f1b58a9c2c
Next step is to wire it up with OpenGL-based backend and provide a single GPU delegate. PiperOrigin-RevId: 263822202
82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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#include "tensorflow/lite/delegates/gpu/cl/cl_event.h"
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#include "tensorflow/lite/delegates/gpu/cl/opencl_wrapper.h"
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namespace tflite {
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namespace gpu {
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namespace cl {
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CLEvent::CLEvent(cl_event event) : event_(event) {}
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CLEvent::CLEvent(CLEvent&& event)
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: event_(event.event_), name_(std::move(event.name_)) {
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event.event_ = nullptr;
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}
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CLEvent& CLEvent::operator=(CLEvent&& event) {
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if (this != &event) {
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Release();
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std::swap(event_, event.event_);
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name_ = std::move(event.name_);
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}
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return *this;
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}
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uint64_t CLEvent::GetStartedTimeNs() const {
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cl_ulong time_ns;
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clGetEventProfilingInfo(event_, CL_PROFILING_COMMAND_START, sizeof(cl_ulong),
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&time_ns, nullptr);
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return time_ns;
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}
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uint64_t CLEvent::GetFinishedTimeNs() const {
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cl_ulong time_ns;
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clGetEventProfilingInfo(event_, CL_PROFILING_COMMAND_END, sizeof(cl_ulong),
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&time_ns, nullptr);
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return time_ns;
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}
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double CLEvent::GetEventTimeMs() const {
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const uint64_t start = GetStartedTimeNs();
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const uint64_t end = GetFinishedTimeNs();
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const uint64_t time_ns = (end - start);
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return static_cast<double>(time_ns) * 1e-6;
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}
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uint64_t CLEvent::GetEventTimeNs() const {
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return GetFinishedTimeNs() - GetStartedTimeNs();
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}
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void CLEvent::SetName(const std::string& name) { name_ = name; }
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void CLEvent::Wait() const { clWaitForEvents(1, &event_); }
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CLEvent::~CLEvent() { Release(); }
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void CLEvent::Release() {
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if (event_) {
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clReleaseEvent(event_);
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event_ = nullptr;
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}
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}
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} // namespace cl
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} // namespace gpu
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} // namespace tflite
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