Resolution of the System_Clock(TICKS,RATE,MAX) intrinsic degraded from about
3.6 MHz to 1,000 Hz when I upgraded from g77 to gfortran (for Windows).
There is a computer clock that I have accessed in Visual Basic that represents
elapsed time since my computer was turned on, returned as an integer*8
quantity, which operates at the higher frequency.
It should be possible for you to offer something similar by re-writing
System_Clock(TICKS,RATE,MAX) to operate at the higher frequency (as it was in
g77) and return TICKS as an integer*8.
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Summary: System_Clock
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: DavidLNewton at yahoo dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37832