Design Aggregation Problem

I have some problem. design aggregation cannot be made on several cubes that have a lot of data, and

have a lot of measures and dimension (the number of fields in the table more or

less 150 fields). They return 0% optimization level when we run design

aggregation.

This link have been published a few posts down but I repeat it here again. This is a good guide of how to create good aggregations: http://cwebbbi.spaces.live.com/blog/cns!7B84B0F2C239489A!907.entry

HTH

Thomas Ivarsson