Description

   The PSM$PRINT routine must be called exactly once after all user
   routines have been specified to the print symbiont. Each user
   routine is specified to the symbiont in a call to the PSM$REPLACE
   routine.

   The PSM$PRINT routine allows you to specify whether the print
   symbiont is to be single-threaded or multithreaded, and if
   multithreaded, how many streams or threads it can have. In
   addition, this routine allows you to control the maximum size
   of the output buffer.