Skip to content

Shrink the die area asap7/swerv_wrapper#3928

Merged
eder-matheus merged 3 commits intoThe-OpenROAD-Project:masterfrom
The-OpenROAD-Project-staging:test-jorge-design-owner
Mar 12, 2026
Merged

Shrink the die area asap7/swerv_wrapper#3928
eder-matheus merged 3 commits intoThe-OpenROAD-Project:masterfrom
The-OpenROAD-Project-staging:test-jorge-design-owner

Conversation

@openroad-ci
Copy link
Collaborator

fix the issue: #3612

@maliberty
Copy link
Member

Please merge master to your PR and make sure things still pass (or update). You are up next for metrics merge.

…ON=25, PLACE_DENSITY=0.70, clk_period=1800)

Signed-off-by: Jorge Ferreira <jorge.ferreira@precisioninno.com>
@openroad-ci openroad-ci force-pushed the test-jorge-design-owner branch from 0a61cfb to f83ab7c Compare March 11, 2026 16:15
export CORE_AREA = 5 5 545 595
export CORE_UTILIZATION = 30
# export DIE_AREA = 0 0 350 400
# export CORE_AREA = 5 5 345 395
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Don't need to leave the commented lines. Please remove, here and below.

set clk_name core_clock
set clk_port_name clk
set clk_period 1600
set clk_period 1800
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

We are actually aiming to reduce the clock period, in a way that our optimization steps will have more room for improvement. If the design already has zero/positive WNS/TNS, you can reduce it to have more violations.

…ilization

Signed-off-by: Jorge Ferreira <jorge.ferreira@precisioninno.com>
Signed-off-by: Jorge Ferreira <jorge.ferreira@precisioninno.com>
@jferreiraOpenRoad
Copy link
Contributor

I set CORE_UTILIZATION to 30% to accommodate macro blocks and tested variations for PLACE_DENSITY_LB_ADDON. I kept the baseline at 0.20 while exploring 0.30 and 0.40 to improve slack.

0.20: WNS -182.79 | TNS -28.9k

0.30: WNS -179.62 | TNS -33.8k (Improved WNS, but TNS worsened)

0.40: WNS -234.77 | TNS -45.4k (Significant degradation)

@jferreiraOpenRoad jferreiraOpenRoad requested review from jferreiraOpenRoad and removed request for jferreiraOpenRoad March 12, 2026 15:16
@eder-matheus eder-matheus merged commit 21ae07f into The-OpenROAD-Project:master Mar 12, 2026
8 checks passed
@openroad-ci openroad-ci deleted the test-jorge-design-owner branch March 12, 2026 19:46
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants