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/*
* SPDX-FileCopyrightText: Copyright (c) 1993-2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
*
* 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 TRT_SAMPLE_ENGINES_H
#define TRT_SAMPLE_ENGINES_H
#include <iostream>
#include <vector>
#include "NvCaffeParser.h"
#include "NvInfer.h"
#include "NvInferConsistency.h"
#include "NvInferSafeRuntime.h"
#include "NvOnnxParser.h"
#include "NvUffParser.h"
#include "sampleOptions.h"
#include "sampleUtils.h"
namespace sample
{
struct Parser
{
std::unique_ptr<nvcaffeparser1::ICaffeParser> caffeParser;
std::unique_ptr<nvuffparser::IUffParser> uffParser;
std::unique_ptr<nvonnxparser::IParser> onnxParser;
operator bool() const
{
return caffeParser || uffParser || onnxParser;
}
};
//!
//! \brief A helper class to hold a serialized engine (std or safe) and only deserialize it when being accessed.
//!
class LazilyDeserializedEngine
{
public:
//!
//! \brief Delete default constructor to make sure isSafe and DLACore are always set.
//!
LazilyDeserializedEngine() = delete;
//!
//! \brief Constructor of LazilyDeserializedEngine.
//!
LazilyDeserializedEngine(bool isSafe, bool versionCompatible, int32_t DLACore, std::string const& tempdir,
nvinfer1::TempfileControlFlags tempfileControls, std::string const& leanDLLPath)
: mIsSafe(isSafe)
, mVersionCompatible(versionCompatible)
, mDLACore(DLACore)
, mTempdir(tempdir)
, mTempfileControls(tempfileControls)
, mLeanDLLPath(leanDLLPath)
{
}
//!
//! \brief Move from another LazilyDeserializedEngine.
//!
LazilyDeserializedEngine(LazilyDeserializedEngine&& other)
{
mIsSafe = other.mIsSafe;
mVersionCompatible = other.mVersionCompatible;
mDLACore = other.mDLACore;
mEngineBlob = std::move(other.mEngineBlob);
mEngine = std::move(other.mEngine);
mSafeEngine = std::move(other.mSafeEngine);
mTempdir = std::move(other.mTempdir);
mTempfileControls = other.mTempfileControls;
mLeanDLLPath = std::move(other.mLeanDLLPath);
mDynamicPlugins = std::move(other.mDynamicPlugins);
}
//!
//! \brief Delete copy constructor.
//!
LazilyDeserializedEngine(LazilyDeserializedEngine const& other) = delete;
//!
//! \brief Get the pointer to the ICudaEngine. Triggers deserialization if not already done so.
//!
nvinfer1::ICudaEngine* get();
//!
//! \brief Get the pointer to the ICudaEngine and release the ownership.
//!
nvinfer1::ICudaEngine* release();
//!
//! \brief Get the pointer to the safe::ICudaEngine. Triggers deserialization if not already done so.
//!
nvinfer1::safe::ICudaEngine* getSafe();
//!
//! \brief Get the underlying blob storing serialized engine.
//!
std::vector<uint8_t> const& getBlob() const
{
return mEngineBlob;
}
//!
//! \brief Set the underlying blob storing serialized engine.
//!
void setBlob(void* data, size_t size)
{
mEngineBlob.resize(size);
std::memcpy(mEngineBlob.data(), data, size);
mEngine.reset();
mSafeEngine.reset();
}
//!
//! \brief Release the underlying blob without deleting the deserialized engine.
//!
void releaseBlob()
{
mEngineBlob.clear();
}
//!
//! \brief Get if safe mode is enabled.
//!
bool isSafe()
{
return mIsSafe;
}
void setDynamicPlugins(std::vector<std::string> const& dynamicPlugins)
{
mDynamicPlugins = dynamicPlugins;
}
private:
bool mIsSafe{false};
bool mVersionCompatible{false};
int32_t mDLACore{-1};
std::vector<uint8_t> mEngineBlob;
std::string mTempdir{};
nvinfer1::TempfileControlFlags mTempfileControls{getTempfileControlDefaults()};
std::string mLeanDLLPath{};
std::vector<std::string> mDynamicPlugins;
//! \name Owned TensorRT objects
//! Per TensorRT object lifetime requirements as outlined in the developer guide,
//! the runtime must remain live while any engines created by the runtime are live.
//! DO NOT ADJUST the declaration order here: runtime -> (engine|safeEngine).
//! Destruction occurs in reverse declaration order: (engine|safeEngine) -> runtime.
//!@{
//! The runtime used to track parent of mRuntime if one exists.
//! Needed to load mRuntime if lean.so is supplied through file system path.
std::unique_ptr<nvinfer1::IRuntime> mParentRuntime{};
//! The runtime that is used to deserialize the engine.
std::unique_ptr<nvinfer1::IRuntime> mRuntime{};
//! If mIsSafe is false, this points to the deserialized std engine
std::unique_ptr<nvinfer1::ICudaEngine> mEngine{};
//! If mIsSafe is true, this points to the deserialized safe engine
std::unique_ptr<nvinfer1::safe::ICudaEngine> mSafeEngine{};
//!@}
};
struct BuildEnvironment
{
BuildEnvironment() = delete;
BuildEnvironment(BuildEnvironment const& other) = delete;
BuildEnvironment(BuildEnvironment&& other) = delete;
BuildEnvironment(bool isSafe, bool versionCompatible, int32_t DLACore, std::string const& tempdir,
nvinfer1::TempfileControlFlags tempfileControls, std::string const& leanDLLPath = "")
: engine(isSafe, versionCompatible, DLACore, tempdir, tempfileControls, leanDLLPath)
{
}
//! \name Owned TensorRT objects
//! Per TensorRT object lifetime requirements as outlined in the developer guide,
//! factory objects must remain live while the objects created by those factories
//! are live (with the exception of builder -> engine).
//! DO NOT ADJUST the declaration order here: builder -> network -> parser.
//! Destruction occurs in reverse declaration order: parser -> network -> builder.
//!@{
//! The builder used to build the engine.
std::unique_ptr<nvinfer1::IBuilder> builder;
//! The network used by the builder.
std::unique_ptr<nvinfer1::INetworkDefinition> network;
//! The parser used to specify the network.
Parser parser;
//! The engine.
LazilyDeserializedEngine engine;
//!@}
};
//!
//! \brief Set up network and config
//!
//! \return boolean Return true if network and config were successfully set
//!
bool setupNetworkAndConfig(const BuildOptions& build, const SystemOptions& sys, nvinfer1::IBuilder& builder,
nvinfer1::INetworkDefinition& network, nvinfer1::IBuilderConfig& config, std::ostream& err,
std::vector<std::vector<char>>& sparseWeights);
//!
//! \brief Log refittable layers and weights of a refittable engine
//!
void dumpRefittable(nvinfer1::ICudaEngine& engine);
//!
//! \brief Load a serialized engine
//!
//! \return Pointer to the engine loaded or nullptr if the operation failed
//!
nvinfer1::ICudaEngine* loadEngine(std::string const& engine, int32_t DLACore, std::ostream& err);
//!
//! \brief Save an engine into a file
//!
//! \return boolean Return true if the engine was successfully saved
//!
bool saveEngine(nvinfer1::ICudaEngine const& engine, std::string const& fileName, std::ostream& err);
//!
//! \brief Create an engine from model or serialized file, and optionally save engine
//!
//! \return Pointer to the engine created or nullptr if the creation failed
//!
bool getEngineBuildEnv(
ModelOptions const& model, BuildOptions const& build, SystemOptions& sys, BuildEnvironment& env, std::ostream& err);
//!
//! \brief Create a serialized network
//!
//! \return Pointer to a host memory for a serialized network
//!
nvinfer1::IHostMemory* networkToSerialized(const BuildOptions& build, const SystemOptions& sys,
nvinfer1::IBuilder& builder, nvinfer1::INetworkDefinition& network, std::ostream& err);
//!
//! \brief Tranfer model to a serialized network
//!
//! \return Pointer to a host memory for a serialized network
//!
nvinfer1::IHostMemory* modelToSerialized(
const ModelOptions& model, const BuildOptions& build, const SystemOptions& sys, std::ostream& err);
//!
//! \brief Serialize network and save it into a file
//!
//! \return boolean Return true if the network was successfully serialized and saved
//!
bool serializeAndSave(
const ModelOptions& model, const BuildOptions& build, const SystemOptions& sys, std::ostream& err);
bool timeRefit(const nvinfer1::INetworkDefinition& network, nvinfer1::ICudaEngine& engine, bool multiThreading);
//!
//! \brief Set tensor scales from a calibration table
//!
void setTensorScalesFromCalibration(nvinfer1::INetworkDefinition& network, std::vector<IOFormat> const& inputFormats,
std::vector<IOFormat> const& outputFormats, std::string const& calibrationFile);
//!
//! \brief Check if safe runtime is loaded.
//!
bool hasSafeRuntime();
//!
//! \brief Create a safe runtime object if the dynamic library is loaded.
//!
nvinfer1::safe::IRuntime* createSafeInferRuntime(nvinfer1::ILogger& logger) noexcept;
//!
//! \brief Check if consistency checker is loaded.
//!
bool hasConsistencyChecker();
//!
//! \brief Create a consistency checker object if the dynamic library is loaded.
//!
nvinfer1::consistency::IConsistencyChecker* createConsistencyChecker(
nvinfer1::ILogger& logger, nvinfer1::IHostMemory const* engine) noexcept;
//!
//! \brief Run consistency check on serialized engine.
//!
bool checkSafeEngine(void const* serializedEngine, int32_t const engineSize);
bool loadEngineToBuildEnv(std::string const& engine, bool enableConsistency, BuildEnvironment& env, std::ostream& err);
} // namespace sample
#endif // TRT_SAMPLE_ENGINES_H