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
81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of CUDA Experimental 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) 2025 NVIDIA CORPORATION & AFFILIATES.
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//
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//===----------------------------------------------------------------------===//
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#include <vector>
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#include <cuda_runtime.h>
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#include <c2h/catch2_test_helper.h>
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#include <cccl/c/experimental/stf/stf.h>
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C2H_TEST("empty stf tasks", "[task]")
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{
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size_t N = 1000000;
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stf_ctx_handle ctx = stf_ctx_create();
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REQUIRE(ctx != nullptr);
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std::vector<float> X(N);
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std::vector<float> Y(N);
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std::vector<float> Z(N);
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stf_logical_data_handle lX = stf_logical_data(ctx, X.data(), N * sizeof(float));
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stf_logical_data_handle lY = stf_logical_data(ctx, Y.data(), N * sizeof(float));
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stf_logical_data_handle lZ = stf_logical_data(ctx, Z.data(), N * sizeof(float));
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REQUIRE(lX != nullptr);
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REQUIRE(lY != nullptr);
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REQUIRE(lZ != nullptr);
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stf_logical_data_set_symbol(lX, "X");
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stf_logical_data_set_symbol(lY, "Y");
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stf_logical_data_set_symbol(lZ, "Z");
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stf_task_handle t1 = stf_task_create(ctx);
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REQUIRE(t1 != nullptr);
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stf_task_set_symbol(t1, "T1");
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stf_task_add_dep(t1, lX, STF_RW);
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stf_task_start(t1);
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stf_task_end(t1);
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stf_task_destroy(t1);
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stf_task_handle t2 = stf_task_create(ctx);
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REQUIRE(t2 != nullptr);
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stf_task_set_symbol(t2, "T2");
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stf_task_add_dep(t2, lX, STF_READ);
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stf_task_add_dep(t2, lY, STF_RW);
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stf_task_start(t2);
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stf_task_end(t2);
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stf_task_destroy(t2);
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stf_task_handle t3 = stf_task_create(ctx);
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REQUIRE(t3 != nullptr);
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stf_task_set_symbol(t3, "T3");
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stf_task_add_dep(t3, lX, STF_READ);
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stf_task_add_dep(t3, lZ, STF_RW);
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stf_task_start(t3);
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stf_task_end(t3);
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stf_task_destroy(t3);
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stf_task_handle t4 = stf_task_create(ctx);
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REQUIRE(t4 != nullptr);
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stf_task_set_symbol(t4, "T4");
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stf_task_add_dep(t4, lY, STF_READ);
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stf_task_add_dep(t4, lZ, STF_RW);
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stf_task_start(t4);
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stf_task_end(t4);
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stf_task_destroy(t4);
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stf_logical_data_destroy(lX);
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stf_logical_data_destroy(lY);
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stf_logical_data_destroy(lZ);
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stf_ctx_finalize(ctx);
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}
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