140 lines
4.9 KiB
C++
140 lines
4.9 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 GS <sgazeos@gmail.com>
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//
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#include <system/op_boilerplate.h>
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#if NOT_EXCLUDED(OP_dynamic_partition)
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#include <ops/declarable/CustomOperations.h>
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#include <ops/declarable/helpers/dynamic.h>
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#include <array>
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namespace sd {
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namespace ops {
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CUSTOM_OP_IMPL(dynamic_partition, 2, 1, false, 0, 1) {
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auto input = INPUT_VARIABLE(0);
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auto indices = INPUT_VARIABLE(1);
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REQUIRE_TRUE(input->rankOf() >= indices->rankOf(), 0,
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"dynamic_partition: data tensor rank should be non-lesser than indices\' tensor, but %i < %i given,",
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input->rankOf(), indices->rankOf());
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for (int dim = 0; dim < indices->rankOf(); dim++) {
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REQUIRE_TRUE(
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input->sizeAt(dim) == indices->sizeAt(dim), 0,
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"dynamic_partition: dimensions should be equals for data and indices tensors, but at axis[%i] %i != %i given",
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dim, input->sizeAt(dim), indices->sizeAt(dim));
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}
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auto numPartition = INT_ARG(0);
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std::vector<NDArray *> outputList(numPartition);
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for (int o = 0; o < numPartition; ++o) {
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outputList[o] = OUTPUT_VARIABLE(o);
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}
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helpers::dynamicPartitionFunctor(block.launchContext(), input, indices, outputList);
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return sd::Status::OK;
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}
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DECLARE_SHAPE_FN(dynamic_partition) {
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auto numPartition = INT_ARG(0);
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auto indices = INPUT_VARIABLE(1);
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std::vector<sd::LongType> partitionSizes(numPartition, 0);
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auto in = inputShape->at(0);
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auto idx = inputShape->at(1);
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for (int i = 0; i < numPartition; i++) {
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for (int e = 0; e < indices->lengthOf(); ++e)
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if (indices->e<sd::LongType>(e) == i) partitionSizes[i]++;
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}
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auto shapes = SHAPELIST();
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sd::LongType outRank = shape::rank(in) - shape::rank(idx) + 1;
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for (sd::LongType e = 0; e < numPartition; e++) {
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sd::LongType *newShape;
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ALLOCATE(newShape, block.getWorkspace(), shape::shapeInfoLength(outRank), sd::LongType);
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newShape[0] = outRank;
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newShape[1] = partitionSizes[e];
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for (sd::LongType i = 1; i < outRank; ++i) newShape[i + 1] = shape::sizeAt(in, outRank + i - 1);
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shape::updateStrides(newShape, shape::order(in), false);
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ArrayOptions::setDataType(newShape, ArrayOptions::dataType(in));
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shapes->push_back(CONSTANT(newShape));
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}
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return shapes;
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}
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DECLARE_TYPES(dynamic_partition) {
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getOpDescriptor()->setAllowedInputTypes(sd::DataType::ANY)->setAllowedOutputTypes({ALL_FLOATS, ALL_INTS});
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}
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DECLARE_TYPES(dynamic_partition_bp) { getOpDescriptor()->setAllowedInputTypes(sd::DataType::ANY)->setSameMode(true); }
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CUSTOM_OP_IMPL(dynamic_partition_bp, 3, 2, false, 0, 1) {
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auto input = INPUT_VARIABLE(0);
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auto indices = INPUT_VARIABLE(1);
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auto numPartition = INT_ARG(0);
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std::vector<NDArray *> outputList(2); // only for output
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std::vector<NDArray *> gradOutList(numPartition);
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for (sd::LongType e = 0; e < numPartition; e++) {
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gradOutList[e] = INPUT_VARIABLE(e + 2);
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}
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outputList[0] = OUTPUT_VARIABLE(0);
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outputList[1] = OUTPUT_VARIABLE(1);
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NDArray originalIndices(*indices);
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originalIndices.linspace(0);
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ops::dynamic_partition op;
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auto res = op.evaluate({&originalIndices, indices}, {numPartition});
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REQUIRE_TRUE(res.status() == sd::Status::OK, 0, "dynamic_partition_bp: Error with dynamic partitioning.");
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ops::dynamic_stitch stitchOp;
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std::vector<NDArray *> partitions(numPartition * 2);
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for (int i = 0; i < res.size(); i++) {
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partitions[i] = res.at(i);
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partitions[i + numPartition] = gradOutList[i];
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}
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auto result = stitchOp.evaluate(partitions, {numPartition});
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REQUIRE_TRUE(result.status() == sd::Status::OK, 0, "dynamic_partition_bp: Error with dynamic partitioning.");
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outputList[1]->assign(indices);
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outputList[0]->assign(result.at(0));
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return sd::Status::OK;
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}
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DECLARE_SHAPE_FN(dynamic_partition_bp) {
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auto numPartition = INT_ARG(0);
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auto indices = INPUT_VARIABLE(1);
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std::vector<sd::LongType> partitionSizes(numPartition, 0);
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auto shapes = SHAPELIST();
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// just copy shape info from input and indices to output
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for (sd::LongType i = 0; i < 2; i++) {
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shapes->push_back(CONSTANT(inputShape->at(i)));
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}
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return shapes;
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}
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} // namespace ops
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} // namespace sd
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#endif
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