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deaae40bd7
* Update TensorRT-LLM --------- Co-authored-by: Shixiaowei02 <39303645+Shixiaowei02@users.noreply.github.com>
103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
/*
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* Copyright (c) 2022-2024, NVIDIA CORPORATION. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "tensorrt_llm/common/assert.h"
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#include "tensorrt_llm/common/cudaUtils.h"
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#include "tensorrt_llm/common/logger.h"
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#include <cuda_runtime_api.h>
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#include <memory>
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namespace tensorrt_llm::runtime
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{
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class CudaEvent
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{
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public:
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using pointer = cudaEvent_t;
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//! Creates a new cuda event. The event will be destroyed in the destructor.
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//!
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//! \param flags Flags for event creation. By default, event timing is disabled.
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explicit CudaEvent(unsigned int flags = cudaEventDisableTiming)
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{
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pointer event;
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TLLM_CUDA_CHECK(::cudaEventCreate(&event, flags));
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TLLM_LOG_TRACE("Created event %p", event);
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bool constexpr ownsEvent{true};
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mEvent = EventPtr{event, Deleter{ownsEvent}};
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}
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//! Pass an existing cuda event to this object.
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//!
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//! \param event The event to pass to this object.
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//! \param ownsEvent Whether this object owns the event and destroys it in the destructor.
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explicit CudaEvent(pointer event, bool ownsEvent = true)
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{
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TLLM_CHECK_WITH_INFO(event != nullptr, "event is nullptr");
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mEvent = EventPtr{event, Deleter{ownsEvent}};
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}
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//! Returns the event associated with this object.
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[[nodiscard]] pointer get() const
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{
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return mEvent.get();
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}
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//! \brief Synchronizes the event.
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void synchronize() const
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{
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TLLM_CUDA_CHECK(::cudaEventSynchronize(get()));
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}
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private:
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class Deleter
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{
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public:
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explicit Deleter(bool ownsEvent)
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: mOwnsEvent{ownsEvent}
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{
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}
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explicit Deleter()
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: Deleter{true}
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{
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}
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constexpr void operator()(pointer event) const
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{
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if (mOwnsEvent && event != nullptr)
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{
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TLLM_CUDA_CHECK(::cudaEventDestroy(event));
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TLLM_LOG_TRACE("Destroyed event %p", event);
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}
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}
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private:
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bool mOwnsEvent;
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};
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using element_type = std::remove_pointer_t<pointer>;
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using EventPtr = std::unique_ptr<element_type, Deleter>;
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EventPtr mEvent;
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};
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} // namespace tensorrt_llm::runtime
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