[Openmp-dev] Execute offloading app on host without GPU

[Itaru Kitayama via Openmp-dev]

The latter, setting the env var to `disabled' makes the offloading app
run fine on a host without GPUs.
Thanks!

On Tue, Feb 9, 2021 at 9:11 PM Joachim Protze <protze.joachim at gmail.com> wrote:
>
> Hi Itaru,
>
> there are at least two ways to execute an offloading app on the host:
> compile the application with
> -fopenmp-targets=x86_64-pc-linux-gnu
> for offloading to host support, or execute a randomly built application
> with OMP_TARGET_OFFLOAD=disabled. Which one does not work for you?
> And what is the concrete error? Compile time error, runtime error?
>
> - Joachim
>
>
> Am 09.02.21 um 01:50 schrieb Johannes Doerfert via Openmp-dev:
> > It's not like we broke it and ignore the problem. As far as I know
> > there is no problem in the compiler support. However, you cannot
> > expect every source code to just work if you offload to the host
> > (then and now). That said, we are working on a more genuine host
> > offloading capability that will behave "like a GPU" but on the CPU.
> >
> >
> >
> > On 2/8/21 6:39 PM, Itaru Kitayama wrote:
> >> For debugging purposes, it’d be nice this is guaranteed to work. I recall
> >> it was with couples of major releases ago.
> >>
> >> On Tue, Feb 9, 2021 at 9:37 Johannes Doerfert
> >> <johannesdoerfert at gmail.com>
> >> wrote:
> >>
> >>> I expect this to be working still, though there are various things that
> >>> can go wrong.
> >>>
> >>>
> >>> On 2/8/21 6:34 PM, Itaru Kitayama via Openmp-dev wrote:
> >>>> Is this possible? I keep getting runtime error with the latest Clang.
> >>>>
> >>>>
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>