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Difference results when re-run placedesign

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I've got every time a difference result when I ran placedesign (related to congestion) after I've changed some power grid even though the same placementguides have been used.
My question is how can I specify the startpoint  (sheetfactor ??? ) so that the placedesign should start at the same point.

Thanks.


Originally posted in cdnusers.org by DN
Parents

  • Hi I got you point what you mean in your mail,
    I suggest you to add "Fence" option in your design instead of guide-OK
    (The module is a hard constraint in the core design area.)
    Note: Fence groups can potentially cause overlaps that cannot be corrected because
    the Encounter software cannot move the cells out of the group.
    So take care of each effective module target utilization (TU=%) value to represent their physical design .
    Not an AE .


    Originally posted in cdnusers.org by mohanch007
Reply

  • Hi I got you point what you mean in your mail,
    I suggest you to add "Fence" option in your design instead of guide-OK
    (The module is a hard constraint in the core design area.)
    Note: Fence groups can potentially cause overlaps that cannot be corrected because
    the Encounter software cannot move the cells out of the group.
    So take care of each effective module target utilization (TU=%) value to represent their physical design .
    Not an AE .


    Originally posted in cdnusers.org by mohanch007
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