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Shrink the die area asap7/swerv_wrapper #3928

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Shrink the die area asap7/swerv_wrapper #3928

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4 changes: 2 additions & 2 deletions flow/designs/asap7/swerv_wrapper/config.mk
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Expand Up @@ -51,8 +51,8 @@ export SDC_FILE = $(DESIGN_HOME)/$(PLATFORM)/swerv_wrapper/constraint.sdc
export ADDITIONAL_LEFS = $(sort $(wildcard $(DESIGN_HOME)/$(PLATFORM)/swerv_wrapper/lef/*.lef))
export ADDITIONAL_LIBS = $(sort $(wildcard $(DESIGN_HOME)/$(PLATFORM)/swerv_wrapper/lib/*.lib))

export DIE_AREA = 0 0 550 600
export CORE_AREA = 5 5 545 595
export DIE_AREA = 0 0 350 400
export CORE_AREA = 5 5 345 395

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@eder-matheus eder-matheus Feb 26, 2026

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You could try changing these hardcoded numbers to use the CORE_UTILIZATION instead. We're aiming for ~0.7, but it's ok to go down for 0.6 or even 0.5

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@eder-matheus eder-matheus Feb 27, 2026

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Note that after setting a large CORE_UTILIZATION value, the WNS and TNS might reduce, in some cases even become positive. In that case, you want to update the clock period as well.

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@jferreiraOpenRoad jferreiraOpenRoad Feb 27, 2026 •
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I wasn't aware I could update the clock period. Thanks for pointing that out. I'll update it.

export IO_CONSTRAINTS = $(DESIGN_HOME)/$(PLATFORM)/swerv_wrapper/io.tcl
export PLACE_DENSITY_LB_ADDON = 0.20
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