ASO Cubes Use all available Memory on Essbase Server

Hello,

We are new to Essbase and curently have 4 ASO cubes under development in our test environment.  Essbase Server (11.1.2.1) is on a Linux server.  Our server administrator is monitoring the memory on this server and there is 32GB available.  Multiple times, we have occupied all the available memory on this server - which is concerning. 

So my question is, how can we get a handle on this?  How do we 'right size' our application properties to not cause our server to run out of the memory?  I have found this link that talks about the 'Pending Cache Size' limit....is that a setting that would cause the memory to be occupied?