Define a yielding user-defined VP class
The VPCLASS configuration parameter creates a yielding user-defined VP by default. You can also use the num option to specify the number of VPs in the yielding user-defined VP class.
The following code fragment defines a yielding user-defined VP
class named newvp with three virtual processors.
VPCLASS newvp,num=3 # Yielding VP class with 3 instances
The C user-defined function, GreaterThanEqual(), in the code fragment in Assign a C UDR to a user-defined VP class, executes in the newvp VP class.