Ahmed Ghazy07/24/2020, 11:01 AM
. The process of finding the best configuration parameters for a design is systematic that we have it automated (what we call an exploration); please check this for more information on that. You may be interested in seeing the effects of the
parameters, on which you can read here.
Matt Venn07/24/2020, 11:08 AM
Ahmed Ghazy07/24/2020, 11:34 AM
) is used during floorplanning and determines the die area; in case of a logic block, it's basically equal to the
The target placement density (
(total area of logic cells)/(die area)
), which varies from
is used during global placement. Intuitively*, it's a measure of how close the cells are placed to each other, low values meaning further from one another, higher values meaning closer.
is usually a good range to keep cells far enough and allow diode insertion. * The exact equation would be more complex to explain as the placer models cells as electric charges uses the electrostatic equation (here is the paper if you're interested tho!).
Matt Venn07/24/2020, 11:39 AM
Ahmed Ghazy07/24/2020, 11:53 AM
design with very low utilization vs. high utilization:
Matt Venn07/24/2020, 12:14 PM
Ahmed Ghazy07/24/2020, 12:35 PM