On Tue, Feb 23, 2021 at 09:43:51PM +0000, Kwok Cheung Yeung wrote:
> On 19/02/2021 7:12 pm, Kwok Cheung Yeung wrote:
> > I have included the current state of my patch. All task-detach-* tests
> > pass when executed without offloading or with offloading to GCN, but
> > with offloading to Nvidia, task-detach-6.* hangs consistently but
> > everything else passes (probably because of the missing
> > gomp_team_barrier_done?).
> >
>
> It looks like the hang has nothing to do with the detach patch - this hangs
> consistently for me when offloaded to NVPTX:
>
> #include <omp.h>
>
> int main (void)
> {
> #pragma omp target
> #pragma omp parallel
> #pragma omp task
> ;
> }
>
> This doesn't hang when offloaded to GCN or the host device, or if
> num_threads(1) is specified on the omp parallel.
Then it can be solved separately, I'll try to have a look if I see something
bad from the dumps, but I admit I don't have much experience with debugging
NVPTX offloaded code...
Jakub
