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2026-07-13 13:33:03 +08:00

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//
// QNNConvolution.cpp
// MNN
//
// Created by MNN on b'2025/04/10'.
// Copyright © 2018, Alibaba Group Holding Limited
//
#include "QNNConvolution.hpp"
#include <cmath>
namespace MNN {
namespace QNN {
#ifdef ENABLE_QNN_ONLINE_FINALIZE
static std::pair<int, int> closest_factors(int n) {
int a = static_cast<int>(std::sqrt(n));
for (; a >= 1; --a) {
if (n % a == 0) {
int b = n / a;
return {a, b};
}
}
return {1, n};
}
void QNNConvolution::isWeightQuantSupported(const Tensor *input, const int ic, const int oc){
Qnn_DataType_t dataType = mBackend->getNativeTensor(input)->v1.dataType;
if(mOp->main_as_Convolution2D()->quanParameter() == nullptr){
mWeightQuant = false;
return;
}else{
bool hasBias = false;
auto bias = mOp->main_as_Convolution2D()->bias();
auto biasPtr = (float*)bias->data();
for(int i = 0; i < oc; ++i){
if(biasPtr[i] != 0.0f){
hasBias = true;
break;
}
}
std::shared_ptr<ConvolutionCommon::Int8Common> quanCommon = ConvolutionCommon::load(mOp, this->backend(), false, true);
int totalCount = quanCommon->alpha.size();
mBlockSize = totalCount / oc;
if(quanCommon->asymmetric){
// not support asymmetric and mBlockSize > 1 results incorrect now
mWeightQuant = false;
return;
}
if(dataType == QNN_DATATYPE_FLOAT_16 || dataType == QNN_DATATYPE_FLOAT_32){
if(mIsMatMul && mBlockSize == 1){
mWeightQuant = true;
}else{
mWeightQuant = false;
}
return;
}
if(mBlockSize > 1){
if(mIs1x1Conv && hasBias == false && (ic / mBlockSize) >= 16){
mWeightQuant = true;
}else{
mWeightQuant = false;
}
}else{
mWeightQuant = true;
}
}
}
ErrorCode QNNConvolution::onEncode(const std::vector<Tensor *> &inputs, const std::vector<Tensor *> &outputs) {
auto conv2D = mOp->main_as_Convolution2D();
auto common = conv2D->common();
Qnn_DataType_t dataType = mBackend->getNativeTensor(inputs[0])->v1.dataType;
int n;
int ih, iw, ic;
int oh, ow, oc;
int kernelH, kernelW;
int strideH, strideW;
int padTop, padBottom, padLeft, padRight;
int dilationH, dilationW;
int group;
// compute shape
{
n = inputs[0]->batch();
ih = inputs[0]->height(); iw = inputs[0]->width(); ic = inputs[0]->channel();
oh = outputs[0]->height(); ow = outputs[0]->width(); oc = outputs[0]->channel();
kernelH = common->kernelY(); kernelW = common->kernelX();
strideH = common->strideY(); strideW = common->strideX();
auto pads = ConvolutionCommon::convolutionPadFull(inputs[0], outputs[0], common);
padTop = std::get<1>(pads); padBottom = std::get<3>(pads); padLeft = std::get<0>(pads); padRight = std::get<2>(pads);
dilationH = common->dilateY(); dilationW = common->dilateX();
group = common->group();
}
mIs1x1Conv = kernelW==1 && strideH==1 && \
strideW==1 && dilationH==1 && dilationW==1 && group==1 && \
padTop==0 && padBottom==0 && padLeft==0 && padRight==0;
mIsMatMul = mIs1x1Conv;
isWeightQuantSupported(inputs[0], ic, oc);
if(mIsMatMul && mWeightQuant && (dataType == QNN_DATATYPE_FLOAT_16 || dataType == QNN_DATATYPE_FLOAT_32)){
return onEncodeFpAIntBMatMul(inputs[0], outputs[0], n, ih, iw, ic, oc);
}
// MNN_PRINT("mIs1x1Conv:%d mIsMatMul:%d mWeightQuant:%d, Conv k%dx%d s%dx%d d%dx%d g%d nhw:%d %d %d, ic%d oc%d\n", mIs1x1Conv, mIsMatMul, mWeightQuant, kernelW, kernelH, strideW, strideH, dilationW, dilationH, group, n, ih, iw, ic, oc);
// create all tensors and params
{
std::vector<uint32_t> strideData = {(uint32_t)strideH, (uint32_t)strideW};
std::vector<uint32_t> padAmountData = {(uint32_t)padTop, (uint32_t)padBottom, (uint32_t)padLeft, (uint32_t)padRight};
std::vector<uint32_t> dilationData = {(uint32_t)dilationH, (uint32_t)dilationW};
this->createParamTensor("stride", QNN_DATATYPE_UINT_32, {2}, (void *)strideData.data());
this->createParamTensor("pad_amount", QNN_DATATYPE_UINT_32, {2, 2}, (void *)padAmountData.data());
this->createParamTensor("dilation", QNN_DATATYPE_UINT_32, {2}, (void *)dilationData.data());
this->createParamScalar("group", (uint32_t)group);
}
this->createWeightAndBias(dataType, inputs[0], oc, ic, kernelH, kernelW, group);
// dequant input and quant output
if(mWeightQuant == false && dataType != QNN_DATATYPE_FLOAT_16 && dataType != QNN_DATATYPE_FLOAT_32){
return this->onEncodeQuantDequantConv(inputs[0], outputs[0], n, ic, oc);
}
if (common->relu() || common->relu6()) {
this->createStageTensor("ReluTensor", dataType, getNHWCShape(outputs[0]), outputs[0]);
}
// add nodes
{
if (common->relu() || common->relu6()) {
// Stage one
{
mNodeType = "Conv2d";
std::string name = mNodeName + "_conv";
mParams.push_back(*(mParamTensorWrappers[0]->getNativeParam())); // stride
mParams.push_back(*(mParamTensorWrappers[1]->getNativeParam())); // pad_amount
mParams.push_back(*(mParamTensorWrappers[2]->getNativeParam())); // dilation
mParams.push_back(*(mParamScalarWrappers[0]->getNativeParam())); // group
mInputs.push_back(*(mBackend->getNativeTensor(inputs[0]))); // input
mInputs.push_back(*(mTempTensorWrappers[0]->getNativeTensor())); // weight
mInputs.push_back(*(mTempTensorWrappers[1]->getNativeTensor())); // bias
mOutputs.push_back(*(mTempTensorWrappers[2]->getNativeTensor())); // stage tensor
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
// Stage two
{
mNodeType.clear();
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = common->relu6() ? "Relu6" : "Relu";
std::string name = mNodeName + "_relu";
mInputs.push_back(*(mTempTensorWrappers[2]->getNativeTensor())); // stage tensor
mOutputs.push_back(*(mBackend->getNativeTensor(outputs[0]))); // output
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
} else {
if(mIsMatMul && n > 1) {
auto num = closest_factors(n);
{
this->createStageTensor("InputReshapeTensor", dataType, std::vector<int>({1, num.first, num.second, ic}), inputs[0]);
}
{
this->createStageTensor("OutputReshapeTensor", dataType, std::vector<int>({1, num.first, num.second, oc}), outputs[0]);
}
#ifdef QNN_VERBOSE
MNN_PRINT("Matmul2Conv, start reshape batch:%d -> %dx%d\n", n, num.first, num.second);
#endif
// reshape input
{
std::string name = mNodeName + "_input_reshape";
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = "Reshape";
mInputs.push_back(*(mBackend->getNativeTensor(inputs[0]))); // input0
mOutputs.push_back(*(mTempTensorWrappers[2]->getNativeTensor())); // temp input
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
// conv2d
{
std::string name = mNodeName;
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = "Conv2d";
mParams.push_back(*(mParamTensorWrappers[0]->getNativeParam())); // stride
mParams.push_back(*(mParamTensorWrappers[1]->getNativeParam())); // pad_amount
mParams.push_back(*(mParamTensorWrappers[2]->getNativeParam())); // dilation
mParams.push_back(*(mParamScalarWrappers[0]->getNativeParam())); // group
mInputs.push_back(*(mTempTensorWrappers[2]->getNativeTensor())); // input0
mInputs.push_back(*(mTempTensorWrappers[0]->getNativeTensor())); // weight
mInputs.push_back(*(mTempTensorWrappers[1]->getNativeTensor())); // bias
mOutputs.push_back(*(mTempTensorWrappers[3]->getNativeTensor())); // temp output
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
// reshape output
{
std::string name = mNodeName + "_output_reshape";
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = "Reshape";
mInputs.push_back(*(mTempTensorWrappers[3]->getNativeTensor())); // temp output
mOutputs.push_back(*(mBackend->getNativeTensor(outputs[0]))); // input0
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
return NO_ERROR;
}
mNodeType = "Conv2d";
mParams.push_back(*(mParamTensorWrappers[0]->getNativeParam())); // stride
mParams.push_back(*(mParamTensorWrappers[1]->getNativeParam())); // pad_amount
mParams.push_back(*(mParamTensorWrappers[2]->getNativeParam())); // dilation
mParams.push_back(*(mParamScalarWrappers[0]->getNativeParam())); // group
mInputs.push_back(*(mBackend->getNativeTensor(inputs[0]))); // input
mInputs.push_back(*(mTempTensorWrappers[0]->getNativeTensor())); // weight
mInputs.push_back(*(mTempTensorWrappers[1]->getNativeTensor())); // bias
mOutputs.push_back(*(mBackend->getNativeTensor(outputs[0]))); // output
mBackend->addNodeToGraph(mOpConfigVersion, mNodeName.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
}
return NO_ERROR;
}
ErrorCode QNNConvolution::onEncodeQuantDequantConv(Tensor *input, Tensor *output, const int n, const int ic, const int oc) {
auto conv2D = mOp->main_as_Convolution2D();
auto common = conv2D->common();
Qnn_DataType_t dataType = QNN_DATATYPE_FLOAT_32;
if(mBackend->getUseFP16()){
dataType = QNN_DATATYPE_FLOAT_16;
}
// create dequant input stage tensor
this->createStageTensor("DequantInput", dataType, getNHWCShape(input)); // mTempTensorWrappers[2]
this->createStageTensor("QuantOutput", dataType, getNHWCShape(output)); // mTempTensorWrappers[3]
// add nodes
{
// dequant input
{
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = "Dequantize";
std::string name = mNodeName + "_dequant_input";
mInputs.push_back(*(mBackend->getNativeTensor(input))); // input
mOutputs.push_back(*(mTempTensorWrappers[2]->getNativeTensor())); // DequantInput
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
if (common->relu() || common->relu6()) {
this->createStageTensor("ReluTensor", dataType, getNHWCShape(output)); // mTempTensorWrappers[4]
// Stage one
{
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = "Conv2d";
std::string name = mNodeName + "_conv";
mParams.push_back(*(mParamTensorWrappers[0]->getNativeParam())); // stride
mParams.push_back(*(mParamTensorWrappers[1]->getNativeParam())); // pad_amount
mParams.push_back(*(mParamTensorWrappers[2]->getNativeParam())); // dilation
mParams.push_back(*(mParamScalarWrappers[0]->getNativeParam())); // group
mInputs.push_back(*(mTempTensorWrappers[2]->getNativeTensor())); // DequantInput
mInputs.push_back(*(mTempTensorWrappers[0]->getNativeTensor())); // weight
mInputs.push_back(*(mTempTensorWrappers[1]->getNativeTensor())); // bias
mOutputs.push_back(*(mTempTensorWrappers[4]->getNativeTensor())); // ReluTensor
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
// Stage two
{
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = common->relu6() ? "Relu6" : "Relu";
std::string name = mNodeName + "_relu";
mInputs.push_back(*(mTempTensorWrappers[4]->getNativeTensor())); // ReluTensor
mOutputs.push_back(*(mTempTensorWrappers[3]->getNativeTensor())); // QuantOutput
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
} else {
if(mIsMatMul && n > 1) {
auto num = closest_factors(n);
this->createStageTensor("InputReshapeTensor", dataType, std::vector<int>({1, num.first, num.second, ic})); // mTempTensorWrappers[4]
this->createStageTensor("OutputReshapeTensor", dataType, std::vector<int>({1, num.first, num.second, oc})); // mTempTensorWrappers[5]
#ifdef QNN_VERBOSE
MNN_PRINT("Matmul2Conv, start reshape batch:%d -> %dx%d\n", n, num.first, num.second);
#endif
// reshape input
{
std::string name = mNodeName + "_input_reshape";
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = "Reshape";
mInputs.push_back(*(mTempTensorWrappers[2]->getNativeTensor())); // DequantInput
mOutputs.push_back(*(mTempTensorWrappers[4]->getNativeTensor())); // InputReshapeTensor
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
// conv2d
{
std::string name = mNodeName;
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = "Conv2d";
mParams.push_back(*(mParamTensorWrappers[0]->getNativeParam())); // stride
mParams.push_back(*(mParamTensorWrappers[1]->getNativeParam())); // pad_amount
mParams.push_back(*(mParamTensorWrappers[2]->getNativeParam())); // dilation
mParams.push_back(*(mParamScalarWrappers[0]->getNativeParam())); // group
mInputs.push_back(*(mTempTensorWrappers[4]->getNativeTensor())); // InputReshapeTensor
mInputs.push_back(*(mTempTensorWrappers[0]->getNativeTensor())); // weight
mInputs.push_back(*(mTempTensorWrappers[1]->getNativeTensor())); // bias
mOutputs.push_back(*(mTempTensorWrappers[5]->getNativeTensor())); // OutputReshapeTensor
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
// reshape output
{
std::string name = mNodeName + "_output_reshape";
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = "Reshape";
mInputs.push_back(*(mTempTensorWrappers[5]->getNativeTensor())); // OutputReshapeTensor
mOutputs.push_back(*(mTempTensorWrappers[3]->getNativeTensor())); // QuantOutput
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
} else{
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = "Conv2d";
mParams.push_back(*(mParamTensorWrappers[0]->getNativeParam())); // stride
mParams.push_back(*(mParamTensorWrappers[1]->getNativeParam())); // pad_amount
mParams.push_back(*(mParamTensorWrappers[2]->getNativeParam())); // dilation
mParams.push_back(*(mParamScalarWrappers[0]->getNativeParam())); // group
mInputs.push_back(*(mTempTensorWrappers[2]->getNativeTensor())); // DequantInput
mInputs.push_back(*(mTempTensorWrappers[0]->getNativeTensor())); // weight
mInputs.push_back(*(mTempTensorWrappers[1]->getNativeTensor())); // bias
mOutputs.push_back(*(mTempTensorWrappers[3]->getNativeTensor())); // QuantOutput
mBackend->addNodeToGraph(mOpConfigVersion, mNodeName.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
}
// Quant output
{
auto QuantOutputTensor = mTempTensorWrappers[3]->getNativeTensor();
if(mBackend->getUseFP16()){
this->createStageTensor("CastOutput", QNN_DATATYPE_FLOAT_32, getNHWCShape(output));
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = "Cast";
std::string name = mNodeName + "_Cast_Output";
mInputs.push_back(*(mTempTensorWrappers[3]->getNativeTensor())); // QuantOutput
mOutputs.push_back(*(mTempTensorWrappers.back()->getNativeTensor())); // CastOutput
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
QuantOutputTensor = mTempTensorWrappers.back()->getNativeTensor();
}
{
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = "Quantize";
std::string name = mNodeName + "_Quant_Output";
mInputs.push_back(*(QuantOutputTensor)); // stage tensor
mOutputs.push_back(*(mBackend->getNativeTensor(output))); // output
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
}
}
return NO_ERROR;
}
ErrorCode QNNConvolution::onEncodeFpAIntBMatMul(Tensor * input, Tensor * output, int n, int h, int w, int ic, int oc) {
// create parameters and stage tensors
auto conv2D = mOp->main_as_Convolution2D();
auto common = conv2D->common();
Qnn_DataType_t dataType = mBackend->getNativeTensor(input)->v1.dataType;
{
std::vector<uint32_t> tempInputShape = {(uint32_t) n * h * w , (uint32_t) ic};
std::vector<uint32_t> tempOutputShape = {(uint32_t) n * h * w , (uint32_t) oc};
this->createStageTensor("tempInput", dataType, tempInputShape);
this->createStageTensor("tempOutput", dataType, tempOutputShape);
// create weight and bias
{
Qnn_QuantizeParams_t weightQuantize{};
std::shared_ptr<ConvolutionCommon::Int8Common> quanCommon = ConvolutionCommon::load(mOp, this->backend(), false, true);
MNN_ASSERT(!quanCommon->asymmetric);
const int8_t * source = quanCommon->weight.get();
std::vector<int8_t> quantWeightData(oc * ic, 0);
if(quanCommon->canUseInt4){
for (int o = 0; o < oc; o++) {
for (int i = 0; i < ic; i++) {
uint32_t srcOffset = o * ic + i;
// Reorder weight to [ic, oc], to let 'transpose_1' = false
uint32_t dstOffset = i * oc + o;
if(srcOffset % 2 == 0){
quantWeightData[dstOffset] = ((source[srcOffset / 2] >> 4) & 0x0f) - 8;
}else{
quantWeightData[dstOffset] = (source[srcOffset / 2] & 0x0f) - 8;
}
}
}
}else{
// Reorder weight to [ic, oc], to let 'transpose_1' = false
for(int i = 0; i < ic; i++) {
for(int o = 0; o < oc; o++) {
quantWeightData[i * oc + o] = source[o * ic + i];
}
}
}
mDequantAlpha = quanCommon->alpha.get();
int totalCount = quanCommon->alpha.size();
mBlockSize = totalCount / oc;
int blockNum = ic / mBlockSize;
if(quanCommon->canUseInt4){
weightQuantize.encodingDefinition = QNN_DEFINITION_DEFINED;
weightQuantize.quantizationEncoding = QNN_QUANTIZATION_ENCODING_BW_AXIS_SCALE_OFFSET;
Qnn_BwAxisScaleOffset_t weightBWAxisScaleOffsetEncoding{};
weightBWAxisScaleOffsetEncoding.bitwidth = 4;
weightBWAxisScaleOffsetEncoding.axis = 0;
weightBWAxisScaleOffsetEncoding.numElements = oc;
mScale.resize(oc);
std::vector<int32_t> OffsetData(oc);
for (int i = 0; i < oc; i++) {
mScale[i] = mDequantAlpha[i];
}
weightBWAxisScaleOffsetEncoding.scales = mScale.data();
weightQuantize.bwAxisScaleOffsetEncoding = weightBWAxisScaleOffsetEncoding;
this->createStaticTensor("quantWeight", QNN_DATATYPE_SFIXED_POINT_8, {(uint32_t)ic, (uint32_t)oc}, (void *) quantWeightData.data(), weightQuantize);
std::function<void()> mReleaseWeightScaleOffset = [&](){
std::vector<float>().swap(mScale);
};
mBackend->pushReleaseFunc(mReleaseWeightScaleOffset);
}else{
weightQuantize.encodingDefinition = QNN_DEFINITION_DEFINED;
weightQuantize.quantizationEncoding = QNN_QUANTIZATION_ENCODING_AXIS_SCALE_OFFSET;
Qnn_AxisScaleOffset_t weightAxisScaleOffsetEncoding{};
weightAxisScaleOffsetEncoding.axis = 0;
weightAxisScaleOffsetEncoding.numScaleOffsets = oc;
mScaleOffsetData.resize(oc);
for (int i = 0; i < oc; i++) {
mScaleOffsetData[i].scale = mDequantAlpha[i];
mScaleOffsetData[i].offset = 0;
}
weightAxisScaleOffsetEncoding.scaleOffset = mScaleOffsetData.data();
weightQuantize.axisScaleOffsetEncoding = weightAxisScaleOffsetEncoding;
this->createStaticTensor("quantWeight", QNN_DATATYPE_SFIXED_POINT_8, {(uint32_t)ic, (uint32_t)oc}, (void *) quantWeightData.data(), weightQuantize);
std::function<void()> mReleaseWeightScaleOffset = [&](){
std::vector<Qnn_ScaleOffset_t>().swap(mScaleOffsetData);
};
mBackend->pushReleaseFunc(mReleaseWeightScaleOffset);
}
//create bias
this->createBias(dataType, oc, input, quanCommon);
}
if (common->relu() || common->relu6()) {
this->createStageTensor("ReluTensor", dataType, getNHWCShape(output));
}
}
// Stage One: reshape input
{
mNodeType = "Reshape";
std::string name = mNodeName + "_reshapeInput";
mParams.clear();
mInputs.clear();
mOutputs.clear();
mInputs.push_back(*(mBackend->getNativeTensor(input)));
mOutputs.push_back(*(mTempTensorWrappers[0]->getNativeTensor()));
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
// Stage Two: matmul
{
mNodeType = "MatMul";
std::string name = mNodeName + "_MatMul";
mParams.clear();
mInputs.clear();
mOutputs.clear();
mInputs.push_back(*(mTempTensorWrappers[0]->getNativeTensor())); // tempInput
mInputs.push_back(*(mTempTensorWrappers[2]->getNativeTensor())); // weight
mInputs.push_back(*(mTempTensorWrappers[3]->getNativeTensor())); // bias
mOutputs.push_back(*(mTempTensorWrappers[1]->getNativeTensor())); // tempOutput
// mOutputs.push_back(*(mBackend->getNativeTensor(output)));
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
// Stage Three: reshape output
{
mNodeType = "Reshape";
std::string name = mNodeName + "_reshapeOutput";
mParams.clear();
mInputs.clear();
mOutputs.clear();
mInputs.push_back(*(mTempTensorWrappers[1]->getNativeTensor()));
if (common->relu() || common->relu6()){
mOutputs.push_back(*(mTempTensorWrappers[4]->getNativeTensor())); //ReluTensor
}else{
mOutputs.push_back(*(mBackend->getNativeTensor(output)));
}
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
// Stage Four: relu or relu6
if (common->relu() || common->relu6()){
mNodeType.clear();
mParams.clear();
mInputs.clear();
mOutputs.clear();
mNodeType = common->relu6() ? "Relu6" : "Relu";
std::string name = mNodeName + "_relu";
mInputs.push_back(*(mTempTensorWrappers[4]->getNativeTensor())); // ReluTensor
mOutputs.push_back(*(mBackend->getNativeTensor(output))); // output
mBackend->addNodeToGraph(mOpConfigVersion, name.c_str(), mPackageName.c_str(), mNodeType.c_str(), mParams, mInputs, mOutputs);
}
return NO_ERROR;
}
bool QNNConvolution::createWeightAndBias(Qnn_DataType_t dataType, const Tensor *input, int oc, int ic, int kernelH, int kernelW, int group) {
if(mWeightQuant){
Qnn_QuantizeParams_t weightQuantize{};
std::shared_ptr<ConvolutionCommon::Int8Common> quanCommon = ConvolutionCommon::load(mOp, this->backend(), false, true);
if(quanCommon->asymmetric) {
MNN_ERROR("[Error]: Qnn weight quant only support symmetric currently\n");
return false;
}
const int8_t * source = quanCommon->weight.get();
std::vector<int8_t> quantWeightData(oc * (ic / group) * kernelH * kernelW, 0);
if(quanCommon->canUseInt4){
for (int o = 0; o < oc; o++) {
for (int i = 0; i < ic/group; i++) {
for (int h = 0; h < kernelH; h++) {
for (int w = 0; w < kernelW; w++) {
uint32_t srcOffset = w + kernelW * (h + kernelH * (i + ic/group * o));
uint32_t dstOffset = o + oc * (i + ic/group * (w + kernelW * h));
if(srcOffset % 2 == 0){
quantWeightData[dstOffset] = ((source[srcOffset / 2] >> 4) & 0x0f) - 8;
}else{
quantWeightData[dstOffset] = (source[srcOffset / 2] & 0x0f) - 8;
}
}
}
}
}
}else{
convertWeight(source, (int8_t *) quantWeightData.data(), oc, ic/group, kernelH, kernelW);
}
mDequantAlpha = quanCommon->alpha.get();
int totalCount = quanCommon->alpha.size();
mBlockSize = totalCount / oc;
// Todo: result is wrong, need to verify
if(mBlockSize > 1){
Qnn_QuantizeParams_t weightQuantize{};
weightQuantize.encodingDefinition = QNN_DEFINITION_DEFINED;
weightQuantize.quantizationEncoding = QNN_QUANTIZATION_ENCODING_BLOCKWISE_EXPANSION;
weightBlockwiseExpansionEncoding.axis = 3;
weightBlockwiseExpansionEncoding.numBlocksPerAxis = mBlockSize;
weightBlockwiseExpansionEncoding.blockScaleBitwidth = 4;
weightBlockwiseExpansionEncoding.blockScaleStorageType = QNN_BLOCKWISE_EXPANSION_BITWIDTH_SCALE_STORAGE_8;
mBlockScale.resize(oc * mBlockSize);
mScaleOffsetData.resize(oc);
for (int i = 0; i < oc; i++) {
float maxscale = -std::numeric_limits<float>::max();
for(int j = 0; j < mBlockSize; ++j){
if(mDequantAlpha[i * mBlockSize + j] > maxscale){
maxscale = mDequantAlpha[i * mBlockSize + j];
}
}
float blockScale = maxscale / 16.0f;
for(int j = 0; j < mBlockSize; ++j){
int quantBlock = round(mDequantAlpha[i * mBlockSize + j] / blockScale);
mBlockScale[i * mBlockSize + j] = (uint8_t)std::min(std::max(quantBlock, 1), 16);
}
mScaleOffsetData[i].scale = blockScale;
mScaleOffsetData[i].offset = 0;
}
weightBlockwiseExpansionEncoding.scaleOffsets = mScaleOffsetData.data();
weightBlockwiseExpansionEncoding.blocksScale8 = mBlockScale.data();
weightQuantize.blockwiseExpansion = &weightBlockwiseExpansionEncoding;
this->createStaticTensor("quantWeight", QNN_DATATYPE_SFIXED_POINT_8, {(uint32_t)kernelH, (uint32_t)kernelW, (uint32_t)ic / (uint32_t)group, (uint32_t)oc}, (void *) quantWeightData.data(), weightQuantize);
std::function<void()> mReleaseWeightScaleOffset = [&](){
std::vector<Qnn_ScaleOffset_t>().swap(mScaleOffsetData);
};
mBackend->pushReleaseFunc(mReleaseWeightScaleOffset);
std::function<void()> mReleaseBlockScale = [&](){
std::vector<uint8_t>().swap(mBlockScale);
};
mBackend->pushReleaseFunc(mReleaseBlockScale);
}else if(quanCommon->canUseInt4){
weightQuantize.encodingDefinition = QNN_DEFINITION_DEFINED;
weightQuantize.quantizationEncoding = QNN_QUANTIZATION_ENCODING_BW_AXIS_SCALE_OFFSET;
Qnn_BwAxisScaleOffset_t weightBWAxisScaleOffsetEncoding{};
weightBWAxisScaleOffsetEncoding.bitwidth = 4;
weightBWAxisScaleOffsetEncoding.axis = 3;
weightBWAxisScaleOffsetEncoding.numElements = oc;
mScale.resize(oc);
std::vector<int32_t> OffsetData(oc);
for (int i = 0; i < oc; i++) {
mScale[i] = mDequantAlpha[i];
}
weightBWAxisScaleOffsetEncoding.scales = mScale.data();
weightQuantize.bwAxisScaleOffsetEncoding = weightBWAxisScaleOffsetEncoding;
this->createStaticTensor("quantWeight", QNN_DATATYPE_SFIXED_POINT_8, {(uint32_t)kernelH, (uint32_t)kernelW, (uint32_t)ic / (uint32_t)group, (uint32_t)oc}, (void *) quantWeightData.data(), weightQuantize);
std::function<void()> mReleaseWeightScaleOffset = [&](){
std::vector<float>().swap(mScale);
};
mBackend->pushReleaseFunc(mReleaseWeightScaleOffset);
}else{
weightQuantize.encodingDefinition = QNN_DEFINITION_DEFINED;
weightQuantize.quantizationEncoding = QNN_QUANTIZATION_ENCODING_AXIS_SCALE_OFFSET;
Qnn_AxisScaleOffset_t weightAxisScaleOffsetEncoding{};
weightAxisScaleOffsetEncoding.axis = 3;
weightAxisScaleOffsetEncoding.numScaleOffsets = oc;
mScaleOffsetData.resize(oc);
for (int i = 0; i < oc; i++) {
mScaleOffsetData[i].scale = mDequantAlpha[i];
mScaleOffsetData[i].offset = 0;
}
weightAxisScaleOffsetEncoding.scaleOffset = mScaleOffsetData.data();
weightQuantize.axisScaleOffsetEncoding = weightAxisScaleOffsetEncoding;
this->createStaticTensor("quantWeight", QNN_DATATYPE_SFIXED_POINT_8, {(uint32_t)kernelH, (uint32_t)kernelW, (uint32_t)ic / (uint32_t)group, (uint32_t)oc}, (void *) quantWeightData.data(), weightQuantize);
std::function<void()> mReleaseWeightScaleOffset = [&](){
std::vector<Qnn_ScaleOffset_t>().swap(mScaleOffsetData);
};
mBackend->pushReleaseFunc(mReleaseWeightScaleOffset);
}
this->createBias(dataType, oc, input, quanCommon);
} else {
std::vector<float> weightData;
const float* source = nullptr;
int weightElementNum = 0;
std::shared_ptr<ConvolutionCommon::Int8Common> quanWeight;
ConvolutionCommon::getConvParameters(&quanWeight, mBackend, mOp, &source, &weightElementNum);
// oc ic h w ---> h w ic oc
weightData.resize(weightElementNum);
convertWeight(source, (float *) weightData.data(), oc, ic/group, kernelH, kernelW);
Qnn_DataType_t floatDatatype = QNN_DATATYPE_FLOAT_32;
if(mBackend->getUseFP16()){
floatDatatype = QNN_DATATYPE_FLOAT_16;
}
this->createStaticFloatTensor("weight", floatDatatype, {(uint32_t)kernelH, (uint32_t)kernelW, (uint32_t)ic / (uint32_t)group, (uint32_t)oc}, weightData.data());
this->createBias(dataType, oc, input, nullptr);
}
return NO_ERROR;
}
void QNNConvolution::createBias(Qnn_DataType_t dataType, int oc, const Tensor *input, std::shared_ptr<ConvolutionCommon::Int8Common> quanCommon) {
int biasElementNum = oc;
if(dataType != QNN_DATATYPE_FLOAT_16 && dataType != QNN_DATATYPE_FLOAT_32 && mWeightQuant){
mDequantAlpha = quanCommon->alpha.get();
float inputScale = mBackend->getNativeTensor(input)->v1.quantizeParams.scaleOffsetEncoding.scale;
int inputOffset = mBackend->getNativeTensor(input)->v1.quantizeParams.scaleOffsetEncoding.offset;
std::vector<int> biasData;
biasData.resize(biasElementNum, 0);
Qnn_QuantizeParams_t biasQuantize{};
biasQuantize.encodingDefinition = QNN_DEFINITION_DEFINED;
biasQuantize.quantizationEncoding = QNN_QUANTIZATION_ENCODING_AXIS_SCALE_OFFSET;
Qnn_AxisScaleOffset_t biasAxisScaleOffsetEncoding{};
biasAxisScaleOffsetEncoding.axis = 0;
biasAxisScaleOffsetEncoding.numScaleOffsets = biasElementNum;
mBiasScaleOffsetData.resize(biasElementNum);
auto bias = mOp->main_as_Convolution2D()->bias();
auto biasPtr = (float*)bias->data();
if (nullptr != bias) {
for(int i = 0; i < biasElementNum; ++i){
float biasScale = inputScale * mDequantAlpha[i];
mBiasScaleOffsetData[i].scale = biasScale;
mBiasScaleOffsetData[i].offset = 0;
if(biasPtr[i] == 0.0f){
biasData[i] = 0;
} else{
biasData[i] = (int)(biasPtr[i] / biasScale);
}
}
}
biasAxisScaleOffsetEncoding.scaleOffset = mBiasScaleOffsetData.data();
biasQuantize.axisScaleOffsetEncoding = biasAxisScaleOffsetEncoding;
this->createStaticTensor("bias", QNN_DATATYPE_SFIXED_POINT_32, {(uint32_t)biasElementNum}, biasData.data(), biasQuantize);
std::function<void()> mReleaseBiasScaleOffset = [&](){
std::vector<Qnn_ScaleOffset_t>().swap(mBiasScaleOffsetData);
};
mBackend->pushReleaseFunc(mReleaseBiasScaleOffset);
}else{
std::vector<float> biasData;
biasData.resize(biasElementNum, 0);
auto bias = mOp->main_as_Convolution2D()->bias();
if (nullptr != bias) {
::memcpy((void *)biasData.data(), (void *)bias->data(), biasElementNum * sizeof(float));
}
Qnn_DataType_t floatDatatype = QNN_DATATYPE_FLOAT_32;
if(mBackend->getUseFP16()){
floatDatatype = QNN_DATATYPE_FLOAT_16;
}
this->createStaticFloatTensor("bias", floatDatatype, {(uint32_t)oc}, biasData.data());
}
}
class QNNConvolutionCreator : public QnnBackend::Creator {
public:
virtual QNNCommonExecution * onCreate(const std::vector<Tensor*>& inputs, const std::vector<Tensor*>& outputs, const MNN::Op* op,
Backend* backend) const override {
if (inputs.size() > 1) {
MNN_ERROR("QNN only support single conv input\n");
return nullptr;
}
return new QNNConvolution(backend, op);
}
};
REGISTER_QNN_OP_CREATOR(QNNConvolutionCreator, OpType_Convolution)
#endif
} // end namespace QNN
} // end namespace MNN