To create a test environment, create a simulated cluster on a single node with all instances running on that node.
SAP recommends that you configure each instance on a different node, that is, one node for each instance. However, for a test environment, you can create a simulated cluster on a single node with all instances running on that node. For best performance, make sure the number of engines in all instances running on a single node does not exceed the number of CPUs on that node.
The default setting for the runnable process search count parameter is 3. SAP recommends that you use this default setting, which can be changed using the sp_configure stored procedure.