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MNN/source/backend/cpu/CPUConvolutionDepthwise.cpp

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//
// CPUConvolutionDepthwise.cpp
// MNN
//
// Created by MNN on 2018/07/20.
// Copyright © 2018, Alibaba Group Holding Limited
//
#include "backend/cpu/CPUConvolutionDepthwise.hpp"
#include <string.h>
#include "core/Concurrency.h"
#include "backend/cpu/compute/Int8FunctionsOpt.h"
#include "core/Macro.h"
#include "core/TensorUtils.hpp"
#include "backend/cpu/compute/CommonOptFunction.h"
#include "backend/cpu/compute/ConvOpt.h"
#include "backend/cpu/compute/ConvolutionDepthwise3x3.hpp"
namespace MNN {
CPUConvolutionDepthwise::FloatExecution::FloatExecution(const Convolution2DCommon* common, Backend* b,
const float* originWeight, size_t originWeightSize,
const float* bias, size_t biasSize)
: MNN::CPUConvolution(common, b) {
auto layer = common;
mOrigin.reset(new BasicFloatExecution(common, b));
mResource.reset(new Resource);
mResource->backend = backend();
auto core = static_cast<CPUBackend*>(b)->functions();
int bytes = core->bytes;
int unit = core->pack;
int kw = layer->kernelX();
int kh = layer->kernelY();
int outputCount = (int)biasSize;
int depthQuad = UP_DIV(outputCount, unit);
int kernelSize = depthQuad * unit * kw * kh;
mResource->mWeight.reset(Tensor::createDevice<uint8_t>(std::vector<int>{kernelSize * bytes}));
bool success = b->onAcquireBuffer(mResource->mWeight.get(), Backend::STATIC);
if (!success) {
MNN_ERROR("Error for alloc memory for CPUConvolutionDepthwise\n");
mValid = false;
return;
}
success = mResource->copyBiasAlign(bias, biasSize);
if (!success) {
mValid = false;
return;
}
const float* tempWeight = originWeight;
// Reorder weight from whc -> pwhc4
auto weight = mResource->mWeight->host<float>();
int offset[] = {
(int)(kh * kw),
(int)(kh * kw)
};
if (bytes < 4) {
AutoStorage<uint8_t> tempW(kh * kw * outputCount * bytes);
if (tempW.get() == nullptr) {
mValid = false;
return;
}
core->MNNFp32ToLowp(tempWeight, (int16_t*)tempW.get(), kh * kw * outputCount);
core->MNNPackCUnit(weight, (const float*)tempW.get(), kh * kw, outputCount, offset);
} else {
core->MNNPackCUnit(weight, tempWeight, kh * kw, outputCount, offset);
}
}
CPUConvolutionDepthwise::FloatExecution::~FloatExecution() {
// Do nothing
}
bool CPUConvolutionDepthwise::FloatExecution::onClone(Backend* bn, const Op* op, Execution** dst) {
if (nullptr == dst) {
return true;
}
auto dstExe = new CPUConvolutionDepthwise::FloatExecution(mResource, op->main_as_Convolution2D()->common(), bn);
*dst = dstExe;
return true;
}
ErrorCode CPUConvolutionDepthwise::MultiInputFloatExecution::onResize(const std::vector<Tensor*>& inputs,
const std::vector<Tensor*>& outputs) {
auto layer = mCommon;
auto kw = layer->kernelX();
auto kh = layer->kernelY();
auto core = static_cast<CPUBackend*>(backend())->functions();
int bytes = core->bytes;
int unit = core->pack;
auto ic4 = UP_DIV(inputs[0]->channel(), unit);
mWeight.reset(Tensor::createDevice<uint8_t>({ic4, kh, kw, unit * bytes}));
mBias.reset(Tensor::createDevice<uint8_t>({ic4 * unit * bytes}));
mTempInputs = {inputs[0], mWeight.get(), mBias.get()};
bool success = backend()->onAcquireBuffer(mWeight.get(), Backend::DYNAMIC);
success = success && backend()->onAcquireBuffer(mBias.get(), Backend::DYNAMIC);
if (!success) {
return OUT_OF_MEMORY;
}
auto code = CPUConvolutionDepthwise::BasicFloatExecution::onResize(mTempInputs, outputs);
backend()->onReleaseBuffer(mWeight.get(), Backend::DYNAMIC);
backend()->onReleaseBuffer(mBias.get(), Backend::DYNAMIC);
return code;
}
ErrorCode CPUConvolutionDepthwise::MultiInputFloatExecution::onExecute(const std::vector<Tensor*>& inputs,
const std::vector<Tensor*>& outputs) {
auto kh = mWeight->length(1);
auto kw = mWeight->length(2);
// Reorder weight from whc -> pwhc4
auto outputCount = inputs[0]->channel();
auto weight = mWeight->host<float>();
auto tempWeight = inputs[1]->host<float>();
auto core = static_cast<CPUBackend*>(backend())->functions();
int bytes = core->bytes;
int unit = core->pack;
int offset[] = {
(int)(kh * kw),
(int)(kh * kw)
};
core->MNNPackCUnit(weight, tempWeight, kh * kw, outputCount, offset);
::memset(mBias->host<float>(), 0, mBias->size());
if (inputs.size() > 2) {
::memcpy(mBias->host<float>(), inputs[2]->host<float>(), outputCount * bytes);
}
return CPUConvolutionDepthwise::BasicFloatExecution::onExecute(mTempInputs, outputs);
}
ErrorCode CPUConvolutionDepthwise::BasicFloatExecution::onResize(const std::vector<Tensor*>& inputs,
const std::vector<Tensor*>& outputs) {
CPUConvolution::onResize(inputs, outputs);
auto layer = mCommon;
auto core = static_cast<CPUBackend*>(backend())->functions();
int bytes = core->bytes;
int unit = core->pack;
auto unitFunc = core->MNNConvRunForUnitDepthWise;
auto lineFunc = core->MNNConvRunForLineDepthwise;
auto postFunc = core->MNNAxByClampBroadcastUnit;
auto inputTensor = inputs[0];
auto outputTensor = outputs[0];
int src_width = inputTensor->width();
int src_height = inputTensor->height();
int dst_width = outputTensor->width();
int dst_height = outputTensor->height();
int dst_depth_quad = UP_DIV(layer->outputCount(), unit);
int strideY = layer->strideY();
int strideX = layer->strideX();
int dilateX = layer->dilateX();
int dilateY = layer->dilateY();
int kernel_height = layer->kernelY();
int kernel_width = layer->kernelX();
int padX = mPadX;
int padY = mPadY;
if (src_width == 1 && dst_width == 1 && dst_height > 1) {
// Swap x, y
dst_width = dst_height;
dst_height = 1;
padX = mPadY;
padY = mPadX;
strideX = strideY;
strideY = 1;// Don't need stride
src_width = src_height;
src_height = 1;
dilateX = dilateY;
dilateY = 1;
kernel_width = kernel_height;
kernel_height = 1;
}
int dst_z_step = dst_width * dst_height * unit;
int src_z_step = src_width * src_height * unit;
int dst_y_step = dst_width * unit;
int src_y_step = src_width * unit;
int weight_z_step = kernel_height * kernel_width * unit;
int dilateY_step = dilateY * src_width * unit;
int dilateX_step = dilateX * unit;
// Compute Mid Rect
int l = 0, t = 0, r = dst_width, b = dst_height;
for (; l * strideX - padX < 0 && l < dst_width; l++) {
// do nothing
}
for (; t * strideY - padY < 0 && t < dst_height; t++) {
// do nothing
}
for (; (r - 1) * strideX - padX + (kernel_width - 1) * dilateX >= src_width && r > l; r--) {
// do nothing
}
for (; (b - 1) * strideY - padY + (kernel_height - 1) * dilateY >= src_height && b > t; b--) {
// do nothing
}
auto postData = getPostParameters();
auto batch = inputs[0]->batch();
int total = batch * dst_depth_quad;
int numberThread = std::min(((CPUBackend*)backend())->threadNumber(), total);
auto runBasic = [=](uint8_t* dst_z, const uint8_t* src_z, const uint8_t* weight_dz, int L, int T, int R, int B) {
for (int dy = T; dy < B; ++dy) {
auto dst_y = dst_z + dy * dst_y_step * bytes;
int srcStartY = dy * strideY - padY;
const auto src_dy = src_z + srcStartY * src_y_step * bytes;
int sfy = ALIMAX(0, (UP_DIV(-srcStartY, dilateY)));
int efy = ALIMIN(kernel_height, UP_DIV(src_height - srcStartY, dilateY));
for (int dx = L; dx < R; ++dx) {
auto dst_x = dst_y + unit * dx * bytes;
int srcStartX = dx * strideX - padX;
const auto src_dx = src_dy + srcStartX * unit * bytes;
int sfx = ALIMAX(0, (UP_DIV(-srcStartX, dilateX)));
int efx = ALIMIN(kernel_width, UP_DIV(src_width - srcStartX, dilateX));
unitFunc((float*)dst_x, (const float*)(src_dx + (sfx * dilateX + sfy * dilateY * src_width) * unit * bytes),
(const float*)(weight_dz + unit * (kernel_width * sfy + sfx) * bytes), efx - sfx, efy - sfy,
unit * kernel_width, dilateX_step, dilateY_step);
}
}
};
auto biasP = inputs[2]->host<uint8_t>();
auto weightP = inputs[1]->host<uint8_t>();
mExecutor = [=](const uint8_t* srcOrigin, uint8_t* dstOrigin, int tId) {
for (int index = tId; index < total; index += numberThread) {
int dz = index / batch;
auto dst_z = dstOrigin + dst_z_step * index * bytes;
const auto src_z = srcOrigin + src_z_step * index * bytes;
auto bias_z = biasP + unit * dz * bytes;
const auto weight_dz = weightP + dz * weight_z_step * bytes;
runBasic(dst_z, src_z, weight_dz, 0, 0, dst_width, t);
runBasic(dst_z, src_z, weight_dz, 0, b, dst_width, dst_height);
runBasic(dst_z, src_z, weight_dz, 0, t, l, b);
runBasic(dst_z, src_z, weight_dz, r, t, dst_width, b);
if (r > l && b > t) {
lineFunc((float*)(dst_z + (t * dst_y_step + l * unit) * bytes),
(const float*)(src_z + ((t * strideY - padY) * src_y_step + (l * strideX - padX) * unit) * bytes),
(const float*)weight_dz, r - l, strideX * unit, kernel_width, kernel_height, dilateX_step,
dilateY_step, b - t, src_y_step * strideY, dst_y_step);
}
postFunc((float*)dst_z, (float*)dst_z, (const float*)bias_z, dst_width * dst_height, 0, 0, 1, postData.data());
}
};
mNumber = numberThread;
return NO_ERROR;
}
ErrorCode CPUConvolutionDepthwise::BasicFloatExecution::onExecute(const std::vector<Tensor*>& inputs,
const std::vector<Tensor*>& outputs) {
auto inputTensor = inputs[0];
auto outputTensor = outputs[0];
const auto srcOrigin = inputTensor->host<uint8_t>();
auto dstOrigin = outputTensor->host<uint8_t>();
MNN_CONCURRENCY_BEGIN(tId, mNumber) {
mExecutor(srcOrigin, dstOrigin, (int)tId);
}
MNN_CONCURRENCY_END();
return NO_ERROR;
}
class CPUConvolutionDepthwiseCreator : public CPUBackend::Creator {
public:
virtual Execution* onCreate(const std::vector<Tensor*>& inputs, const std::vector<Tensor*>& outputs,
const MNN::Op* op, Backend* backend) const {
auto conv2d = op->main_as_Convolution2D();
auto conv = op->main_as_Convolution2D()->common();
if (1 < inputs.size()) {
return new CPUConvolutionDepthwise::MultiInputFloatExecution(conv, backend);
}
const float* originWeight = nullptr;
size_t originWeightSize = 0;
std::shared_ptr<ConvolutionCommon::Int8Common> quanCommon;
if (nullptr != conv2d->quanParameter()) {
quanCommon = ConvolutionCommon::load(conv2d->quanParameter(), true);
// Back to float
originWeight = quanCommon->weightFloat.get();
originWeightSize = quanCommon->weightFloat.size();
}
if (nullptr == originWeight) {
originWeight = conv2d->weight()->data();
originWeightSize = conv2d->weight()->size();
}
if (inputs.empty()) {
return new CPUConvolutionDepthwise::FloatExecution(conv2d->common(), backend, originWeight, originWeightSize, conv2d->bias()->data(), conv2d->bias()->size());
}
auto core = static_cast<CPUBackend*>(backend)->functions();
if (conv->dilateX() == 1 && conv->dilateY() == 1 && conv->strideX() == 1 && conv->strideY() == 1 &&
conv->kernelX() == 3 && conv->kernelY() == 3 && outputs[0]->width() >= 2 && outputs[0]->height() >= 2 && core->MNNMultiAndDestTransformCommon23 != nullptr) {
return new ConvolutionDepthwise3x3(conv, backend, originWeight, originWeightSize, conv2d->bias()->data(), conv2d->bias()->size());
}
return new CPUConvolutionDepthwise::FloatExecution(conv2d->common(), backend, originWeight, originWeightSize, conv2d->bias()->data(), conv2d->bias()->size());
}
};
REGISTER_CPU_OP_CREATOR(CPUConvolutionDepthwiseCreator, OpType_ConvolutionDepthwise);
} // namespace MNN
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