The runtime for PLCIO is sold by CPU license. What is a CPU?
For PLCIO, we define a CPU as an active production computer running PLCIO. If this computer is one small Pentium 3 or a huge four CPU Quad Core Xeon processor box, both are defined as One CPU. If there are two computers are running as a cluster, one CPU license is needed for a failover cluster; two (or more) are needed as a load balanced cluster. The spirit of our CPU license is active production computers.