cavis/libnd4j/include/ops/declarable/helpers/cpu/updaterAdam.cpp

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Learning updaters for gradient (#335) * libnd4j raw implementation of sgd upader Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j some corrections and simple test added Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j some corrections after discussion Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j integrate applyScalar Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j raw implementation of rmsPropUpdater on cpu Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j fix operations declaration Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j rmsPropUpdater added, test cases for sgd, etc Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j fixed several typos Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j some fixes and improvements for rmsPropUpdater based on Java tests Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j fixed cuda implementation, update tests and corrected behavior according java tests Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j adaGrad updater added Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j one minor fix for ada grad Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j several more fixes for ada_grad Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j nesterovs updater added Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j fixed nesterovs updater behavior, several typos and rename file Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j one minor typo Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j ada max updater added Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j fixed several typos in adaMax updater Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j fixed several typos in adaMaxUpdater Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j several fixes for adaMax, added Adam Updater Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j adaDeltaUpdater added, minor fixes for adamUpdater Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j several fixes for adaDeltaUpdater Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j nadamUpdater added Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j one more correction for nadam updater Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j several fixes for nadam updater and added amsGradUpdater Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j several typos fixed in amsGradUpdater Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j some corrections and added f order support rmsProp updater Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j added support of f order for all updaters and modify tests for testing in place Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j fixed issues for updates when not in place mode used, added tests for f order Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j added input shape checks Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j some corrections for different cases handling Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j some code clean up and optimize per request Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j updaters refactoring after review Signed-off-by: Oleg <oleg.semeniv@gmail.com> * SgdUpdater wrapper Signed-off-by: raver119 <raver119@gmail.com> * first test Signed-off-by: raver119 <raver119@gmail.com> * RmsPropUpdater added Signed-off-by: raver119 <raver119@gmail.com> * NadamUpdater + NesterovsUpdater Signed-off-by: raver119 <raver119@gmail.com> * AmsGradUpdater Signed-off-by: raver119 <raver119@gmail.com> * AdamUpdater added Signed-off-by: raver119 <raver119@gmail.com> * AdaGradUpdater + AdaDeltaUpdater + AdaMaxUpdater Signed-off-by: raver119 <raver119@gmail.com> * AdaGradUpdater test added Signed-off-by: raver119 <raver119@gmail.com> * libnd4j remove input parameters parsing through NDArray, split implementation of helpers to separate files, added some rename, etc Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j next step to split operations implementation into separate files Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j merge master and minor corrections Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j revert some changes of split implementation Signed-off-by: Oleg <oleg.semeniv@gmail.com> * libnd4j forgot to add header file Signed-off-by: Oleg <oleg.semeniv@gmail.com> * public default constructors Signed-off-by: raver119 <raver119@gmail.com> * ImportClassMapping updated Signed-off-by: raver119 <raver119@gmail.com> Co-authored-by: raver119 <raver119@gmail.com>
2020-03-23 05:28:31 +01:00
/*******************************************************************************
* Copyright (c) 2019-2020 Konduit K.K.
*
* 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.
*
* 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 Oleh Semeniv (oleg.semeniv@gmail.com)
//
#include <ops/declarable/helpers/updatersHelpers.h>
#include <execution/Threads.h>
#include <math/platformmath.h>
#include <math/templatemath.h>
namespace sd {
namespace ops {
namespace helpers {
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template <typename T>
static void adamUpdater_(const NDArray& gradient, const NDArray& initStateU, const NDArray& initStateM, NDArray& update,
NDArray& stateU, NDArray& stateM, const double dLr, const double dBeta1, const double dBeta2,
const double dEpsilon, const int nIteration) {
const T* grad = gradient.bufferAsT<T>();
const T* initU = initStateU.bufferAsT<T>();
const T* initM = initStateM.bufferAsT<T>();
T* up = update.bufferAsT<T>();
T* stU = stateU.bufferAsT<T>();
T* stM = stateM.bufferAsT<T>();
const T lr = static_cast<T>(dLr);
const T beta1 = static_cast<T>(dBeta1);
const T beta2 = static_cast<T>(dBeta2);
const T epsilon = static_cast<T>(dEpsilon);
const T iteration = static_cast<T>(nIteration);
const T beta1T = sd::math::nd4j_pow<T, T, T>(beta1, (iteration + 1));
const T beta2T = sd::math::nd4j_pow<T, T, T>(beta2, (iteration + 1));
T epsilonT = lr * sd::math::nd4j_sqrt<T, T>(1. - beta2T) / (1.0 - beta1T);
if (sd::math::nd4j_isnan(epsilonT) || 0 == epsilonT || sd::math::nd4j_isinf(epsilonT))
epsilonT = epsilon;
bool bEws1 = 1 == gradient.ews() && 1 == update.ews() && 1 == stateM.ews() && 1 == initStateM.ews() && 1 == stateU.ews() && 1 == initStateU.ews();
bool bSameOrdering = gradient.ordering() == update.ordering() &&
update.ordering() == stateU.ordering() &&
stateU.ordering() == initStateU.ordering() &&
stateU.ordering() == initStateM.ordering() && stateM.ordering() == initStateM.ordering();
if (bEws1 && bSameOrdering) {
auto func = PRAGMA_THREADS_FOR{
for (auto i = start; i < stop; i++) {
stM[i] = beta1 * initM[i] + grad[i] * (1 - beta1);
stU[i] = beta2 * initU[i] + grad[i] * grad[i] * (1 - beta2);
up[i] = (stM[i] * epsilonT) / (sd::math::nd4j_sqrt<T, T>(stU[i]) + epsilon);
}
};
samediff::Threads::parallel_for(func, 0, gradient.lengthOf(), 1);
return;
}
bool bXZsame = shape::haveSameShapeAndStrides(gradient.getShapeInfo(), update.getShapeInfo());
bool bXInVSame = shape::haveSameShapeAndStrides(gradient.getShapeInfo(), initStateU.getShapeInfo());
bool bXStVSame = shape::haveSameShapeAndStrides(gradient.getShapeInfo(), stateU.getShapeInfo());
bool bXInMSame = shape::haveSameShapeAndStrides(gradient.getShapeInfo(), initStateM.getShapeInfo());
bool bXStMSame = shape::haveSameShapeAndStrides(gradient.getShapeInfo(), stateM.getShapeInfo());
auto func = PRAGMA_THREADS_FOR{
int coords[MAX_RANK];
for (auto i = start; i < stop; i++) {
shape::index2coordsCPU(start, i, gradient.getShapeInfo(), coords);
const auto xOffset = shape::getOffset(gradient.getShapeInfo(), coords);
const auto zOffset = bXZsame ? xOffset : shape::getOffset(update.getShapeInfo(), coords);
const auto initUOffset = bXInVSame ? xOffset : shape::getOffset(initStateU.getShapeInfo(), coords);
const auto stUOffset = bXStVSame ? xOffset : shape::getOffset(stateU.getShapeInfo(), coords);
const auto initMOffset = bXInVSame ? xOffset : shape::getOffset(initStateM.getShapeInfo(), coords);
const auto stMOffset = bXStMSame ? xOffset : shape::getOffset(stateM.getShapeInfo(), coords);
stM[stMOffset] = beta1 * initM[initMOffset] + grad[xOffset] * (1 - beta1);
stU[stUOffset] = beta2 * initU[initUOffset] + grad[xOffset] * grad[xOffset] * (1 - beta2);
up[zOffset] = (stM[stMOffset] * epsilonT) / (sd::math::nd4j_sqrt<T, T>(stU[stUOffset]) + epsilon);
}
};
samediff::Threads::parallel_for(func, 0, gradient.lengthOf(), 1);
return;
}
void updaterAdam(sd::LaunchContext* context, const NDArray& gradient, const NDArray& initStateU, const NDArray& initStateM, NDArray& update, NDArray& stateU, NDArray& stateM, const double dLr, const double dBeta1, const double dBeta2, const double dEpsilon, const int nIteration) {
BUILD_SINGLE_SELECTOR(gradient.dataType(), adamUpdater_, (gradient, initStateU, initStateM, update, stateU, stateM, dLr, dBeta1, dBeta2, dEpsilon, nIteration), FLOAT_TYPES);
}
}
}
}