105 lines
3.4 KiB
Plaintext
105 lines
3.4 KiB
Plaintext
/***************************************************************************************************
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* Copyright (c) 2017 - 2024 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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#include "cutlass_unit_test.h"
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#include <iostream>
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#include <iomanip>
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#include <utility>
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#include <type_traits>
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#include <vector>
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#include <numeric>
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#include <thrust/host_vector.h>
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#include <thrust/device_vector.h>
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#include <cute/tensor.hpp>
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using namespace cute;
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__global__ void
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test(double const* g_in, double* g_out)
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{
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extern __shared__ double smem[];
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smem[threadIdx.x] = g_in[threadIdx.x];
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__syncthreads();
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g_out[threadIdx.x] = 2 * smem[threadIdx.x];
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}
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__global__ void
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test2(double const* g_in, double* g_out)
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{
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using namespace cute;
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extern __shared__ double smem[];
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auto s_tensor = make_tensor(make_smem_ptr(smem + threadIdx.x), Int<1>{});
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auto g_tensor = make_tensor(make_gmem_ptr(g_in + threadIdx.x), Int<1>{});
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copy(g_tensor, s_tensor);
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cp_async_fence();
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cp_async_wait<0>();
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__syncthreads();
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g_out[threadIdx.x] = 2 * smem[threadIdx.x];
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}
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TEST(SM80_CuTe_Ampere, CpAsync)
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{
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constexpr int count = 32;
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thrust::host_vector<double> h_in(count);
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for (int i = 0; i < count; ++i) {
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h_in[i] = double(i);
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}
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thrust::device_vector<double> d_in(h_in);
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thrust::device_vector<double> d_out(count, -1);
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test<<<1, count, sizeof(double) * count>>>(
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thrust::raw_pointer_cast(d_in.data()),
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thrust::raw_pointer_cast(d_out.data()));
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thrust::host_vector<double> h_result = d_out;
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thrust::device_vector<double> d_out_cp_async(count, -2);
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test2<<<1, count, sizeof(double) * count>>>(
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thrust::raw_pointer_cast(d_in.data()),
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thrust::raw_pointer_cast(d_out_cp_async.data()));
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thrust::host_vector<double> h_result_cp_async = d_out_cp_async;
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for (int i = 0; i < count; ++i) {
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EXPECT_EQ(h_result[i], h_result_cp_async[i]);
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}
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}
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