/THREADS_ENABLE

   Kernel threads allow a multithreaded application to have a thread
   executing on every CPU in a multiprocessor system. The /THREADS_
   ENABLE qualifier allows you to turn kernel threads on and off on
   a per-image basis.

   When you specify this qualifier, the OpenVMS linker sets the
   appropriate bits in the dynamic segment (I64) or the image header
   (Alpha and VAX) of the image being linked. These bits control the
   following:

   o  Whether the image is allowed to enter a multiple kernel
      threads environment

   o  Whether the image can receive upcalls from the OpenVMS
      scheduler

   Format

     /THREADS_ENABLE[=(MULTIPLE_KERNEL_THREADS,UPCALLS)]

     /NOTHREADS_ENABLE (default)
 

Additional information available:

Qualifier_Values