VMS Help STOP, /CPU, Examples  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    1.$ STOP/CPU

      The STOP/CPU command in this example selects a processor and
      removes it from the multiprocessing system's active set.

    2.$ STOP/CPU 4,7

      The STOP/CPU command in this example selects the processors
      with CPU IDs 4 and 7 and removes them from the multiprocessing
      system's active set.

    3.$ STOP/CPU/OVERRIDE_CHECKS 8

      The STOP/CPU/OVERRIDE_CHECKS command in this example
      unconditionally stops the processor with the CPU ID of 8 and
      removes it from active participation in the multiprocessing
      system.

    4.$ STOP/CPU/ALL

      The STOP/CPU/ALL command in this example stops all eligible
      secondary processors in the active set and removes them from
      the multiprocessing system.