How would you make datacopy faster in a calc?

Question

I have a calc that looks like this and it's running quite slow because of size of data.
FIX (Scenario, Version, Product)
DATACOPY Salary>Year to Salary_Copy->Year;
DATACOPY Marketing->Year to Marketing_Copy->Year;
DATACOPY Training->Year to Training_Copy->Year;
ENDFIX
- Salary, Marketing and Training are from the Account dimension (dense). The Salary_Copy etc are also in the same Account dimension in a different tree.
- Scenario, Version and Product are Sparse.
- Year is dense
Before looking to tune other things like hardware, I wonder if I could write the script any better. For example, see below... But my question is whether DATACOPY or direct is faster? Second is whether I should put "Year" as part of the FIX or should I be using cross-dimensional operators instead?
FIX (Scenario, Version, Product, Year)
Salary = Salary_Copy;
Marketing = Marketing_Copy;
Training = Training_Copy
ENDFIX
Thanks for any help in advance.
Edited by: user634643 on Aug 4, 2009 5:39 PM

Answer 1

GlennS_2 wrote:
First, in your fix are you fixing on the dimension names or actual members. For example fixing on the entire product dimension will be slow, fixing on levmbrs(product,0) would be much quicker.
I actually like the second method you describe better than the first. It is even better if you wrap them in a block statement Shown below, so only one pass is done through the database.
FIX (Scenario, Version, Product, Year)
(Salary = Salary_Copy;
Marketing = Marketing_Copy;
Training = Training_Copy
ENDFIXIf we wrap into one block statement will it affect the Essbase to make use parallel CPU threads in data copy execution?
Thanks!