Skip to content
Open
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions libs/core/executors/CMakeLists.txt
Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,8 @@ set(executors_headers
hpx/executors/execution_policy_parameters.hpp
hpx/executors/execution_policy_scheduling_property.hpp
hpx/executors/execution_policy.hpp
hpx/executors/executor_scheduler.hpp
hpx/executors/executor_scheduler_bulk.hpp
hpx/executors/explicit_scheduler_executor.hpp
hpx/executors/fork_join_executor.hpp
hpx/executors/limiting_executor.hpp
Expand Down
148 changes: 148 additions & 0 deletions libs/core/executors/include/hpx/executors/executor_scheduler.hpp
Original file line number Diff line number Diff line change
@@ -0,0 +1,148 @@
// Copyright (c) 2026 The STE||AR-Group
//
// SPDX-License-Identifier: BSL-1.0
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

/// \file parallel/executors/executor_scheduler.hpp

#pragma once

#include <hpx/config.hpp>
#include <hpx/modules/errors.hpp>
#include <hpx/modules/execution.hpp>
#include <hpx/modules/execution_base.hpp>

#include <exception>
#include <type_traits>
#include <utility>

namespace hpx::execution::experimental {

// Forward declarations
template <typename Executor>
struct executor_scheduler;

template <typename Executor>
struct executor_sender;

///////////////////////////////////////////////////////////////////////////
template <typename Executor, typename Receiver>
struct executor_operation_state
{
HPX_NO_UNIQUE_ADDRESS std::decay_t<Executor> exec_;
HPX_NO_UNIQUE_ADDRESS std::decay_t<Receiver> receiver_;

template <typename Exec, typename Recv>
executor_operation_state(Exec&& exec, Recv&& recv)
: exec_(HPX_FORWARD(Exec, exec))
, receiver_(HPX_FORWARD(Recv, recv))
{
}

executor_operation_state(executor_operation_state&&) = delete;
executor_operation_state(executor_operation_state const&) = delete;
executor_operation_state& operator=(
executor_operation_state&&) = delete;
executor_operation_state& operator=(
executor_operation_state const&) = delete;

~executor_operation_state() = default;

friend void tag_invoke(start_t, executor_operation_state& os) noexcept
{
hpx::detail::try_catch_exception_ptr(
[&]() {
hpx::parallel::execution::post(os.exec_,
[receiver = HPX_MOVE(os.receiver_)]() mutable {
hpx::execution::experimental::set_value(
HPX_MOVE(receiver));
});
},
[&](std::exception_ptr ep) {
hpx::execution::experimental::set_error(
HPX_MOVE(os.receiver_), HPX_MOVE(ep));
});
}
};

///////////////////////////////////////////////////////////////////////////
template <typename Executor>
struct executor_sender
{
HPX_NO_UNIQUE_ADDRESS std::decay_t<Executor> exec_;

using completion_signatures =
hpx::execution::experimental::completion_signatures<
hpx::execution::experimental::set_value_t(),
hpx::execution::experimental::set_error_t(std::exception_ptr)>;

template <typename Env>
friend auto tag_invoke(
hpx::execution::experimental::get_completion_signatures_t,
executor_sender const&, Env) noexcept -> completion_signatures;

friend constexpr auto tag_invoke(
hpx::execution::experimental::get_completion_scheduler_t<
hpx::execution::experimental::set_value_t>,
executor_sender const& s) noexcept
{
return executor_scheduler<Executor>{s.exec_};
}

template <typename Receiver>
friend executor_operation_state<Executor, Receiver> tag_invoke(
connect_t, executor_sender&& s, Receiver&& receiver)
{
return {HPX_MOVE(s.exec_), HPX_FORWARD(Receiver, receiver)};
}

template <typename Receiver>
friend executor_operation_state<Executor, Receiver> tag_invoke(
connect_t, executor_sender const& s, Receiver&& receiver)
{
return {s.exec_, HPX_FORWARD(Receiver, receiver)};
}
};

///////////////////////////////////////////////////////////////////////////
template <typename Executor>
struct executor_scheduler
{
using executor_type = std::decay_t<Executor>;

HPX_NO_UNIQUE_ADDRESS executor_type exec_;

constexpr executor_scheduler() = default;

template <typename Exec,
typename = std::enable_if_t<
!std::is_same_v<std::decay_t<Exec>, executor_scheduler>>>
explicit executor_scheduler(Exec&& exec)
: exec_(HPX_FORWARD(Exec, exec))
{
}

constexpr bool operator==(executor_scheduler const& rhs) const noexcept
{
return exec_ == rhs.exec_;
}

constexpr bool operator!=(executor_scheduler const& rhs) const noexcept
{
return !(*this == rhs);
}

friend executor_sender<Executor> tag_invoke(
schedule_t, executor_scheduler&& sched)
{
return {HPX_MOVE(sched.exec_)};
}

friend executor_sender<Executor> tag_invoke(
schedule_t, executor_scheduler const& sched)
{
return {sched.exec_};
}
};
} // namespace hpx::execution::experimental
Original file line number Diff line number Diff line change
@@ -0,0 +1,222 @@
// Copyright (c) 2026 The STE||AR-Group
//
// SPDX-License-Identifier: BSL-1.0
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#pragma once

#include <hpx/config.hpp>

#if defined(HPX_HAVE_STDEXEC)
#include <hpx/execution_base/stdexec_forward.hpp>
#endif

#include <hpx/execution/algorithms/bulk.hpp>
#include <hpx/execution_base/completion_scheduler.hpp>
#include <hpx/execution_base/completion_signatures.hpp>
#include <hpx/execution_base/execution.hpp>
#include <hpx/execution_base/receiver.hpp>
#include <hpx/execution_base/sender.hpp>
#include <hpx/executors/executor_scheduler.hpp>
#include <hpx/modules/errors.hpp>

#include <exception>
#include <type_traits>
#include <utility>

namespace hpx::execution::experimental {

namespace detail {
template <typename Executor, typename Receiver, typename Shape,
typename F>
struct executor_bulk_receiver
{
HPX_NO_UNIQUE_ADDRESS std::decay_t<Executor> exec_;
HPX_NO_UNIQUE_ADDRESS std::decay_t<Receiver> receiver_;
HPX_NO_UNIQUE_ADDRESS std::decay_t<Shape> shape_;
HPX_NO_UNIQUE_ADDRESS std::decay_t<F> f_;

template <typename Error>
friend void tag_invoke(
set_error_t, executor_bulk_receiver&& r, Error&& error) noexcept
{
hpx::execution::experimental::set_error(
HPX_MOVE(r.receiver_), HPX_FORWARD(Error, error));
}

friend void tag_invoke(
set_stopped_t, executor_bulk_receiver&& r) noexcept
{
hpx::execution::experimental::set_stopped(
HPX_MOVE(r.receiver_));
}

template <typename... Ts>
friend void tag_invoke(
set_value_t, executor_bulk_receiver&& r, Ts&&... ts) noexcept
{
hpx::detail::try_catch_exception_ptr(
[&]() {
hpx::parallel::execution::bulk_sync_execute(
r.exec_, r.f_, r.shape_, ts...);

hpx::execution::experimental::set_value(
HPX_MOVE(r.receiver_), HPX_FORWARD(Ts, ts)...);
},
[&](std::exception_ptr ep) {
hpx::execution::experimental::set_error(
HPX_MOVE(r.receiver_), HPX_MOVE(ep));
});
}
};

template <typename Executor, typename Sender, typename Shape,
typename F>
struct executor_bulk_sender
{
HPX_NO_UNIQUE_ADDRESS std::decay_t<Executor> exec_;
HPX_NO_UNIQUE_ADDRESS std::decay_t<Sender> sender_;
HPX_NO_UNIQUE_ADDRESS std::decay_t<Shape> shape_;
HPX_NO_UNIQUE_ADDRESS std::decay_t<F> f_;

#if defined(HPX_HAVE_STDEXEC)
Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please remove the case !defined(HPX_HAVE_STDEXEC) as we have dropped our own implementation of senders&receivers.

using sender_concept = hpx::execution::experimental::sender_t;

template <typename Env>
friend auto tag_invoke(
hpx::execution::experimental::get_completion_signatures_t,
executor_bulk_sender const&, Env const&) -> hpx::execution::
experimental::transform_completion_signatures_of<Sender, Env,
hpx::execution::experimental::completion_signatures<
hpx::execution::experimental::set_error_t(
std::exception_ptr)>>;

struct env
{
std::decay_t<Sender> const& pred_snd;
std::decay_t<Executor> const& exec;

template <typename CPO>
requires(
meta::value<meta::one_of<CPO,
hpx::execution::experimental::set_error_t,
hpx::execution::experimental::set_stopped_t>> &&
hpx::execution::experimental::detail::
has_completion_scheduler_v<CPO,
std::decay_t<Sender>>)
friend constexpr auto tag_invoke(
hpx::execution::experimental::get_completion_scheduler_t<
CPO>
tag,
env const& e) noexcept
{
return tag(
hpx::execution::experimental::get_env(e.pred_snd));
}

friend constexpr auto tag_invoke(
hpx::execution::experimental::get_completion_scheduler_t<
hpx::execution::experimental::set_value_t>,
env const& e) noexcept
{
return hpx::execution::experimental::executor_scheduler<
Executor>{e.exec};
}
};

friend constexpr auto tag_invoke(
hpx::execution::experimental::get_env_t,
executor_bulk_sender const& s) noexcept
{
return env{s.sender_, s.exec_};
}
#else
template <typename Env>
struct generate_completion_signatures
{
template <template <typename...> typename Tuple,
template <typename...> typename Variant>
using value_types =
value_types_of_t<Sender, Env, Tuple, Variant>;

template <template <typename...> typename Variant>
using error_types = hpx::util::detail::unique_concat_t<
error_types_of_t<Sender, Env, Variant>,
Variant<std::exception_ptr>>;

static constexpr bool sends_stopped =
sends_stopped_of_v<Sender, Env>;
};

template <typename Env>
friend auto tag_invoke(
hpx::execution::experimental::get_completion_signatures_t,
executor_bulk_sender const&, Env)
-> generate_completion_signatures<Env>;

template <typename CPO>
friend constexpr auto tag_invoke(
hpx::execution::experimental::get_completion_scheduler_t<CPO>
tag,
executor_bulk_sender const& s)
{
return tag(s.sender_);
}

friend constexpr auto tag_invoke(
hpx::execution::experimental::get_completion_scheduler_t<
hpx::execution::experimental::set_value_t>,
executor_bulk_sender const& s)
{
return hpx::execution::experimental::executor_scheduler<
Executor>{s.exec_};
}
#endif

template <typename Receiver>
friend auto tag_invoke(connect_t,
executor_bulk_sender<Executor, Sender, Shape, F>&& s,
Receiver&& receiver)
{
return hpx::execution::experimental::connect(
HPX_MOVE(s.sender_),
executor_bulk_receiver<Executor, std::decay_t<Receiver>,
Shape, F>{HPX_MOVE(s.exec_),
HPX_FORWARD(Receiver, receiver), HPX_MOVE(s.shape_),
HPX_MOVE(s.f_)});
}

template <typename Receiver>
friend auto tag_invoke(connect_t,
executor_bulk_sender<Executor, Sender, Shape, F>& s,
Receiver&& receiver)
{
return hpx::execution::experimental::connect(s.sender_,
executor_bulk_receiver<Executor, std::decay_t<Receiver>,
Shape, F>{s.exec_, HPX_FORWARD(Receiver, receiver),
s.shape_, s.f_});
}

template <typename Receiver>
friend auto tag_invoke(connect_t,
executor_bulk_sender<Executor, Sender, Shape, F> const& s,
Receiver&& receiver)
{
return hpx::execution::experimental::connect(s.sender_,
executor_bulk_receiver<Executor, std::decay_t<Receiver>,
Shape, F>{s.exec_, HPX_FORWARD(Receiver, receiver),
s.shape_, s.f_});
}
};
} // namespace detail

template <typename Executor, typename Sender, typename Shape, typename F>
auto tag_invoke(bulk_t, executor_scheduler<Executor> const& sched,
Sender&& sender, Shape const& shape, F&& f)
{
return detail::executor_bulk_sender<Executor, std::decay_t<Sender>,
Shape, std::decay_t<F>>{
sched.exec_, HPX_FORWARD(Sender, sender), shape, HPX_FORWARD(F, f)};
}
} // namespace hpx::execution::experimental
Loading
Loading