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cells are not honoring regions even after using setPlaceMode -forceFenceRegion true

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kapil_vlsi1

kapil_vlsi1

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cells are not honoring regions even after using setPlaceMode -forceFenceRegion true in Encounter.

Is there a way in encounter how we can make the tool honor regions. Please help.
 

Hi Kapil,

Did u try , something like this

setPlaceMode -forceFenceRegion true -hardFence true -honorSoftBlockage true
placeDesign
checkPlace
refinePlace -hardFence true
checkPlace


also dont forget to add
setOptMode -honorFence true

sometimes during optimization, if your congestion is high , fences would be ignored. so its better to set it up front in deisgn flow.
 
Its working but the main reason why we are giving is to legalize placement. Still some overlaps in standard cell after refine place and setPlaceMode -forceFenceRegion true -hardFence true -honorSoftBlockage true
or do we have to fix it manually.
 

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