Best practice for making a report of 10,000 to 20,000 rows(OBIEE 10.3.4.1)

My Scenario is like this:*
Hi i have 2 fact tables fact1 and fact 2 and four dimension tables D1,D2,D3 ,D4 & D1.1 ,D1.2 the relations in the data model is like this :
NOTE: D1.1 and D1.2 are derived from D1 So D1 might be snow Flake.
[( D1.. 1:M..> Fact 1 , D1.. 1:M..> Fact 2 ), (D2.. 1:M..> Fact 1 , D2.. 1:M..> Fact 2 ), ( D3.. 1: M.> Fact 1 , D3.. 1:M..> Fact 2 ),( D4.. 1:M..> Fact 1 , D4 ... 1:M..> Fact 2 )]
Now from D1 there is a child level like this: [D1 --(1:M)..> D1.1 and from D1.1.. 1:M..> D1.2.. 1:M..> D4]
Please help me in modeling these for making a report of 10,000 rows and also let me know for which tables do i need to enable cache?
PS: There shouldn't be performance issue so please help me in modeling this.
Thanks in Advance for the Experts who are helping me for a while.

Shudn't be much problem with just these many rows...
Model something like this only Re: URGENT MODELING SNOW FLAKE SCHEMA
There are various ways of handling performance issues if any in OBIEE.
Go for caching strategy for complete warehouse. Make sure to purge it after every data load..If you have aggr calculations at higher level then you can also go for aggregated tables in OBIEE for better performance.
http://www.rittmanmead.com/2007/10/using-the-obiee-aggregate-persistence-wizard/
Hope this is clear...Go ahead with actual implementation and lets us know incase you encounter any major issues.
Cheers

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