mirror of
https://github.com/PaddlePaddle/FastDeploy.git
synced 2025-10-05 08:37:06 +08:00
119 lines
3.9 KiB
C++
119 lines
3.9 KiB
C++
/*
|
|
* Copyright (c) 1993-2022, NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef ENTROPY_CALIBRATOR_H
|
|
#define ENTROPY_CALIBRATOR_H
|
|
|
|
#include "BatchStream.h"
|
|
#include "NvInfer.h"
|
|
|
|
//! \class EntropyCalibratorImpl
|
|
//!
|
|
//! \brief Implements common functionality for Entropy calibrators.
|
|
//!
|
|
template <typename TBatchStream> class EntropyCalibratorImpl {
|
|
public:
|
|
EntropyCalibratorImpl(TBatchStream stream, int firstBatch,
|
|
std::string networkName, const char* inputBlobName,
|
|
bool readCache = true)
|
|
: mStream{stream},
|
|
mCalibrationTableName("CalibrationTable" + networkName),
|
|
mInputBlobName(inputBlobName), mReadCache(readCache) {
|
|
nvinfer1::Dims dims = mStream.getDims();
|
|
mInputCount = samplesCommon::volume(dims);
|
|
CHECK(cudaMalloc(&mDeviceInput, mInputCount * sizeof(float)));
|
|
mStream.reset(firstBatch);
|
|
}
|
|
|
|
virtual ~EntropyCalibratorImpl() { CHECK(cudaFree(mDeviceInput)); }
|
|
|
|
int getBatchSize() const noexcept { return mStream.getBatchSize(); }
|
|
|
|
bool getBatch(void* bindings[], const char* names[],
|
|
int nbBindings) noexcept {
|
|
if (!mStream.next()) {
|
|
return false;
|
|
}
|
|
CHECK(cudaMemcpy(mDeviceInput, mStream.getBatch(),
|
|
mInputCount * sizeof(float), cudaMemcpyHostToDevice));
|
|
ASSERT(!strcmp(names[0], mInputBlobName));
|
|
bindings[0] = mDeviceInput;
|
|
return true;
|
|
}
|
|
|
|
const void* readCalibrationCache(size_t& length) noexcept {
|
|
mCalibrationCache.clear();
|
|
std::ifstream input(mCalibrationTableName, std::ios::binary);
|
|
input >> std::noskipws;
|
|
if (mReadCache && input.good()) {
|
|
std::copy(std::istream_iterator<char>(input),
|
|
std::istream_iterator<char>(),
|
|
std::back_inserter(mCalibrationCache));
|
|
}
|
|
length = mCalibrationCache.size();
|
|
return length ? mCalibrationCache.data() : nullptr;
|
|
}
|
|
|
|
void writeCalibrationCache(const void* cache, size_t length) noexcept {
|
|
std::ofstream output(mCalibrationTableName, std::ios::binary);
|
|
output.write(reinterpret_cast<const char*>(cache), length);
|
|
}
|
|
|
|
private:
|
|
TBatchStream mStream;
|
|
size_t mInputCount;
|
|
std::string mCalibrationTableName;
|
|
const char* mInputBlobName;
|
|
bool mReadCache{true};
|
|
void* mDeviceInput{nullptr};
|
|
std::vector<char> mCalibrationCache;
|
|
};
|
|
|
|
//! \class Int8EntropyCalibrator2
|
|
//!
|
|
//! \brief Implements Entropy calibrator 2.
|
|
//! CalibrationAlgoType is kENTROPY_CALIBRATION_2.
|
|
//!
|
|
template <typename TBatchStream>
|
|
class Int8EntropyCalibrator2 : public IInt8EntropyCalibrator2 {
|
|
public:
|
|
Int8EntropyCalibrator2(TBatchStream stream, int firstBatch,
|
|
const char* networkName, const char* inputBlobName,
|
|
bool readCache = true)
|
|
: mImpl(stream, firstBatch, networkName, inputBlobName, readCache) {}
|
|
|
|
int getBatchSize() const noexcept override { return mImpl.getBatchSize(); }
|
|
|
|
bool getBatch(void* bindings[], const char* names[],
|
|
int nbBindings) noexcept override {
|
|
return mImpl.getBatch(bindings, names, nbBindings);
|
|
}
|
|
|
|
const void* readCalibrationCache(size_t& length) noexcept override {
|
|
return mImpl.readCalibrationCache(length);
|
|
}
|
|
|
|
void writeCalibrationCache(const void* cache,
|
|
size_t length) noexcept override {
|
|
mImpl.writeCalibrationCache(cache, length);
|
|
}
|
|
|
|
private:
|
|
EntropyCalibratorImpl<TBatchStream> mImpl;
|
|
};
|
|
|
|
#endif // ENTROPY_CALIBRATOR_H
|