58 lines
1.4 KiB
Plaintext
58 lines
1.4 KiB
Plaintext
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//===----------------------------------------------------------------------===//
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//
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// Part of CUDASTF in CUDA C++ Core Libraries,
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// under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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// SPDX-FileCopyrightText: Copyright (c) 2022-2024 NVIDIA CORPORATION & AFFILIATES.
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//
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//===----------------------------------------------------------------------===//
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/**
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* @file
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*
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* @brief Illustrate how to use the void data interface
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*
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*/
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#include <cuda/experimental/stf.cuh>
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using namespace cuda::experimental::stf;
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__global__ void dummy_kernel() {}
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int main()
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{
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context ctx;
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auto token = ctx.token();
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ctx.task(token.write())->*[](cudaStream_t) {
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};
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void_interface sync;
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auto token2 = ctx.logical_data(sync);
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auto token3 = ctx.token();
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ctx.task(token2.write(), token.read())->*[](cudaStream_t) {
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};
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// Do not pass useless arguments by removing void_interface arguments
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// Note that the rw() access is possible even if there was no prior write()
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// or actual underlying data.
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ctx.task(token3.rw(), token.read())->*[](cudaStream_t) {
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};
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ctx.cuda_kernel(token3.rw())->*[]() {
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return cuda_kernel_desc{dummy_kernel, 16, 128, 0};
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};
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EXPECT(token.is_void_interface());
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EXPECT(token2.is_void_interface());
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EXPECT(token3.is_void_interface());
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ctx.finalize();
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}
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