For example when launching raytracing in non-sequential mode.
Here is how to do the same thing from within a ZPL macro:
!through the system properties, code 901:
SYSP 901, 1
!measure time
TIMER
!raytrace
NSTR 1, 0, 0, 0, 0, 1, 0
PRINT "Elapsed time:", ETIM(), "Seconds"
!number of cores
print SYPR(901)
SYSP 901, 16
TIMER
!raytrace
NSTR 1, 0, 0, 0, 0, 1, 0
PRINT "Elapsed time:", ETIM(), "Seconds"
print SYPR(901)
Here is the text output: