[Openmp-commits] [PATCH] D62393: [OPENMP][NVPTX]Mark parallel level counter as volatile.

[Joachim Protze via Phabricator via Openmp-commits]

protze.joachim added a comment.

In D62393#1679250 <https://reviews.llvm.org/D62393#1679250>, @ABataev wrote:

> You're wrong. My output:
>
>   omp_in_parallel=0
>   omp_get_level=1
>   omp_get_active_level=0
>
>
> So, `omp_in_parallel` works correctly on GPU.


Ok, thanks for testing. I probably didn't apply the patch correctly, then.

> If it does not work correctly with `OMP_TARGET_OFFLOAD=disabled`, the problem is definitely in `libomp`, not `libomptarget`. With disabled offloading the code is not offloaded to GPU.

I got above output only with host offloading, so that part also seems to be fine.

After revisiting the code I understood, that the value returned by `getParallelLevel` is basically a bitfield: `struct{int active_parallel_level : 1; int parallel_level : 7;}`.


Repository:
  rOMP OpenMP

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https://reviews.llvm.org/D62393