Rocket Mini to GDSII failed at step 15

[Ryabkomv]

Description

I have successfully generated GDSII file with open lane for picorv32 with configuration using docker container. However when I try to get GDSII for Rocket chip with Tiny configuration I got error at step 15.

[STEP 15]
[INFO]: Running Global Routing Resizer Timing Optimizations...
[ERROR]: during executing openroad script /openlane/scripts/openroad/resizer_routing_timing.tcl
[ERROR]: Exit code: 1
[ERROR]: full log: designs/ExampleRocketSystem/runs/RUN_2022.06.03_12.54.37/logs/routing/15-resizer.log
[ERROR]: Last 10 lines:
met2       Vertical      6182445       4937214          20.14%
met3       Horizontal    4121630       3293440          20.09%
met4       Vertical      2472978       1650582          33.26%
met5       Horizontal     824326        410880          50.16%
---------------------------------------------------------------

[INFO GRT-0101] Running extra iterations to remove overflow.
[ERROR GRT-0169] Net _0432988_: Invalid index for position (2590950, 3605250). Net degree: 6.
Error: resizer_routing_timing.tcl, 53 GRT-0169
child process exited abnormally

Googling I came to the following config.tcl

set ::env(DESIGN_NAME) ExampleRocketSystem
set ::env(FP_CORE_UTIL) 30

set ::env(CELL_PAD) 2

set ::env(PL_BASIC_PLACEMENT) 0
set ::env(PL_TARGET_DENSITY) 0.3

set ::env(GLB_RT_ADJUSTMENT) 0.2

set ::env(PL_ROUTABILITY_DRIVEN) 1

# Change if needed
set ::env(VERILOG_FILES) [glob $::env(DESIGN_DIR)/src/*.v]

# Fill this
set ::env(CLOCK_PERIOD) "10.0"
set ::env(CLOCK_PORT) "clk"

set filename $::env(DESIGN_DIR)/$::env(PDK)_$::env(STD_CELL_LIBRARY)_config.tcl
if { [file exists $filename] == 1} {
        source $filename
}

Environment

docker --version
Docker version 20.10.16, build aa7e414


Please run the following set of commands in the OpenLane folder:

python3 ./env.py issue-survey
Kernel: Linux v5.4.0-113-generic
Distribution: ubuntu 20.04
Python: v3.8.10 (OK)
Container Engine: UNKNOWN vUNKNOWN (UNSUPPORTED)
OpenLane Git Version: 2653e6e4d69c8a8270c494e2ce61cbfd151fae38
pip: INSTALLED
pip:venv: INSTALLED
---
PDK Version Verification Status: OK
---
Git Log (Last 3 Commits)

2653e6e 2022-05-25T19:27:29+02:00 Synthesis Parameters, More Report Metrics (#1105) - Arya Reais-Parsi -  (HEAD -> master, tag: 2022.05.26_01.40.55, origin/master, origin/HEAD)
4298bf2 2022-05-25T17:42:21+02:00 Remove `endcap_cpp` option from `tapcell` (#1085) - Anton Blanchard -  ()
601eede 2022-05-21T18:47:55+02:00 Support Multi-Arch Docker Builds (#1075) - Mohamed Gaber -  (tag: 2022.05.22_02.07.28)

Reproduction Material

• Upload a tarball containing the relevant design. the used command

./flow.tcl -design ExampleRocketSystem

Expected behavior

Successful GDSII generation

src.tar.gz

openroad_issue_reproducible