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| /* | ||
| * Copyright (c) 2021, NVIDIA CORPORATION. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| #include <rmm/mr/device/cuda_memory_resource.hpp> | ||
| #include <rmm/mr/device/owning_wrapper.hpp> | ||
| #include <rmm/mr/device/per_device_resource.hpp> | ||
| #include <rmm/mr/device/pool_memory_resource.hpp> | ||
|
|
||
| namespace cudf { | ||
|
|
||
| /** | ||
| * @brief An RAII class setting up RMM memory pool for `nvbench` benchmarks | ||
| * | ||
| * This is a temporary solution before templated fixtures tests are supported | ||
| * in `nvbench`. Similarly to `cudf::benchmark`, creating this RAII object in | ||
| * each benchmark will ensure that the RAPIDS Memory Manager pool mode is used | ||
| * in benchmarks, which eliminates memory allocation / deallocation performance | ||
| * overhead from the benchmark. | ||
| * | ||
| * Example: | ||
| * | ||
| * void my_benchmark(nvbench::state& state) { | ||
| * cudf::rmm_pool_raii pool_raii; | ||
| * state.exec([](nvbench::launch& launch) { | ||
| * // benchmark stuff | ||
| * }); | ||
| * } | ||
| * | ||
| * NVBENCH_BENCH(my_benchmark); | ||
| */ | ||
| class rmm_pool_raii { | ||
| private: | ||
| // memory resource factory helpers | ||
| inline auto make_cuda() { return std::make_shared<rmm::mr::cuda_memory_resource>(); } | ||
|
|
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| inline auto make_pool() | ||
| { | ||
| return rmm::mr::make_owning_wrapper<rmm::mr::pool_memory_resource>(make_cuda()); | ||
| } | ||
|
|
||
| public: | ||
| rmm_pool_raii() | ||
| { | ||
| mr = make_pool(); | ||
| rmm::mr::set_current_device_resource(mr.get()); // set default resource to pool | ||
| } | ||
|
|
||
| ~rmm_pool_raii() | ||
| { | ||
| rmm::mr::set_current_device_resource(nullptr); | ||
| mr.reset(); | ||
| } | ||
|
|
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| private: | ||
| std::shared_ptr<rmm::mr::device_memory_resource> mr; | ||
| }; | ||
|
|
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| } // namespace cudf |
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