Calculation in Esbase System 9 slower than in 6.5

Question

Hello,
I, ve the following problem I'll try to summarize:
We’ve migrated a database from Essbase 6.5 to System 9. The main calculation in the database consists in several FIX statements that are faster in the new version (according to the log), except one, that lasts 5 minutes in 6.5 and almost an hour in System 9.
This is the FIX:
FIX(@LEVMBRS (Products,0), @UDA("Business Unit", "ELIM"), &Current_Month, "Actual", &Current_Year, Eliminations, global)
Sales = @SUM( @UDA( "Business Unit", @NAME( @CURRMBR("Business Unit"))));
ENDFIX
I’ll try to explain the meaning of this FIX: For some members in the Business Unit dimension (Marked with the UDA “ELIM”) the sales are calculated as the sum of the sales of those Business Units marked with an UDA that is the same name as the Business Unit that it’s being calculated (@CURRMBR).
As an additional information, it’s interesting because the fix syntax is reported as “Invalid parameter type” by the syntax analyzer of the 6.5, but the calculation works correctly (in only five minutes). In System 9, on the contrary, the syntax is reported as correct, but the FIX lasts far more than in 6.5 (as I said, almost an hour).
Does anyone have any idea of what could be happenning? Do you know any alternate syntax for the sentence?
Thanks in advance for your help.

Answer 1

I experienced similar unexplained calc degradation going from essbase 6.5.1 to 7.1.5.
I had a calc statement similar to the one you are seeing degration on,
"Regular Hours" = "Dept. Minimum Hours Input"->@MEMBER(@CONCATENATE(@NAME(@ANCEST("Time Periods",4)), " GLOBAL DRIVER"));
I can't remember how I stumbled on this, but I did stumble on to the fact that the newer calc engine wasn't as efficient with resolving these functions. My statement was trying to resolve the "Time Periods" ancestor to it's 4 generation member, and concatenating that with " Gloabal Driver" which is a data input member. Since there are only 13 different "Periods" in my outline it wasn't too difficult for me to replace those functions with an IF statement checking which "Time Period" I was in (example)
If(@IsMbr("P01W1") OR @IsMbr("P01W2") OR @IsMbr("P01W3") Or @IsMbr("P01W4"))
"Regular Hours" = "Dept. Minimum Hours Input"->"Period 01 GLOBAL DRIVER";
ElseIf(@IsMbr("P02W1") OR @IsMbr("P02W2") OR @IsMbr("P02W3") Or @IsMbr("P02W4"))
"Regular Hours" = "Dept. Minimum Hours Input"->"Period 02 GLOBAL DRIVER";
Etc.
It meant a lot more typing, but it took my calc from 20 minutes to 2 minutes.
Hopefully you can do something similar to remove the functions.
Good Luck,
Robert