Answers Database

MAP: The meaning of the Map packing strategy options


Record #2666

Product Family:  Software

Product Line:  Merged Core

Problem Title:
MAP: The meaning of the Map packing strategy options


Problem Description:
Keywords: map, pack, strategy, fit device

Urgency: standard

General description:
This solution clarifies what the 3 packing strategies available
in the M1 Mapper do.


Solution 1:

The three Mapper packing strategy settings control the
packing of unrelated logic into the same CLB.  The settings
are as follows:

1)  Minimum Density

Start packing unrelated logic together in CLBs from the very
beginning of the mapping process.

2)  Fit Device

Start packing unrelated logic together in CLBs once 97% of
the device has been used.

3)  Off

Never pack unrelated logic together in CLBs.




End of Record #2666