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/* ******************************************************************************
*
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0.
*
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership.
* 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.
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************/
//
// @author Yurii Shyrma (iuriish@yahoo.com)
//
#include <ops/declarable/helpers/convolutions.h>
#include "cudnnUtils.h"
namespace sd {
namespace ops {
namespace platforms {
//////////////////////////////////////////////////////////////////////////
static void batchnormCUDNN(const LaunchContext* context, NDArray* input, NDArray* mean,
NDArray* variance, NDArray* gamma, NDArray* beta, NDArray* output,
const double epsilon, const bool isSpatialMode) {
// input, output -> 4D:nchw, 5D:ncdhw
// mean, variance, gamma, beta -> 1xCx1x1 for 4D and 1xCx1x1x1 for 5D for BATCHNORM_MODE_SPATIAL mode
// -> 1xCxHxW for 4D and 1xCxDxHxW for 5D for BATCHNORM_MODE_PER_ACTIVATION mode
const cudnnDataType_t dataType = cudnnDataType(input->dataType());
const LongType xRank = input->rankOf();
auto handle = reinterpret_cast<cudnnHandle_t*>(context->getCuDnnHandle());
CHECK_CUDNN_FAILURE(cudnnSetStream(*handle, *context->getCudaStream()));
const std::vector<int> xShape = input->getShapeAsVectorInt(); // input and output have same shapes
std::vector<int> paramsShape, paramsStrides; // mean, variance, gamma and beta have same shapes
if (isSpatialMode) { // 1xCx1x1
const int iC = static_cast<int>(mean->lengthOf());
const int stride0 = static_cast<int>(mean->strideAt(0));
paramsShape = xRank == 4 ? std::vector<int>({1, iC, 1, 1}) : std::vector<int>({1, iC, 1, 1, 1});
paramsStrides = xRank == 4 ? std::vector<int>({iC * stride0, stride0, 1, 1})
: std::vector<int>({iC * stride0, stride0, 1, 1, 1});
} else {
paramsShape = std::vector<int>(mean->getShapeAsVector().begin(), mean->getShapeAsVector().end());
paramsStrides = xRank == 4
? std::vector<int>({static_cast<int>(mean->strideAt(0)), static_cast<int>(mean->strideAt(1)), static_cast<int>(mean->strideAt(2)),
static_cast<int>(mean->strideAt(3))})
: std::vector<int>({static_cast<int>(mean->strideAt(0)), static_cast<int>(mean->strideAt(1)), static_cast<int>(mean->strideAt(2)),
static_cast<int>(mean->strideAt(3)), static_cast<int>(mean->strideAt(4))});
}
std::vector<int> xStrides = {static_cast<int>(input->strideAt(0)), static_cast<int>(input->strideAt(1)), static_cast<int>(input->strideAt(2)),
static_cast<int>(input->strideAt(3))};
std::vector<int> zStrides = {static_cast<int>(output->strideAt(0)), static_cast<int>(output->strideAt(1)), static_cast<int>(output->strideAt(2)),
static_cast<int>(output->strideAt(3))};
if (xRank > 4) { // 5D
xStrides.push_back((LongType)input->strideAt(4));
zStrides.push_back((LongType)output->strideAt(4));
}
cudnnTensorFormat_t format = CUDNN_TENSOR_NCHW;
// input descriptor
x.set(dataType, xRank, xShape.data(), xStrides.data());
// output descriptor
CudnnTensor z;
z.set(dataType, xRank, xShape.data(), zStrides.data());
// mean, variance, gamma and beta descriptor, the same descriptor for all of them
CudnnTensor params;
params.set(dataType, xRank, paramsShape.data(), paramsStrides.data());
// provide scaling parameters
const float alpha32(1), beta32(0);
const double alpha64(1), beta64(0);
const void* ptrAlpha =
output->sizeOfT() <= 4 ? reinterpret_cast<const void*>(&alpha32) : reinterpret_cast<const void*>(&alpha64);
const void* ptrBeta =
output->sizeOfT() <= 4 ? reinterpret_cast<const void*>(&beta32) : reinterpret_cast<const void*>(&beta64);
NDArray::prepareSpecialUse({output}, {input, mean, variance, gamma, beta});
// calculations
CHECK_CUDNN_FAILURE_MSG(
STRINGIZE(cudnnBatchNormalizationForwardInference),
cudnnBatchNormalizationForwardInference(
*handle, isSpatialMode ? CUDNN_BATCHNORM_SPATIAL : CUDNN_BATCHNORM_PER_ACTIVATION, ptrAlpha, ptrBeta, x,
input->specialBuffer(), z, output->specialBuffer(), params, gamma->specialBuffer(), beta->specialBuffer(),
mean->specialBuffer(), variance->specialBuffer(), epsilon));
auto cudaErr = cudaStreamSynchronize(*context->getCudaStream());
if (cudaErr != 0) throw cuda_exception::build("batchnormCUDNN: cudaStreamSynchronize failed !", cudaErr);
NDArray::registerSpecialUse({output}, {input, mean, variance, gamma, beta});
}
//////////////////////////////////////////////////////////////////////////
static void batchnormBpCUDNN(const LaunchContext* context, NDArray* input, NDArray* mean,
NDArray* variance, NDArray* gamma, NDArray* gradO, NDArray* gradI,
NDArray* gradG, NDArray* gradB, const double epsilon, const bool isSpatialMode) {
// input, gradO, gradI -> 4D:nchw, 5D:ncdhw
// mean, variance, gamma, beta, gradM, gradV, gradG, gradB -> 1xCx1x1 for 4D and 1xCx1x1x1 for 5D for
// BATCHNORM_MODE_SPATIAL mode
// -> 1xCxHxW for 4D and 1xCxDxHxW for 5D for
// BATCHNORM_MODE_PER_ACTIVATION mode
const cudnnDataType_t dataType = cudnnDataType(input->dataType());
const int xRank = input->rankOf();
auto handle = reinterpret_cast<cudnnHandle_t*>(context->getCuDnnHandle());
cudnnStatus_t err = cudnnSetStream(*handle, *context->getCudaStream());
const std::vector<int> xShape = input->getShapeAsVectorInt(); // input and output have same shapes
std::vector<int> paramsShape, paramsStrides; // mean, variance, gamma and beta have same shapes
if (isSpatialMode) { // 1xCx1x1
const int iC = static_cast<int>(mean->lengthOf());
const int stride0 = static_cast<int>(mean->strideAt(0));
paramsShape = xRank == 4 ? std::vector<int>({1, iC, 1, 1}) : std::vector<int>({1, iC, 1, 1, 1});
paramsStrides = xRank == 4 ? std::vector<int>({iC * stride0, stride0, 1, 1})
: std::vector<int>({iC * stride0, stride0, 1, 1, 1});
} else {
paramsShape = std::vector<int>(mean->getShapeAsVector().begin(), mean->getShapeAsVector().end());
paramsStrides = xRank == 4
? std::vector<int>({static_cast<int>(mean->strideAt(0)), static_cast<int>(mean->strideAt(1)), static_cast<int>(mean->strideAt(2)),
static_cast<int>(mean->strideAt(3))})
: std::vector<int>({static_cast<int>(mean->strideAt(0)), static_cast<int>(mean->strideAt(1)), static_cast<int>(mean->strideAt(2)),
static_cast<int>(mean->strideAt(3)), static_cast<int>(mean->strideAt(4))});
}
std::vector<int> xStrides = {static_cast<int>(input->strideAt(0)), static_cast<int>(input->strideAt(1)), static_cast<int>(input->strideAt(2)),
static_cast<int>(input->strideAt(3))};
std::vector<int> dxStrides = {static_cast<int>(gradI->strideAt(0)), static_cast<int>(gradI->strideAt(1)), static_cast<int>(gradI->strideAt(2)),
static_cast<int>(gradI->strideAt(3))};
std::vector<int> dzStrides = {static_cast<int>(gradO->strideAt(0)), static_cast<int>(gradO->strideAt(1)), static_cast<int>(gradO->strideAt(2)),
static_cast<int>(gradO->strideAt(3))};
if (xRank > 4) { // 5D
xStrides.push_back(static_cast<int>(input->strideAt(4)));
dxStrides.push_back(static_cast<int>(gradI->strideAt(4)));
dzStrides.push_back(static_cast<int>(gradO->strideAt(4)));
}
cudnnTensorFormat_t format = CUDNN_TENSOR_NCHW;
// input descriptor
CudnnTensor x;
x.set(dataType, xRank, xShape.data(), xStrides.data());
// gradO descriptor
CudnnTensor dz;
dz.set(dataType, xRank, xShape.data(), dzStrides.data());
// gradI descriptor
CudnnTensor dx;
dx.set(dataType, xRank, xShape.data(), dxStrides.data());
// mean, variance, gamma, gradG and gradB descriptor, the same descriptor for all of them
CudnnTensor params;
params.set(dataType, xRank, paramsShape.data(), paramsStrides.data());
// provide scaling parameters
const float alpha32(1), beta32(0);
double alpha64(1), beta64(0);
const void* ptrAlpha =
input->sizeOfT() <= 4 ? reinterpret_cast<const void*>(&alpha32) : reinterpret_cast<const void*>(&alpha64);
const void* ptrBeta =
input->sizeOfT() <= 4 ? reinterpret_cast<const void*>(&beta32) : reinterpret_cast<const void*>(&beta64);
NDArray::prepareSpecialUse({gradI, gradG, gradB}, {input, mean, variance, gamma, gradO});
// calculations
// TODO: we can use cache here
CHECK_CUDNN_FAILURE_MSG(
STRINGIZE(cudnnBatchNormalizationBackward),
cudnnBatchNormalizationBackward(*handle, isSpatialMode ? CUDNN_BATCHNORM_SPATIAL : CUDNN_BATCHNORM_PER_ACTIVATION,
ptrAlpha, ptrBeta, ptrAlpha, ptrBeta, x, input->specialBuffer(), dz,
gradO->specialBuffer(), dx, gradI->specialBuffer(), params,
gamma->specialBuffer(), gradG->specialBuffer(), gradB->specialBuffer(), epsilon,
nullptr /*mean->specialBuffer()*/, nullptr /*variance->specialBuffer()*/));
auto cudaErr = cudaStreamSynchronize(*context->getCudaStream());
if (cudaErr != 0) throw cuda_exception::build("batchnormBpCUDNN: cudaStreamSynchronize failed !", cudaErr);
NDArray::registerSpecialUse({gradI, gradG, gradB}, {input, mean, variance, gamma, gradO});
}
//////////////////////////////////////////////////////////////////////////
PLATFORM_IMPL(batchnorm, ENGINE_CUDA) {
auto input = INPUT_VARIABLE(0);
auto mean = INPUT_VARIABLE(1);
auto variance = INPUT_VARIABLE(2);
NDArray* gamma = nullptr;
NDArray* beta = nullptr;
auto output = OUTPUT_VARIABLE(0);
const bool applyScale = (bool)INT_ARG(0);
const bool applyOffset = (bool)INT_ARG(1);
const double epsilon = T_ARG(0);
if (applyScale) gamma = INPUT_VARIABLE(3);
if (applyOffset) beta = INPUT_VARIABLE(3 + (int)applyScale);
const int numOfIntArgs = block.getIArguments()->size();
const int inRank = input->rankOf();
// get axes args to normalize input array over
std::vector<int> axes;
if (numOfIntArgs > 2)
for (int i = 2; i < numOfIntArgs; ++i) axes.push_back(INT_ARG(i));
else
axes.push_back(inRank - 1); // default dimension to reduce along is last dimension
const int numOfAxes = axes.size();
REQUIRE_TRUE(numOfAxes <= inRank, 0,
"BATCHNORM CUDNN op: too big number of input axes to normalize over, expected number should be less or "
"equal to rank of input array, but got %i and %i correspondingly !",
numOfAxes, inRank);
// evaluate expected shape for mean, variance and gamma. These 3 arrays should have identical shapes
// for example if input shape is {2,3,4,5,6} and axes = {1,3}, then expected shape would be {1,3,1,5,1}, and if axes =
// {3}, then expected shape would be {5}
std::vector<LongType> expShape;
if (numOfAxes == 1)
expShape.push_back(input->sizeAt(axes[0]));
else { // get, for example, something like {1, inputDim1, 1, inputDim3, 1} if axes = {1, 3}
expShape = std::vector<LongType>(inRank, 1);
for (LongType i = 0; i < numOfAxes; ++i) expShape[axes[i]] = input->sizeAt(axes[i]);
}
REQUIRE_TRUE(mean->isSameShape(expShape), 0,
"BATCHNORM CUDNN op: wrong shape of mean array, expected is %s, but got %s instead !",
ShapeUtils::shapeAsString(expShape).c_str(), ShapeUtils::shapeAsString(mean).c_str());
REQUIRE_TRUE(variance->isSameShape(expShape), 0,
"BATCHNORM CUDNN op: wrong shape of variance array, expected is %s, but got %s instead !",
ShapeUtils::shapeAsString(expShape).c_str(), ShapeUtils::shapeAsString(variance).c_str());
if (gamma)
REQUIRE_TRUE(gamma->isSameShape(expShape), 0,
"BATCHNORM CUDNN op: wrong shape of gamma array, expected is %s, but got %s instead !",
ShapeUtils::shapeAsString(expShape).c_str(), ShapeUtils::shapeAsString(gamma).c_str());
if (beta)
REQUIRE_TRUE(beta->isSameShape(expShape), 0,
"BATCHNORM CUDNN op: wrong shape of beta array, expected is %s, but got %s instead !",
ShapeUtils::shapeAsString(expShape).c_str(), ShapeUtils::shapeAsString(beta).c_str());
// types of all input arrays should be the same
for (int i = 1; i < block.width(); ++i)
REQUIRE_TRUE(INPUT_VARIABLE(0)->dataType() == INPUT_VARIABLE(i)->dataType(), 0,
"BATCHNORM CUDNN op: types of all input arrays should be the same !");
// cudnn supports NCHW format only
const bool needPermut = axes.size() == 1 && mean->lengthOf() == input->sizeAt(-1);
std::unique_ptr<NDArray> tmpGamma = {}, tmpBeta = {}, tmpInput = {}, tmpOutput = {};
if (needPermut) { // if NHWC
std::vector<LongType> perm =
inRank == 4 ? std::vector<LongType>({0, 3, 1, 2}) : std::vector<LongType>({0, 4, 1, 2, 3}); // NHWC -> NCHW
tmpInput.reset(new NDArray(input->permute(perm)));
tmpOutput.reset(new NDArray(output->permute(perm)));
input = tmpInput.get();
output = tmpOutput.get();
}
// cudnn requires gamma and beta to be non-nullptr
if (!applyScale) {
tmpGamma.reset(new NDArray(mean));
gamma = tmpGamma.get();
*gamma = 1;
}
if (!applyOffset) {
tmpBeta.reset(new NDArray(mean));
beta = tmpBeta.get();
*beta = 0;
}
// calculations
batchnormCUDNN(block.launchContext(), input, mean, variance, gamma, beta, output, epsilon, axes.size() == 1);
return Status::OK;
}
//////////////////////////////////////////////////////////////////////////
PLATFORM_CHECK(batchnorm, ENGINE_CUDA) {
const bool applyScale = (bool)INT_ARG(0);
const bool applyOffset = (bool)INT_ARG(1);
NDArray* input = INPUT_VARIABLE(0);
NDArray* mean = INPUT_VARIABLE(1);
NDArray* variance = INPUT_VARIABLE(2);
NDArray* gamma = applyScale ? INPUT_VARIABLE(3) : nullptr;
NDArray* beta = applyOffset ? INPUT_VARIABLE(3 + (int)applyScale) : nullptr;
const int numOfIntArgs = block.getIArguments()->size();
const int xRank = input->rankOf();
// *********************************** //
// get axes args to normalize input array over
std::vector<int> axes;
if (numOfIntArgs > 2)
for (int i = 2; i < numOfIntArgs; ++i) axes.push_back(INT_ARG(i));
else
axes.push_back(xRank - 1); // default dimension to reduce along is last dimension
Requirements req("CUDNN BATCHNORM OP");
req.expectIn(makeInfoVariable(xRank, RANK_MSG_INPUT0), {4, 5}) &&
req.expectIn(makeInfoVariable(input->dataType(), TYPE_MSG_INPUT0),
{HALF, FLOAT32, DOUBLE}) &&
req.expectIn(makeInfoVariable(axes.size(), "axes.size()"), {1, 3, 4}) &&
req.expect(
makeShapeInfoVariable(mean, SHAPE_MSG_INPUT1), makeShapeInfoVariable(variance, SHAPE_MSG_INPUT2),
[](const decltype(mean)& l, const decltype(variance)& r) {
return shape::haveSameShapeAndStrides(l->shapeInfo(), r->shapeInfo());
},
EXPECTED_EQ_MSG);
if (gamma) {
req.expect(
makeShapeInfoVariable(gamma, SHAPE_MSG_INPUT_ "#gamma"), makeShapeInfoVariable(mean, SHAPE_MSG_INPUT1),
[](const decltype(gamma)& l, const decltype(mean)& r) {
return shape::haveSameShapeAndStrides(l->shapeInfo(), r->shapeInfo());
},
EXPECTED_EQ_MSG);
}
if (beta) {
req.expect(
makeShapeInfoVariable(beta, SHAPE_MSG_INPUT_ "#beta"), makeShapeInfoVariable(mean, SHAPE_MSG_INPUT1),
[](const decltype(beta)& l, const decltype(mean)& r) {
return shape::haveSameShapeAndStrides(l->shapeInfo(), r->shapeInfo());
},
EXPECTED_EQ_MSG);
}
if (axes.size() == 1) {
req.expectIn(makeInfoVariable(mean->lengthOf(), LENGTH_MSG_INPUT1), {-1, 1});
} else {
auto inputShapeModif = input->getShapeAsVector(); // [dim0,dim1,dim2,dim3] 4D or [dim0,dim1,dim2,dim3,dim4]
inputShapeModif[0] = 1;
// mean [1,dim1,dim2,dim3] 4D or [1,dim1,dim2,dim3,dim4]
req.expect(
makeShapeInfoVariable(mean, SHAPE_MSG_INPUT1),
makeShapeInfoVariable(inputShapeModif, SHAPE_MSG_INPUT_ "#expect"),
[](const decltype(mean)& l, const decltype(inputShapeModif)& r) { return l->isSameShape(r); }, EXPECTED_EQ_MSG);
}
req.logTheSuccess();
return req;
}
//////////////////////////////////////////////////////////////////////////
PLATFORM_IMPL(batchnorm_bp, ENGINE_CUDA) {
NDArray* input = INPUT_VARIABLE(0);
NDArray* mean = INPUT_VARIABLE(1);
NDArray* variance = INPUT_VARIABLE(2);
NDArray* gamma = nullptr;
NDArray* beta = nullptr;
NDArray* gradO = INPUT_VARIABLE(block.width() - 1); // next epsilon
NDArray* gradI = OUTPUT_VARIABLE(0);
NDArray* gradM = OUTPUT_VARIABLE(1);
NDArray* gradV = OUTPUT_VARIABLE(2);
NDArray* gradG = nullptr;
NDArray* gradB = nullptr;
const bool applyScale = (bool)INT_ARG(0);
const bool applyOffset = (bool)INT_ARG(1);
const float epsilon = T_ARG(0);
if (applyScale) {
gamma = INPUT_VARIABLE(3);
gradG = OUTPUT_VARIABLE(3);
}
if (applyOffset) {
beta = INPUT_VARIABLE(3 + (int)applyScale);
gradB = OUTPUT_VARIABLE(3 + (int)applyScale);
}
const int numOfIntArgs = block.getIArguments()->size();
const int inRank = input->rankOf();
// get axes args to normalize input array over
std::vector<int> axes;
if (numOfIntArgs > 2)
for (int i = 2; i < numOfIntArgs; ++i) axes.push_back(INT_ARG(i));
else
axes.push_back(inRank - 1); // default dimension to reduce along is last dimension
const int numOfAxes = axes.size();
REQUIRE_TRUE(numOfAxes <= inRank, 0,
"BATCHNORM_BP CUDNN op: too big number of input axes to normalize over, expected number should be less "
"or equal to rank of input array, but got %i and %i correspondingly !",
numOfAxes, inRank);
// evaluate expected shape for mean, variance and gamma. These 3 arrays should have identical shapes
// for example if input shape is {2,3,4,5,6} and axes = {1,3}, then expected shape would be {1,3,1,5,1}, and if axes =
// {3}, then expected shape would be {5}
std::vector<LongType> expShape;
if (numOfAxes == 1)
expShape.push_back(input->sizeAt(axes[0]));
else { // get, for example, something like {1, inputDim1, 1, inputDim3, 1} if axes = {1, 3}
expShape = std::vector<LongType>(inRank, 1);
for (LongType i = 0; i < numOfAxes; ++i) expShape[axes[i]] = input->sizeAt(axes[i]);
}
REQUIRE_TRUE(mean->isSameShape(expShape), 0,
"BATCHNORM_BP CUDNN op: wrong shape of mean array, expected is %s, but got %s instead !",
ShapeUtils::shapeAsString(expShape).c_str(), ShapeUtils::shapeAsString(mean).c_str());
REQUIRE_TRUE(variance->isSameShape(expShape), 0,
"BATCHNORM_BP CUDNN op: wrong shape of variance array, expected is %s, but got %s instead !",
ShapeUtils::shapeAsString(expShape).c_str(), ShapeUtils::shapeAsString(variance).c_str());
if (gamma)
REQUIRE_TRUE(gamma->isSameShape(expShape), 0,
"BATCHNORM_BP CUDNN op: wrong shape of gamma array, expected is %s, but got %s instead !",
ShapeUtils::shapeAsString(expShape).c_str(), ShapeUtils::shapeAsString(gamma).c_str());
if (beta)
REQUIRE_TRUE(beta->isSameShape(expShape), 0,
"BATCHNORM_BP CUDNN op: wrong shape of beta array, expected is %s, but got %s instead !",
ShapeUtils::shapeAsString(expShape).c_str(), ShapeUtils::shapeAsString(beta).c_str());
REQUIRE_TRUE(input->isSameShape(gradO), 0,
"BATCHNORM_BP CUDNN op: wrong shape of output gradients array, expected is %s, but got %s instead !",
ShapeUtils::shapeAsString(input).c_str(), ShapeUtils::shapeAsString(gradO).c_str());
// types of all input arrays should be the same (except gradO)
for (int i = 1; i < block.width() - 2; ++i)
REQUIRE_TRUE(INPUT_VARIABLE(0)->dataType() == INPUT_VARIABLE(i)->dataType(), 0,
"BATCHNORM_BP CUDNN op: types of arrays (input, mean, variance, gamma, beta) should be the same !");
// cudnn supports NCHW format only
const bool needPermut = axes.size() == 1 && mean->lengthOf() != input->sizeAt(1);
std::unique_ptr<NDArray> tmpGamma = {}, tmpGradG = {}, tmpGradB = {}, tmpInput = {}, tmpGradI = {}, tmpGradO = {};
if (needPermut) { // if NHWC
std::vector<LongType> perm =
inRank == 4 ? std::vector<LongType>({0, 3, 1, 2}) : std::vector<LongType>({0, 4, 1, 2, 3}); // NHWC -> NCHW
tmpInput.reset(new NDArray(input->permute(perm)));
tmpGradO.reset(new NDArray(gradO->permute(perm)));
tmpGradI.reset(new NDArray(gradI->permute(perm)));
input = tmpInput.get();
gradO = tmpGradO.get();
gradI = tmpGradI.get();
}
// cudnn requires gamma, gradG, gradB to be non-nullptr
if (!applyScale) {
tmpGamma.reset(new NDArray(mean));
tmpGradG.reset(new NDArray(mean));
gamma = tmpGamma.get();
gradG = tmpGradG.get();
*gamma = 1;
}
if (!applyOffset) {
tmpGradB.reset(new NDArray(mean));
gradB = tmpGradB.get();
}
// calculations
batchnormBpCUDNN(block.launchContext(), input, mean, variance, gamma, gradO, gradI, gradG, gradB, epsilon,
axes.size() == 1);
*gradM = 0; // put zeros so far
*gradV = 0; // put zeros so far
return Status::OK;
}
PLATFORM_CHECK(batchnorm_bp, ENGINE_CUDA) {
NDArray* input = INPUT_VARIABLE(0);
NDArray* mean = INPUT_VARIABLE(1);
NDArray* variance = INPUT_VARIABLE(2);
NDArray* gamma = nullptr;
NDArray* beta = nullptr;
NDArray* gradO = INPUT_VARIABLE(block.width() - 1); // next epsilon
NDArray* gradI = OUTPUT_VARIABLE(0);
NDArray* gradM = OUTPUT_VARIABLE(1);
NDArray* gradV = OUTPUT_VARIABLE(2);
NDArray* gradG = nullptr;
NDArray* gradB = nullptr;
const int numOfIntArgs = block.getIArguments()->size();
const int xRank = input->rankOf();
// *********************************** //
// get axes args to normalize input array over
std::vector<int> axes;
if (numOfIntArgs > 2)
for (int i = 2; i < numOfIntArgs; ++i) axes.push_back(INT_ARG(i));
else
axes.push_back(xRank - 1); // default dimension to reduce along is last dimension
Requirements req("CUDNN BATCHNORM_BP OP");
req.expectIn(makeInfoVariable(xRank, RANK_MSG_INPUT0), {4, 5}) &&
req.expectIn(makeInfoVariable(input->dataType(), TYPE_MSG_INPUT0),
{HALF, FLOAT32, DOUBLE}) &&
req.expectIn(makeInfoVariable(axes.size(), "axes.size()"), {1, 3, 4}) &&
req.expect(
makeShapeInfoVariable(mean, SHAPE_MSG_INPUT1), makeShapeInfoVariable(variance, SHAPE_MSG_INPUT2),
[](const decltype(mean)& l, const decltype(variance)& r) {
return shape::haveSameShapeAndStrides(l->shapeInfo(), r->shapeInfo());
},
EXPECTED_EQ_MSG);
if (gamma) {
req.expect(
makeShapeInfoVariable(gamma, SHAPE_MSG_INPUT_ "#gamma"), makeShapeInfoVariable(mean, SHAPE_MSG_INPUT1),
[](const decltype(gamma)& l, const decltype(mean)& r) {
return shape::haveSameShapeAndStrides(l->shapeInfo(), r->shapeInfo());
},
EXPECTED_EQ_MSG);
}
if (gradG) {
req.expect(
makeShapeInfoVariable(gradG, SHAPE_MSG_INPUT_ "#gradG"), makeShapeInfoVariable(mean, SHAPE_MSG_INPUT1),
[](const decltype(gradG)& l, const decltype(mean)& r) {
return shape::haveSameShapeAndStrides(l->shapeInfo(), r->shapeInfo());
},
EXPECTED_EQ_MSG);
}
if (gradB) {
req.expect(
makeShapeInfoVariable(gradB, SHAPE_MSG_INPUT_ "#gradB"), makeShapeInfoVariable(mean, SHAPE_MSG_INPUT1),
[](const decltype(gradB)& l, const decltype(mean)& r) {
return shape::haveSameShapeAndStrides(l->shapeInfo(), r->shapeInfo());
},
EXPECTED_EQ_MSG);
}
if (axes.size() == 1) {
// isFormatGood = mean->lengthOf() == input->sizeAt(1) || mean->lengthOf() == input->sizeAt(-1); // mean [C]
req.expectIn(makeInfoVariable(mean->lengthOf(), LENGTH_MSG_INPUT1), {-1, 1});
} else {
auto inputShapeModif = input->getShapeAsVector(); // [dim0,dim1,dim2,dim3] 4D or [dim0,dim1,dim2,dim3,dim4]
inputShapeModif[0] = 1;
// isFormatGood = mean->isSameShape(inputShapeModif); // mean [1,dim1,dim2,dim3] 4D or
// [1,dim1,dim2,dim3,dim4]
req.expect(
makeShapeInfoVariable(mean, SHAPE_MSG_INPUT1),
makeShapeInfoVariable(inputShapeModif, SHAPE_MSG_INPUT_ "#expect"),
[](const decltype(mean)& l, const decltype(inputShapeModif)& r) { return l->isSameShape(r); }, EXPECTED_EQ_MSG);
}
req.logTheSuccess();
return req;
}
} // namespace platforms
} // namespace ops
} // namespace sd