The-OpenROAD-Project/OpenROAD

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OpenROAD's unified application implementing an RTL-to-GDS Flow. Documentation at https://openroad.readthedocs.io/en/latest/

Stars: 3.1k
Forks: 1k
Open beginner issues: 0
Indexed issues: 91
Avg merge: 2d 23h
Merged PRs (30d): 136

Dominant language: Verilog
License: BSD-3-Clause
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue help wanted

Beginner friendly Everything

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91 open issues indexed

global_route: is "this cannot route, and here is why" worth a check before the maze iterations? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

The-OpenROAD-Project/OpenROAD#11452 · Opened Sep 19, 2026
Last error message is displayed after a CTRL-C when the openroad command is piped Open

The-OpenROAD-Project/OpenROAD#11430 · 1 assignee · Opened Sep 16, 2026
drt: -no-tests configure fails — src/drt/test references build_and_test, a target that only exists when ENABLE_TESTS=ON Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

The-OpenROAD-Project/OpenROAD#11427 · 3 comments · Opened Sep 16, 2026
web: Macro name not visible when instances blockages turned on Open

web

The-OpenROAD-Project/OpenROAD#11425 · 1 assignee · Opened Sep 16, 2026
syn: crash during elaboration due to unimplemented feature Open

syn

The-OpenROAD-Project/OpenROAD#11415 · 7 comments · 1 assignee · Opened Sep 15, 2026
web: gui cannot be open if firefox is already running in another host Open

web

The-OpenROAD-Project/OpenROAD#11389 · 2 comments · 1 assignee · Opened Sep 11, 2026
Feature request: make write_macro_placement a complete, replayable record of macro placement Open

mpl

The-OpenROAD-Project/OpenROAD#11386 · 19 comments · 1 assignee · Opened Sep 10, 2026
gpl: Wrong buffer placement during timing-driven GPL Open

gpl

The-OpenROAD-Project/OpenROAD#11385 · 6 comments · 1 assignee · Opened Sep 10, 2026
fix pr-merge relitegation papercuts Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

The-OpenROAD-Project/OpenROAD#11379 · Opened Sep 10, 2026
Incremental global placement needs to be timing aware Open

gpl

The-OpenROAD-Project/OpenROAD#11358 · 1 comment · 1 assignee · Opened Sep 8, 2026
grt: resistance-aware wire and via costs use different references (and a set_layer_rc doc gap) Open

The-OpenROAD-Project/OpenROAD#11350 · 2 comments · 1 assignee · Opened Sep 7, 2026
web: Rendering and navigation are glitchy Open

web

The-OpenROAD-Project/OpenROAD#11340 · 1 comment · 1 assignee · Opened Sep 4, 2026
Web GUI layout viewer doesn't reflect a flipped chiplet correctly Open

web

The-OpenROAD-Project/OpenROAD#11329 · 1 assignee · Opened Sep 3, 2026
dpl: checkOneSiteGap is implemented twice and the two disagree at the core edge Open

dpl

The-OpenROAD-Project/OpenROAD#11324 · 3 comments · 1 assignee · Opened Sep 3, 2026
pad: rdl_route gives a different result after write_db/read_db — is assign_io_bump's assignment meant to be session state? Open

pad

The-OpenROAD-Project/OpenROAD#11297 · 1 comment · 1 assignee · Opened Sep 1, 2026
Feature request: POLA — UTF-8 throughout, and a locale-proof environment Open

bazel

Difficulty 5/5 Over a week Newbie friendliness 35/100

The-OpenROAD-Project/OpenROAD#11293 · 5 comments · Opened Sep 1, 2026
Convert high-churn .ok/.defok golden tests to intent-based assertions Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 45/100

The-OpenROAD-Project/OpenROAD#11281 · 5 comments · Opened Aug 31, 2026
mpl: all-fixed macros skip temporary std-cell placement, so injected placements diverge from generating runs Open

mpl

The-OpenROAD-Project/OpenROAD#11279 · 14 comments · 1 assignee · Opened Aug 31, 2026
mpl: -write_macro_placement output rejected by place_macro (snap residue past core, MPL-0034) Open

mpl

The-OpenROAD-Project/OpenROAD#11278 · 1 comment · 1 assignee · Opened Aug 31, 2026
mpl: rtl_macro_placer segfaults when invoked a second time in the same process Open

mpl

The-OpenROAD-Project/OpenROAD#11277 · 1 comment · 1 assignee · Opened Aug 31, 2026
CTS only builds the clock tree of the *current* mode Open

cts

The-OpenROAD-Project/OpenROAD#11273 · 1 assignee · Opened Aug 30, 2026
RCX-0114: driver pin not bound when the route only touches it, leaving a headless path Open

rcx

The-OpenROAD-Project/OpenROAD#11272 · 1 assignee · Opened Aug 30, 2026
RCX-0111: `has a loop at ... , on bterm` reported on a net with no loop Open

rcx

The-OpenROAD-Project/OpenROAD#11271 · 1 assignee · Opened Aug 30, 2026
Fixed Ram Generation. Open

waiting on op

Difficulty 5/5 Over a week Newbie friendliness 25/100

The-OpenROAD-Project/OpenROAD#11265 · 2 comments · Opened Aug 29, 2026
mpl: should updateChildrenRealLocation shift IO clusters, whose positions are already absolute? Open

mpl

The-OpenROAD-Project/OpenROAD#11247 · 1 assignee · Opened Aug 26, 2026
mpl: reportLocations prints "invalid format specifier" instead of macro locations Open

mpl

The-OpenROAD-Project/OpenROAD#11241 · 1 comment · 1 assignee · Opened Aug 26, 2026
gui: Free ruler only works in X Open

gui

The-OpenROAD-Project/OpenROAD#11222 · 1 assignee · Opened Aug 24, 2026
`Resizer::canRemoveBuffer` mutates `dont_touch` on a query it answers "no" to Open

rsz

The-OpenROAD-Project/OpenROAD#11188 · 1 assignee · Opened Aug 19, 2026
Signal 11 Segfault in sta::Sta::delayCalcPreamble() during stage 2 floorplan final metrics Open

The-OpenROAD-Project/OpenROAD#11171 · 4 comments · 1 assignee · Opened Aug 18, 2026
[Security] Fix of vulnerabilities similar to issue #11065 Open

web

The-OpenROAD-Project/OpenROAD#11167 · 1 comment · 1 assignee · Opened Aug 17, 2026
Document the non-local invariants in code: pdn ordering and obstruction rules, and the same pattern in tap and ant Open

pdn

The-OpenROAD-Project/OpenROAD#11159 · 2 comments · 1 assignee · Opened Aug 16, 2026
DRT: large runtime due to multiple repair_antennas iterations Open

drt waiting on op

The-OpenROAD-Project/OpenROAD#11140 · 3 comments · 1 assignee · Opened Aug 13, 2026
gpl: top-level region limitation Open

gpl

The-OpenROAD-Project/OpenROAD#11128 · 3 comments · 2 assignees · Opened Aug 12, 2026
web: Attempt to load scripts over unsafe http Open

web

The-OpenROAD-Project/OpenROAD#11065 · 2 comments · 1 assignee · Opened Aug 5, 2026
mpl: update halo/channel naming usage to improve clarity Open

mpl

The-OpenROAD-Project/OpenROAD#11062 · 1 reaction · 1 assignee · Opened Aug 4, 2026
`diff_spef` cannot produce its documented output, and `calibrate_base_corner` is dropped Open

rcx

The-OpenROAD-Project/OpenROAD#11050 · 3 comments · 1 assignee · Opened Aug 1, 2026
Feature Request: 3D Viewer support for chiplet inter-die routing, bumps, and TSVs Open

enhancement web

The-OpenROAD-Project/OpenROAD#11048 · 1 assignee · Opened Aug 1, 2026
lefout does not write OBS SPACING / DESIGNRULEWIDTH modifiers Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

The-OpenROAD-Project/OpenROAD#11027 · Opened Jul 29, 2026
OBS POLYGON geometry drops LEF SPACING modifier Open

Difficulty 3/5 1-2 days Newbie friendliness 74/100

The-OpenROAD-Project/OpenROAD#11026 · 1 comment · Opened Jul 29, 2026
sv_elaborate crashes with SIGSEGV Open

syn

The-OpenROAD-Project/OpenROAD#11024 · 1 assignee · Opened Jul 29, 2026
Journaling/Undo for inter-chip parasitics Open

odb

The-OpenROAD-Project/OpenROAD#11022 · 1 assignee · Opened Jul 29, 2026
RCX logs should be enhanced Open

rcx

The-OpenROAD-Project/OpenROAD#11016 · 1 assignee · Opened Jul 28, 2026
SYN: asap7/mock-alu fails when reading sdc Open

syn

The-OpenROAD-Project/OpenROAD#11003 · 1 assignee · Opened Jul 27, 2026
SYN: Elaboration failed Open

syn

The-OpenROAD-Project/OpenROAD#11002 · 1 assignee · Opened Jul 27, 2026
PDN generator may not handle dual-layer power rails in standard cell pins Open

pdn

The-OpenROAD-Project/OpenROAD#10955 · 26 comments · 1 assignee · Opened Jul 20, 2026
[DPL-0701] NegotiationLegalizer did not fully converge on ispd15 mgc_superblue12 Open

dpl

The-OpenROAD-Project/OpenROAD#10951 · 5 comments · 1 assignee · Opened Jul 19, 2026
Issue on page /main/src/gui/README.html Open

Stale

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

The-OpenROAD-Project/OpenROAD#10938 · 3 comments · Opened Jul 17, 2026
DRT: PA via candidates importance cohesion Open

drt

The-OpenROAD-Project/OpenROAD#10937 · 1 comment · 1 assignee · Opened Jul 17, 2026
TritonCTS: macro insertion-delay balancing skews launch-dominated macros the wrong way; propose timing-driven skew scheduling Open

cts

The-OpenROAD-Project/OpenROAD#10901 · 4 comments · 1 assignee · Opened Jul 13, 2026
repair_timing: add `-effort explore | tapeout` to communicate intent w.r.t. repair_timing Open

rsz Stale

The-OpenROAD-Project/OpenROAD#10900 · 21 comments · 1 assignee · Opened Jul 13, 2026

The-OpenROAD-Project/OpenROAD

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