...Memory utilisation in HFM

Since version 11.x, Oracle has released the 64-bit version of HFM. The benefit is that the 64-bit version of HFM can hold more data in memory comparing to the 32-bit version.

Based on Oracle documentation, HFM virtual address space is dictated by the OS. So, if you have an application with large subcubes (large scenarios, dense data, big number of scenario) which struggles in the 32-bit environment,

...Records & Subcubes in HFM

A few years ago, I decided to spend time to understand how HFM calculation engine works with aim to improve the performance of the rules. The first stop was the HFM manual, the basic design considerations and the section that is referring to subcubes to understand the calculation mechanism.