You can use profiling to determine the stacking number for your dynamic cluster. The stacking number is the number of cluster instances that are needed to use all the power of a node.
You can determine the stacking number by profiling of your application. If your dynamic cluster is homogeneous, and all of the nodes for the node group have similar power, you need to profile and determine the stacking number on one node only. If your dynamic cluster is deployed to a node group with nodes that are heterogeneous and vary in power, you must profile each node and determine the stacking number for each node.