[Bug libgomp/39217] g++4.3.3 OpenMP (aka omp) for loop hangs

[Bug libgomp/39217] g++4.3.3 OpenMP (aka omp) for loop hangs

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39217

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |INVALID

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-01-08 21:33:08 UTC ---
No testcase in over 2 years so closing as invalid.

[Bug libgomp/39217] g++4.3.3 OpenMP (aka omp) for loop hangs

[aleaverfay at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39217

--- Comment #3 from Andrew Leaver-Fay <aleaverfay at gmail dot com> 2012-01-09 04:12:16 UTC ---
Hi,

I'm working with a large program and I am not sure if there are global
variables that are being read without my knowledge.  I knew to look
for global variables, but, not finding any, I didn't know what else I
could do.  I was hoping for something along the lines of "oh, pop open
your program in gdb and type X and then when the craziness appears,
you can check the stacks of the miscreant threads" or "start dumping X
messages to the screen at points Y and Z and you should see one thread
fail."

Debugging multithreaded programs is tricky.

Sadly, I never got this program to work with openmp.  I've given up.
Thank you for at least getting back to me.

Best,
Andrew

On Sun, Jan 8, 2012 at 4:33 PM, pinskia at gcc dot gnu.org
<gcc-bugzilla@gcc.gnu.org> wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39217
>
> Andrew Pinski <pinskia at gcc dot gnu.org> changed:
>
>           What    |Removed                     |Added
> ----------------------------------------------------------------------------
>             Status|WAITING                     |RESOLVED
>         Resolution|                            |INVALID
>
> --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-01-08 21:33:08 UTC ---
> No testcase in over 2 years so closing as invalid.
>
> --
> Configure bugmail: http://gcc.gnu.org/bugzilla/userprefs.cgi?tab=email
> ------- You are receiving this mail because: -------
> You reported the bug.

[Bug libgomp/39217] g++4.3.3 OpenMP (aka omp) for loop hangs

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2009-02-18 21:55 -------
We need a preprocessed source or at least a self contained example.  It might
be the case you don't use the correct barriers or atomics when doing updates of
a global variable.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
            Summary|g++4.3.3 OpenMP (aka omp)   |g++4.3.3 OpenMP (aka omp)
                   |for loop hangs              |for loop hangs


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39217