Virtual Hometerm Subsystem (VHS) Manual (H06.03+)

Using VHS
Virtual Hometerm Subsystem (VHS) Manual—429311-001
3-5
VHS Run Syntax
RUN
specifies the TACL RUN command.
VHS
specifies the program file name of the VHS program.
NAME $process-name
specifies the name you are assigning to VHS. Specify $process-name as an
alphanumeric string of one to five characters, the first of which must be a letter.
Examples of VHS process names are $VHS1, $VHS2, or $HOME.
NOWAIT
specifies that TACL does not wait while the program runs. TACL returns a
command input prompt after sending the startup message to the new process. You
should always specify NOWAIT when you run VHS.
run-option
specifies any of the NonStop Kernel run options, separated by commas, valid for
the RUN command in TACL, as described in the TACL Reference Manual. The
following options are of particular importance for this command:
CPU cpu-number
specifies the number of the processor where the primary process of VHS is to
execute. cpu-number is an integer in the range 0 through 15. If you omit this
option, VHS runs in the same processor as TACL. (If the CPU option is omitted
and a $CMON process exists, $CMON might specify a CPU other than the one
in which the current TACL process is running. For more information about
$CMON, see the NonStop Kernel Operating System Programmer’s Guide.)
PRI priority
specifies the run priority of the VHS process. The priority must be an integer in
the range 1 to 199. If you omit this option, VHS runs at a priority of 1 less than
that of the TACL process. If your applications have a high message rate, you
should specify a high priority. (If a $CMON process exists, $CMON might
specify a priority other than 1 less than your TACL process. For more
information about $CMON, see the NonStop Kernel Operating System
Programmer’s Guide.)
Note. VHS is a subtype 30 process and must be named to execute properly. VHS does
not start if it is an unnamed process.