WARNING PSM-0038] Unconnected PDN node on net vccd1 at location (1582.520um, 2417.880um), layer: 6.
[WARNING PSM-0038] Unconnected PDN node on net vccd1 at location (1582.520um, 2342.880um), layer: 5.
[WARNING PSM-0038] Unconnected PDN node on net vccd1 at location (1582.520um, 2342.880um), layer: 6.
[WARNING PSM-0038] Unconnected PDN node on net vccd1 at location (1582.520um, 2267.880um), layer: 5.
[WARNING PSM-0038] Unconnected PDN node on net vccd1 at location (1582.520um, 2267.880um), layer: 6.
[WARNING PSM-0038] message limit reached, this message will no longer print
[ERROR PSM-0078] IR drop setup failed.  Analysis can't proceed.
Error: irdrop.tcl, 37 PSM-0078
child process exited abnormally

[ERROR]: Creating issue reproducible...

Issue reproducible

This is the generated issue file.

issue_reproducible.zip

Setup

Linux Mint
RAM 32GB

[vijayank88]

It's an issue, not in discussion.
Can you try with latest OpenLane or OpenROAD commit?
Also share pdn stage test case for the same, if issue repeats.

[CristopherA96]

Okay, thanks, let me try it.

[CristopherA96]

@vijayank88, I am working this stage over caravel_user_project, so, I am trying to update openlane inside it.