130 lines
6.5 KiB
Plaintext
130 lines
6.5 KiB
Plaintext
/*******************************************************************************
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* Copyright (c) 2019 Konduit K.K.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author Oleh Semeniv (oleg.semeniv@gmail.com)
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//
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#include <system/op_boilerplate.h>
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#include <ops/declarable/helpers/updatersHelpers.h>
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#include <helpers/PointersManager.h>
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#include <math/platformmath.h>
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#include <math/templatemath.h>
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namespace sd {
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namespace ops {
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namespace helpers {
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///////////////////////////////////////////////////////////////////
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template<typename T>
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__global__ void adaDeltaUpdaterCuda(const void* vx, const Nd4jLong* xShapeInfo, const void* vinMsg, const Nd4jLong* inMsgShapeInfo,
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const void* vinMsdx, const Nd4jLong* inMsdxShapeInfo, void* vz, const Nd4jLong* zShapeInfo, void* vstMsg,
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const Nd4jLong* stMsgShapeInfo, void* vstMsdx, const Nd4jLong* stMsdxShapeInfo, const T rho, const T epsilon) {
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const auto grad = reinterpret_cast<const T*>(vx);
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const auto initMsg= reinterpret_cast<const T*>(vinMsg);
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const auto initMsdx = reinterpret_cast<const T*>(vinMsdx);
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auto up = reinterpret_cast<T*>(vz);
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auto stMsg = reinterpret_cast<T*>(vstMsg);
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auto stMsdx = reinterpret_cast<T*>(vstMsdx);
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__shared__ Nd4jLong xLen;
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__shared__ T rhoT;
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__shared__ bool bEWS, bOrdering, bXZsame, bXInMsgSame, bXStMsgSame, bXInMsdxSame, bXStMsdxSame;
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if (threadIdx.x == 0) {
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xLen = shape::length(xShapeInfo);
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rhoT = (1 - rho);
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bEWS = 1 == shape::elementWiseStride(xShapeInfo) && 1 == shape::elementWiseStride(zShapeInfo) &&
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1 == shape::elementWiseStride(stMsgShapeInfo) && 1 == shape::elementWiseStride(inMsgShapeInfo) &&
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1 == shape::elementWiseStride(stMsdxShapeInfo) && 1 == shape::elementWiseStride(inMsdxShapeInfo);
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bOrdering = shape::order(xShapeInfo) == shape::order(zShapeInfo) && shape::order(zShapeInfo) == shape::order(stMsgShapeInfo) &&
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shape::order(stMsgShapeInfo) == shape::order(inMsgShapeInfo) && shape::order(inMsgShapeInfo) == shape::order(stMsdxShapeInfo) &&
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shape::order(stMsdxShapeInfo) == shape::order(inMsdxShapeInfo);
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bXZsame = shape::haveSameShapeAndStrides(xShapeInfo, zShapeInfo);
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bXInMsgSame = shape::haveSameShapeAndStrides(xShapeInfo, inMsgShapeInfo);
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bXStMsgSame = shape::haveSameShapeAndStrides(xShapeInfo, stMsgShapeInfo);
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bXInMsdxSame = shape::haveSameShapeAndStrides(xShapeInfo, inMsdxShapeInfo);
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bXStMsdxSame = shape::haveSameShapeAndStrides(xShapeInfo, stMsdxShapeInfo);
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}
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__syncthreads();
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int coords[MAX_RANK];
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for (Nd4jLong i = blockIdx.x * blockDim.x + threadIdx.x; i < xLen; i += gridDim.x * blockDim.x) {
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auto xOffset = i, zOffset = i, initMsgOffset = i, initMsdxOffset = i, stMsgOffset = i, stMsdxOffset = i;
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if (!bEWS || !bOrdering){
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shape::index2coords(i, xShapeInfo, coords);
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xOffset = shape::getOffset(xShapeInfo, coords);
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zOffset = bXZsame ? xOffset : shape::getOffset(zShapeInfo, coords);
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initMsgOffset = bXInMsgSame ? xOffset : shape::getOffset(inMsgShapeInfo, coords);
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stMsgOffset = bXStMsgSame ? xOffset : shape::getOffset(stMsgShapeInfo, coords);
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initMsdxOffset = bXInMsdxSame ? xOffset : shape::getOffset(inMsdxShapeInfo, coords);
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stMsdxOffset = bXStMsdxSame ? xOffset : shape::getOffset(stMsdxShapeInfo, coords);
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}
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stMsg[stMsgOffset] = rho * initMsg[initMsgOffset] + grad[xOffset] * grad[xOffset] * rhoT;
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up[zOffset] = grad[xOffset] * (sd::math::nd4j_sqrt<T, T>(initMsdx[initMsdxOffset] + epsilon) / sd::math::nd4j_sqrt<T, T>(stMsg[stMsgOffset] + epsilon));
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stMsdx[stMsdxOffset] = rho * initMsdx[initMsdxOffset] + up[zOffset] * up[zOffset] * rhoT;
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}
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}
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///////////////////////////////////////////////////////////////////
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template<typename T>
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linkage void adaDeltaUpdaterCudaLauncher(const int blocksPerGrid, const int threadsPerBlock, const cudaStream_t* stream, const void* vx, const Nd4jLong* xShapeInfo,
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const void* vinMsg, const Nd4jLong* inMsgShapeInfo, const void* vinMsdx, const Nd4jLong* inMsdxShapeInfo,
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void* vz, const Nd4jLong* zShapeInfo, void* vstMsg, const Nd4jLong* stMsgShapeInfo,
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void* vstMsdx, const Nd4jLong* stMsdxShapeInfo, const double dRho, const double dEpsilon) {
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const T rho = static_cast<T>(dRho);
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const T epsilon = static_cast<T>(dEpsilon);
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adaDeltaUpdaterCuda<T> << <blocksPerGrid, threadsPerBlock, 256, * stream >> > (vx, xShapeInfo, vinMsg, inMsgShapeInfo,
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vinMsdx, inMsdxShapeInfo, vz, zShapeInfo, vstMsg, stMsgShapeInfo, vstMsdx, stMsdxShapeInfo, rho, epsilon);
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}
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///////////////////////////////////////////////////////////////////
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void updaterAdaDelta(sd::LaunchContext* context, const NDArray& gradient, const NDArray& initStateMsg, const NDArray& initStateMsdx,
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NDArray& update, NDArray& stateMsg, NDArray& stateMsdx, const double dRho, const double dEpsilon) {
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PointersManager manager(context, "adaDeltaUpdater");
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const int threadsPerBlock = MAX_NUM_THREADS / 4;
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const int blocksPerGrid = (gradient.lengthOf() + threadsPerBlock - 1) / threadsPerBlock;
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NDArray::prepareSpecialUse({ &update, &stateMsg, &stateMsdx }, { &gradient, &initStateMsg, &initStateMsdx });
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BUILD_SINGLE_SELECTOR(gradient.dataType(), adaDeltaUpdaterCudaLauncher, (blocksPerGrid, threadsPerBlock, context->getCudaStream(), gradient.getSpecialBuffer(), gradient.getSpecialShapeInfo(),
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initStateMsg.getSpecialBuffer(), initStateMsg.getSpecialShapeInfo(), initStateMsdx.getSpecialBuffer(), initStateMsdx.getSpecialShapeInfo(),
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update.getSpecialBuffer(), update.getSpecialShapeInfo(),stateMsg.getSpecialBuffer(), stateMsg.getSpecialShapeInfo(),
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stateMsdx.getSpecialBuffer(), stateMsdx.getSpecialShapeInfo(), dRho, dEpsilon), FLOAT_TYPES);
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NDArray::registerSpecialUse({ &update, &stateMsg, &stateMsdx }, { &gradient, &initStateMsg, &initStateMsdx });
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manager.synchronize();
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}
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}
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}
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}
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