For situations when the dynamic calculator cache has no more room, the DYNCALCCACHEONLY setting specifies whether or not Hyperion Essbase may perform Dynamic Calc calculations in memory outside the dynamic calculator cache.
DYNCALCCACHEONLY TRUE¦FALSE
| TRUE | Disallows the use of memory outside the dynamic calculator cache. If space for blocks with dynamically calculated members cannot be obtained from the dynamic calculator cache, Hyperion Essbase generates an error message. |
| FALSE | Allows the use of memory outside the dynamic calculator cache, if necessary, for blocks containing dynamically calculated members |
The default value is FALSE.
When no room is available in the dynamic calculator cache, the DYNCALCCACHEWAITFORBLK and DYNCALCCACHECOMPRBLKBUFSIZE configuration settings provide options that could result in Hyperion Essbase using memory outside the dynamic calculator cache to store blocks that contain dynamically calculated members. If you are experiencing a severe memory shortage, you can use the DYNCALCCACHEONLY setting to disallow the use of memory outside the dynamic calculator cache. If DYNCALCCACHEONLY is set to TRUE, instead of using memory outside the dynamic calculator cache, Hyperion Essbase generates the error message, "Allocation outside the dynamic calculator cache is disallowed."
The dynamic calculator cache is a memory buffer that holds data blocks that are expanded to include dynamically calculated members. Hyperion Essbase allocates memory in the dynamic calculator cache to store these blocks during retrievals or calculations that involve dynamically calculated members.
Using the dynamic calculator cache may improve retrieval performance by reducing the number of calls to the operating system to do memory allocations. The size of the improvement depends on your database configuration.
The configuration setting
DYNCALCCACHEONLY TRUE
specifies that the dynamic calculator cache is the only memory area that Hyperion Essbase may use to store blocks that contain dynamically calculated blocks. If a retrieval requires space that is not available in the dynamic calculator cache, the execution of the retrieval is aborted. The user sees an error message that is also posted to the application log.
The default value of this setting is FALSE. Only set this value to TRUE for one or more of the following circumstances:
DYNCALCCACHEMAXSIZE
DYNCALCCACHEWAITFORBLK
DYNCALCCACHEBLKTIMEOUT
DYNCALCCACHECOMPRBLKBUFSIZE
DYNCALCCACHEBLKRELEASE
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