56fd68e7dd
CCCL (CUDA C++ Core Libraries) provides: - CUB: device/block/warp-level GPU primitives (reduce, scan, sort, topk) - Thrust: high-level parallel algorithms (transform_reduce, sort, scan) - libcudacxx: CUDA C++ standard library (atomics, barriers, memory) - cudax: experimental features (memory resources, allocators) - Tuning policies: per-SM hardware-specific algorithm parameters Competition optimization vectors mapped to CCCL: - Output TPS (83% weight): warp_reduce, block_reduce, device_topk - Input TPS (14% weight): device_scan, block_load, prefetch - Cache TPS (3% weight): prefix caching strategy patterns - Memory (0.9 util): pooled/cached/buddy allocators Source: https://github.com/NVIDIA/cccl (shallow clone, HEAD only) License: Apache-2.0
108 lines
2.7 KiB
Plaintext
108 lines
2.7 KiB
Plaintext
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of CUDA Experimental in CUDA C++ Core Libraries,
|
|
// under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
// SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#pragma once
|
|
|
|
#include <cuda/__utility/immovable.h>
|
|
|
|
#include <cuda/experimental/execution.cuh>
|
|
|
|
#include "testing.cuh" // IWYU pragma: keep
|
|
|
|
namespace ex = cuda::experimental::execution;
|
|
|
|
namespace
|
|
{
|
|
namespace _dummy
|
|
{
|
|
template <class Domain>
|
|
struct _attrs_t
|
|
{
|
|
_CCCL_HOST_DEVICE constexpr auto query(ex::get_completion_scheduler_t<ex::set_value_t>) const noexcept;
|
|
|
|
_CCCL_HOST_DEVICE constexpr auto query(ex::get_completion_domain_t<ex::set_value_t>) const noexcept
|
|
{
|
|
return Domain{};
|
|
}
|
|
};
|
|
|
|
template <class Rcvr>
|
|
struct _opstate_t : cuda::__immovable
|
|
{
|
|
using operation_state_concept = ex::operation_state_t;
|
|
|
|
_CCCL_HOST_DEVICE constexpr _opstate_t(Rcvr rcvr) noexcept
|
|
: _rcvr(static_cast<Rcvr&&>(rcvr))
|
|
{}
|
|
|
|
_CCCL_HOST_DEVICE constexpr void start() noexcept
|
|
{
|
|
ex::set_value(static_cast<Rcvr&&>(_rcvr));
|
|
}
|
|
|
|
Rcvr _rcvr;
|
|
};
|
|
|
|
template <class Domain>
|
|
struct _sndr_t
|
|
{
|
|
using sender_concept = ex::sender_t;
|
|
|
|
template <class Self>
|
|
_CCCL_HOST_DEVICE static _CCCL_CONSTEVAL auto get_completion_signatures() noexcept
|
|
{
|
|
return ex::completion_signatures<ex::set_value_t()>();
|
|
}
|
|
|
|
template <class Rcvr>
|
|
_CCCL_HOST_DEVICE constexpr auto connect(Rcvr rcvr) const noexcept -> _opstate_t<Rcvr>
|
|
{
|
|
return _opstate_t<Rcvr>(static_cast<Rcvr&&>(rcvr));
|
|
}
|
|
|
|
[[nodiscard]] _CCCL_HOST_DEVICE constexpr auto get_env() const noexcept
|
|
{
|
|
return _attrs_t<Domain>{};
|
|
}
|
|
};
|
|
} // namespace _dummy
|
|
|
|
//! Scheduler that returns a sender that always completes inline (successfully).
|
|
template <class Domain = ex::default_domain>
|
|
struct dummy_scheduler : _dummy::_attrs_t<Domain>
|
|
{
|
|
using scheduler_concept = ex::scheduler_t;
|
|
|
|
_CCCL_HOST_DEVICE static constexpr auto schedule() noexcept -> _dummy::_sndr_t<Domain>
|
|
{
|
|
return {};
|
|
}
|
|
|
|
_CCCL_HOST_DEVICE friend constexpr bool operator==(dummy_scheduler, dummy_scheduler) noexcept
|
|
{
|
|
return true;
|
|
}
|
|
|
|
_CCCL_HOST_DEVICE friend constexpr bool operator!=(dummy_scheduler, dummy_scheduler) noexcept
|
|
{
|
|
return false;
|
|
}
|
|
};
|
|
|
|
namespace _dummy
|
|
{
|
|
template <class Domain>
|
|
_CCCL_HOST_DEVICE constexpr auto _attrs_t<Domain>::query(ex::get_completion_scheduler_t<ex::set_value_t>) const noexcept
|
|
{
|
|
return dummy_scheduler<Domain>{};
|
|
}
|
|
} // namespace _dummy
|
|
} // namespace
|