Re: CUDA context management questions
On Fri, Oct 5, 2018 at 12:57 PM Pearu Peterson
> While researching CUDA context management code in arrow,
> I noticed the following:
> CudaContextImpl has a member own_context_ that seems not being initialized
> anywhere. The member own_context_ determines whether the context will be
> destroyed or not (see CudaContextImpl Close method).
> Is this a bug or am I missing something?
> The reason why I was looking at this, was establishing a interoperability
> between numba.cuda and pyarrow.cuda. The idea is to be able to use
> numba.cuda defined context within pyarrow.cuda somehow and the own_context_
> member seems to be relevant for that. However, there seems to be no API to
> use it.
> Is this work-in-progress?
This was a placeholder for
https://issues.apache.org/jira/browse/ARROW-1423. The objective
exactly was to be able to bridge into contexts created by others, like
Numba. So I've just been waiting for someone with the need to take up
> Finally, what do you think, is it realistic to obtain interoperability
> between numba.cuda and pyarrow.cuda? I am able to feed pyarrow.cuda buffer
> data to numba jitted functions and it works only up to some point where the
> context managers seem to interfere with each other that leads to CUDA
Yes, it's realistic. Let me know if you need some help
> Best regards,