wehub-resource-sync
128 lines
4.7 KiB
C++
128 lines
4.7 KiB
C++
/* ******************************************************************************
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*
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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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* See the NOTICE file distributed with this work for additional
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* information regarding copyright ownership.
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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 raver119@gmail.com
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//
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#include <helpers/shape.h>
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#include <ops/declarable/helpers/prefix.h>
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#include <ops/ops.h>
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namespace sd {
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namespace ops {
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namespace helpers {
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template <typename T>
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static void prefix_(scalar::Ops op, const void* vx, sd::LongType const* xShapeInfo, void* vz,
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sd::LongType const* zShapeInfo, bool exclusive, bool reverse) {
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const auto x = reinterpret_cast<const T*>(vx);
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auto z = reinterpret_cast<T*>(vz);
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auto length = shape::length(xShapeInfo);
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T prevSum = op == scalar::Add ? (T)0 : (T)1;
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T sum = prevSum;
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LongType xCoords[SD_MAX_RANK];
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LongType zCoords[SD_MAX_RANK];
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LongType xOffset;
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LongType zOffset;
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sd::LongType xRank = shape::rank(xShapeInfo);
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sd::LongType zRank = shape::rank(zShapeInfo);
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sd::LongType *xShape = shape::shapeOf(xShapeInfo);
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sd::LongType *xStride = shape::stride(xShapeInfo);
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sd::LongType *zShape = shape::shapeOf(zShapeInfo);
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sd::LongType *zStride = shape::stride(zShapeInfo);
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if (reverse) {
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for (sd::LongType e = length - 1; e >= 0; --e) {
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INDEX2COORDS(e, xRank, xShape, xCoords);
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COORDS2INDEX(xRank, xStride, xCoords, xOffset);
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INDEX2COORDS(e, zRank, zShape, zCoords);
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COORDS2INDEX(zRank, zStride, zCoords, zOffset);
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sum = op == scalar::Add ? simdOps::Add<T, T, T>::op(sum, x[xOffset])
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: simdOps::Multiply<T, T, T>::op(sum, x[xOffset]);
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if (!exclusive) prevSum = sum;
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z[zOffset] = prevSum;
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prevSum = sum;
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}
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} else {
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for (sd::LongType e = 0; e < length; e++) {
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INDEX2COORDS(e, xRank, xShape, xCoords);
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COORDS2INDEX(xRank, xStride, xCoords, xOffset);
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INDEX2COORDS(e, zRank, zShape, zCoords);
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COORDS2INDEX(zRank, zStride, zCoords, zOffset);
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sum = op == scalar::Add ? simdOps::Add<T, T, T>::op(sum, x[xOffset])
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: simdOps::Multiply<T, T, T>::op(sum, x[xOffset]);
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if (!exclusive) prevSum = sum;
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z[zOffset] = prevSum;
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prevSum = sum;
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}
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}
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}
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template <typename T>
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static void prefix_(scalar::Ops op, NDArray* x, NDArray* z, const std::vector<LongType>& dims, bool exclusive,
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bool reverse) {
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auto xTads = x->allTensorsAlongDimension(dims);
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auto zTads = z->allTensorsAlongDimension(dims);
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auto t = xTads.size();
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for (int e = 0; e < t; e++) {
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auto tx = xTads.at(e);
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auto tz = zTads.at(e);
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prefix_<T>(op, tx->buffer(), tx->shapeInfo(), tz->buffer(), tz->shapeInfo(), exclusive, reverse);
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}
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};
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template <typename T>
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static void prefix_(scalar::Ops op, NDArray* x, NDArray* z, bool exclusive, bool reverse) {
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prefix_<T>(op, x->buffer(), x->shapeInfo(), z->buffer(), z->shapeInfo(), exclusive, reverse);
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};
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void prefix(sd::LaunchContext* context, scalar::Ops op, NDArray* x, NDArray* z, bool exclusive, bool reverse) {
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BUILD_SINGLE_SELECTOR(x->dataType(), prefix_, (op, x, z, exclusive, reverse), SD_NUMERIC_TYPES);
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}
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void prefix(sd::LaunchContext* context, scalar::Ops op, NDArray* x, NDArray* z, const std::vector<sd::LongType>& dims,
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bool exclusive, bool reverse) {
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BUILD_SINGLE_SELECTOR(x->dataType(), prefix_, (op, x, z, dims, exclusive, reverse), SD_NUMERIC_TYPES);
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}
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BUILD_SINGLE_TEMPLATE( void prefix_,
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(scalar::Ops op, const void* vx, sd::LongType const* xShapeInfo, void* vz,
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sd::LongType const* zShapeInfo, bool exclusive, bool reverse),
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SD_NUMERIC_TYPES);
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BUILD_SINGLE_TEMPLATE( void prefix_,
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(scalar::Ops op, NDArray* x, NDArray* z, const std::vector<sd::LongType>& dims, bool exclusive,
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bool reverse),
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SD_NUMERIC_TYPES);
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BUILD_SINGLE_TEMPLATE( void prefix_,
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(scalar::Ops op, NDArray* x, NDArray* z, bool exclusive, bool reverse), SD_NUMERIC_TYPES);
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} // namespace helpers
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} // namespace ops
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} // namespace sd
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