dedf08166a
Added 863 files from NVIDIA/cccl sparse checkout: - c2h/ (27 files): Catch2 test helpers — generators, validators, runner - nvbench_helper/ (10 files): Benchmark harness utilities - cmake/ (29 files): CMake presets and build helpers - cudax/ (794 files): Experimental CUDA extensions - AGENTS.md: NVIDIA's official AI agent instructions for CCCL - CMakePresets.json: Standardized build configurations - cccl-version.json: Version tracking Also added CCCL_ASSET_MAP.md mapping all 4295 CCCL files to competition value and PRD items. cccl_upstream now covers 100% of competition-critical assets: - 27 tuning headers (SM80/90/100 benchmark data) - 32 dispatch headers (algorithm implementations) - 60 Thrust examples (correctness verification) - 217 CUB Catch2 tests (regression matrix) - 153 CUB benchmarks (parameter space search) - 18 CUB examples (API verification) - 27 test helpers + benchmark harness - 794 cudax experimental extensions
94 lines
2.1 KiB
Plaintext
94 lines
2.1 KiB
Plaintext
//===----------------------------------------------------------------------===//
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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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* @brief This test ensures that read() can be called on const logical_data
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* (typed and untyped).
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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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struct foo
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{
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// Intentionally choose an odd (actually prime) size
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foo(context& ctx)
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{
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l = ctx.logical_data(shape_of<slice<int>>(50867));
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}
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void set(context& ctx, int val)
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{
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ctx.parallel_for(l.shape(), l.write())->*[=] _CCCL_DEVICE(size_t i, auto dl) {
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dl(i) = val;
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};
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}
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void copy_from(context& ctx, const foo& other)
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{
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ctx.parallel_for(l.shape(), l.write(), other.l.read())->*[=] _CCCL_DEVICE(size_t i, auto dl, auto dotherl) {
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dl(i) = dotherl(i);
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};
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}
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void ensure(context& ctx, int val)
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{
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std::ignore = val;
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ctx.parallel_for(l.shape(), l.read())->*[=] _CCCL_DEVICE(size_t i, auto dl) {
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assert(dl(i) == val);
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};
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}
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auto& get_l() const
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{
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return l;
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}
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logical_data<slice<int>> l;
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};
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void read_only_access(context& ctx, const foo& f)
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{
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ctx.parallel_for(f.l.shape(), f.l.read())->*[] _CCCL_DEVICE(size_t i, auto dl) {
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// no-op
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};
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ctx.parallel_for(f.get_l().shape(), f.get_l().read())->*[] _CCCL_DEVICE(size_t i, auto dl) {
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// no-op
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};
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}
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void read_only_access_untyped(const logical_data_untyped& ld)
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{
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auto dep = ld.read();
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(void) dep;
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}
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int main()
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{
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context ctx;
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foo A(ctx);
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A.set(ctx, 42);
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A.ensure(ctx, 42);
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foo B(ctx);
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B.copy_from(ctx, A);
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B.ensure(ctx, 42);
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read_only_access(ctx, A);
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const logical_data_untyped& ld_untyped = A.l;
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read_only_access_untyped(ld_untyped);
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ctx.finalize();
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}
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