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Altera_Forum
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11 years ago

Cyclone V: 100% of LABs used in report, but not in Chip Planner

Hi I'm making a design in which I'm seeing some strange differences between the compiler report and what it's seen in the Chip Planner: In the Compiler report, the use of LABs reaches a 10...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Hi,

Well, what I'm more concerned about is the use of LABs...

Each LAB contains 10 ALMs, and according to the Chip Planner, about the 25% southern LABs are completely empty (and given that most of the used ones in the center of the layout are just half-used, that 74% of ALMs still seems too much too me)

I still don't see how are the report numbers related to the Chip Planner actual results.