https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82895
Harald Anlauf <anlauf at gmx dot de> changed:
What |Removed |Added
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CC| |anlauf at gmx dot de
--- Comment #3 from Harald Anlauf <anlauf at gmx dot de> ---
(In reply to Arjen Markus from comment #2)
> Clear, so the workaround I found actually constitutes the proper method of
> doing this?
Well, Jakub explained the main issue, but there are more problems
with your code:
- loop_body accesses the host-associated, non-threadprivate variables q,
x, and id, and you get data races
- it does not make sense that q appears in the omp private declaration,
try to make it a local variable in loop_body
- the I/O (write) is not thread-safe
If possible, try to make the subroutine thread-safe, do not access variables
by host association unless properly annotated.
Hint: use valgrind or some other thread-checker.
