a49a78ffef
* Fix default cluster callback values to 1 to avoid profiler failure when these values are not set in command line. * v4.2 release.
94 lines
3.1 KiB
C++
94 lines
3.1 KiB
C++
/***************************************************************************************************
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* Copyright (c) 2025 - 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************************************/
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/*!
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\file
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\brief Defines an unsigned 256b integer.
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*/
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#pragma once
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#include "cutlass/cutlass.h"
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#if defined(__CUDACC_RTC__)
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#include CUDA_STD_HEADER(cstdint)
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#else
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#include <cstdint>
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#include <cstdlib>
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#include <cmath>
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#include <type_traits>
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#include <stdexcept>
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#endif
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#include "cutlass/uint128.h"
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namespace cutlass {
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///! Unsigned 256b integer type
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struct alignas(32) uint256_t {
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/// Size of one part of the uint's storage in bits
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static constexpr int storage_bits_ = 128;
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struct hilo {
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uint128_t lo;
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uint128_t hi;
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};
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// Use a union to store either low and high parts.
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union {
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struct hilo hilo_;
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};
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//
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// Methods
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//
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/// Default ctor
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CUTLASS_HOST_DEVICE
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uint256_t() : hilo_{uint128_t{}, uint128_t{}} {}
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/// Constructor from uint128
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CUTLASS_HOST_DEVICE
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uint256_t(uint128_t lo_) : hilo_{lo_, uint128_t{}} {}
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/// Constructor from two 128b unsigned integers
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CUTLASS_HOST_DEVICE
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uint256_t(uint128_t lo_, uint128_t hi_) : hilo_{lo_, hi_} {}
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/// Lossily cast to uint128_t
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CUTLASS_HOST_DEVICE
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explicit operator uint128_t() const {
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return hilo_.lo;
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}
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};
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/////////////////////////////////////////////////////////////////////////////////////////////////
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} // namespace cutlass
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/////////////////////////////////////////////////////////////////////////////////////////////////
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