wehub-resource-sync
148 lines
5.0 KiB
Plaintext
148 lines
5.0 KiB
Plaintext
/*
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* ******************************************************************************
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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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#include <helpers/ConstantHelper.h>
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#include <helpers/ConstantShapeHelper.h>
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#include <helpers/ShapeBufferCreatorHelper.h>
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#include <helpers/ShapeUtils.h>
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#include <helpers/cuda/CudaShapeBufferCreator.h>
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#include "array/CudaPointerDeallocator.h"
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#include "array/TadCalculator.h"
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namespace sd {
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TadCalculator::TadCalculator(LongType* originalShape)
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: _originalShape(originalShape), _numTads(0) {}
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TadCalculator::~TadCalculator() {
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if (_tadOffsets) {
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delete _tadOffsets;
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_tadOffsets = nullptr;
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}
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if (_tadShape) {
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delete _tadShape;
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_tadShape = nullptr;
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}
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}
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void TadCalculator::createTadPack(const std::vector<LongType>& dimensions) {
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if (!_originalShape) {
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THROW_EXCEPTION("Original shape is null");
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}
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auto shapeInfo = ConstantShapeHelper::getInstance().createFromExisting(_originalShape);
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const LongType rank = shape::rank(shapeInfo);
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const std::vector<LongType>* dimsToExclude = ShapeUtils::evalDimsToExclude(rank, dimensions.size(), dimensions.data());
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if (!dimsToExclude) {
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THROW_EXCEPTION("Failed to evaluate dimensions to exclude");
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}
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bool hasSize1Dimension = false;
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for (auto dim : dimensions) {
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if (shape::shapeOf(shapeInfo)[dim] == 1) {
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hasSize1Dimension = true;
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break;
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}
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}
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if (dimsToExclude->size() == 0 || dimsToExclude->size() == rank || hasSize1Dimension) {
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const LongType totalElements = shape::length(shapeInfo);
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auto scalarShapeInfo = ConstantShapeHelper::getInstance().scalarShapeInfo(ArrayOptions::dataType(shapeInfo));
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auto scalarShapeBuffer = CudaShapeBufferCreator::getInstance().create(scalarShapeInfo, 0);
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LongType* offsetsBuf = new LongType[totalElements];
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for (LongType i = 0; i < totalElements; ++i) {
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offsetsBuf[i] = i;
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}
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auto oPtr = std::make_shared<PointerWrapper>(offsetsBuf);
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auto offDPtr = std::make_shared<PointerWrapper>(
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ConstantHelper::getInstance().replicatePointer(oPtr->pointer(), totalElements * sizeof(LongType)),
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std::make_shared<CudaPointerDeallocator>());
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_tadShape = scalarShapeBuffer;
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_tadOffsets = new ConstantOffsetsBuffer(oPtr, offDPtr);
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_numTads = totalElements;
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delete dimsToExclude;
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return;
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}
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const LongType numOfSubArrs = ShapeUtils::getNumOfSubArrs(shapeInfo, *dimsToExclude);
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if (numOfSubArrs > 0) {
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const LongType subArrRank = (static_cast<size_t>(rank) == dimsToExclude->size() || false) ? rank : rank - dimsToExclude->size();
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LongType* shapeInfoBuf = new LongType[shape::shapeInfoLength(subArrRank)];
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LongType* offsetsBuf = new LongType[numOfSubArrs];
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shape::calcSubArrsShapeInfoAndOffsets(
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shapeInfo,
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numOfSubArrs,
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dimsToExclude->size(),
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dimsToExclude->data(),
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shapeInfoBuf,
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offsetsBuf,
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false);
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ConstantShapeBuffer* shapesBuffer = CudaShapeBufferCreator::getInstance().create(shapeInfoBuf, subArrRank);
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auto oPtr = std::make_shared<PointerWrapper>(offsetsBuf);
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auto offDPtr = std::make_shared<PointerWrapper>(
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ConstantHelper::getInstance().replicatePointer(oPtr->pointer(), numOfSubArrs * sizeof(LongType)),
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std::make_shared<CudaPointerDeallocator>());
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_tadOffsets = new ConstantOffsetsBuffer(oPtr, offDPtr);
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_tadShape = shapesBuffer;
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_numTads = numOfSubArrs;
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} else {
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const LongType subArrRank = rank;
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LongType* shapeInfoBuf = new LongType[shape::shapeInfoLength(subArrRank)];
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auto nonConstant = const_cast<LongType*>(shapeInfo);
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shape::copyTo<LongType>(shape::shapeInfoLength(subArrRank), nonConstant, shapeInfoBuf);
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ConstantShapeBuffer* shapesBuffer = CudaShapeBufferCreator::getInstance().create(shapeInfoBuf, subArrRank);
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LongType* baseOffset = new LongType[1];
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baseOffset[0] = 0;
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auto oPtr = std::make_shared<PointerWrapper>(baseOffset);
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auto offDPtr = std::make_shared<PointerWrapper>(
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ConstantHelper::getInstance().replicatePointer(oPtr->pointer(), 1 * sizeof(LongType)),
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std::make_shared<CudaPointerDeallocator>());
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_tadOffsets = new ConstantOffsetsBuffer(oPtr, offDPtr);
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_tadShape = shapesBuffer;
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_numTads = 1;
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}
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delete dimsToExclude;
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}
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} // namespace sd |