Integrate NVIDIA's S/R implementation into HPX #6431
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hkaiser
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Feb 3, 2024
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hkaiser
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hkaiser
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| #ifdef HPX_HAVE_STDEXEC | ||
| auto scheduler = | ||
| hpx::execution::experimental::get_completion_scheduler< | ||
| hpx::execution::experimental::set_value_t>( | ||
| hpx::execution::experimental::get_env(u)); | ||
| #else | ||
| auto scheduler = | ||
| hpx::execution::experimental::get_completion_scheduler< | ||
| hpx::execution::experimental::set_value_t>(u); | ||
| #endif |
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I think we could factor out this difference allowing for the diferences to be very localized.
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We would have to alter our existing senders to provide environments, currently most of the times they do not.
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Really? What about:
inline constexpr struct get_completion_scheduler_ex_t
{
template <typename U>
decltype(auto) operator()(U&& u) const
{
#ifdef HPX_HAVE_STDEXEC
return hpx::execution::experimental::get_completion_scheduler<
hpx::execution::experimental::set_value_t>(
hpx::execution::experimental::get_env(HPX_FORWARD(U, u)));
#else
return hpx::execution::experimental::get_completion_scheduler<
hpx::execution::experimental::set_value_t>(HPX_FORWARD(U, u));
#endif
}
} get_completion_scheduler_ex{};
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Ah yes, good point. I will get on that, and I will migrate to using it after sorting out the build system.
libs/core/execution/include/hpx/execution/algorithms/as_sender.hpp
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| static_assert(ex::is_sender_v<decltype(s), ex::empty_env>); | ||
| #endif |
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Shouldn't we rather implement is_sender_in_v for our code base?
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right, leaving that as a TODO to remove much of the duplication from the tests.
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Fetching STDEXEC by default on C++20, so the CI is testing both with and without it. |
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hkaiser
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Just rebased on master |
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Thanks so much! |
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👏 👏 |
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This PR serves to replace the existing senders/receivers implementation in hpx with the stdexec implementation maintained by NVIDIA.
Big credits to the @pika-org team for their work when solving almost the same problem. This PR is built on top of much of that work.