Tuning Essbase Calc Scripts

Hi,
I am looking for some guidance on tuning a calculation script.The business rule perform forecasting for two years based on the historical data (upto 5 years). The rule performs well when it is executed against a single department, single activity and single project.However when I try to run the admin rule which performs the same function but for all departments, all classes and all projects. it never completes.
Your feedback is really appreciated.
Sincerely,
JJ
Note in this example:
Activity and Project are dimension.
Total# of Departments = 7000 members
Activity = 100 members
Project = 100 stored members
Accounts = 350 stored members

Hello JJ,
for tuning an essbase database a consultant may use a day or more. Not something to be handled properly in a forum.
What we can do here is to give you some guidelines.
Calculate only what is necessary. Data which have been calculated and are not changed, do not need to be recalculated. Data which will be modified in a next step, should not be aggregated and then be aggregated again.
When you calculate, much is related to to the block size and how fast Essbase can get the blocks into memory and back to disk. So optimize the blocks (dynamic calc on the parent members, label only on where no data storage should take place).
Then optimize the calculation. Work with parallel calculation. And test, test, and test.
Regards,
Philip Hulsebosch

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Some posts on the subject
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Business rule
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I have essbase 9.3 running on Sun solaris 4 CPU, 16 GB server. The calc script "calc all" takes ~3 hrs to complete.
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/ESS_LOCALE English_UnitedStates.US-ASCII@Binary
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Moe,
I'm guessing you inherited this thing, else you would know why the cache settings are what they are, but here are some thoughts:
Caches:
3) Datafile cache setting is 1.5 GB
4) Datafile cache current value is 0 (?? not sure why??)You're running the database in Buffered I/O, so the data file cache is ignored.
1) Index cache size is 1 GB for this DB
2) Index cache current value is 1gb You have consumed all of the cache -- I'm a little confused, as you state your .ind file to be 700 megabytes -- generally the index cache consumption doesn't go beyond the .ind file size. When you look at your hit ratio statistics in EAS, does it show a 1 against the index cache? If yes, then you don't need to look any further as that's as good as it's going to get.
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Glenn, thanks - I hadn't thought of that :).
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When the list is 20 counties - variables become 40 :(.
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Edited by: Ankur on Jun 27, 2012 12:53 PM

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http://john-goodwin.blogspot.com/

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you need to bring all data first to the member Employee. It will be loaded on the individual members of Employee. Assuming the accounts dimension is dense (Database > Properties > second tab)
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Philip

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All,
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At the risk of being hit over the head with a stick...
An alternative means of accomplishing this:
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Cheers
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http://john-goodwin.blogspot.com/

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Regards
Celvin
http://www.orahyplabs.com
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Tuning Essbase Calc Scripts

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