Design partition and memory usage

Obviously the easiest thing would be to see your design. but ...

1 - Could you post all of the compilation messages in a text file? Try looking through the synthesis and fitter warnings to see if there is some other clue.

2 - In your fitter report you can look at the RAM usage summary which will tell you which RAM blocks are being used by which design entities. If your two design entities are using the same RAM block then you know they are being shared. Because MRAM has two independent ports, it can be shared by two completely different pieces of code.

3 - What version of Quartus are you using? Supposedly some improvements were mead to design partitioning in 8.0.

Jake