#1090 MPW-6 Openlane flow fails with [ERROR GRT-0118] Routing congestion too high - Same design routed sucessfully in MPW5 tool set New issue created by dineshannayya Description Latest version (MPW-6) of Openlane flow fails with [ERROR GRT-0118] Routing congestion too high ERROR - Same design was previously successfully routed using MPW-5 tools Environment This failure observed with latest version of Openlane : commit 8120faaedf752714e65fb7ff91993a8e6630a664 (HEAD -> master, tag: 2022.05.12_01.39.47, origin/master, origin/HEAD) Author: Mohamed Gaber <me@donn.website> Date: Wed May 11 194222 2022 +0200 Make

RUN_SPEF_EXTRACTION

skip STA entirely, remove pandas (#1089) ~

RUN_MAGIC

check moved to flow.tcl ~

RUN_SPEF_EXTRACTION

now skips STA entirely - Remove pandas (it's overkill for what we need + greatly inflates install times) Latest Openroad version: commit 6d0f5c0116ba235c93c181dfe80246ee5b142bd4 (HEAD -> master, origin/master, origin/HEAD) Merge: 2eebc2524 e439643eb Author: arlpetergadfort <46405338+arlpetergadfort@users.noreply.github.com> Date: Wed May 11 132556 2022 -0400 Merge pull request #1844 from The-OpenROAD-Project-staging/gui-speedup gui: speedup when handling callbacks Reproduction Material Attach tarball containing the relevant design share by the openlane flow. openroad_issue_reproducible.tar.gz Expected behavior Flow should route design Logs INFO]: Running Global Routing... [ERROR]: during executing openroad script /openlane/scripts/openroad/groute.tcl [ERROR]: Exit code: 1 [ERROR]: full log: uart_i2cm_usb_spi_top/runs/uart_i2cm_usb_spi_top/logs/routing/21-global.log [ERROR]: Last 10 lines: [INFO GRT-0101] Running extra iterations to remove overflow. [INFO GRT-0103] Extra Run for hard benchmark. [INFO GRT-0197] Via related to pin nodes: 85059 [INFO GRT-0198] Via related Steiner nodes: 2112 [INFO GRT-0199] Via filling finished. [INFO GRT-0111] Final number of vias: 108827 [INFO GRT-0112] Final usage 3D: 457903 [ERROR GRT-0118] Routing congestion too high. Error: groute.tcl, 55 GRT-0118 child process exited abnormally [INFO]: Saving runtime environment... [INFO]: Creating reproducible... or_issue.py OpenROAD Issue Packager EFABLESS CORPORATION AND ALL AUTHORS OF THE OPENLANE PROJECT SHALL NOT BE HELD LIABLE FOR ANY LEAKS THAT MAY OCCUR TO ANY PROPRIETARY DATA AS A RESULT OF USING THIS SCRIPT. THIS SCRIPT IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND. BY USING THIS SCRIPT, YOU ACKNOWLEDGE THAT YOU FULLY UNDERSTAND THIS DISCLAIMER AND ALL IT ENTAILS. The-OpenROAD-Project/OpenLane