cavis/libnd4j/include/ops/declarable/generic/transforms/reverse.cpp

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/*******************************************************************************
* Copyright (c) 2015-2018 Skymind, Inc.
*
* 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 Yurii Shyrma (iuriish@yahoo.com), created on 02.11.2017
//
#include <system/op_boilerplate.h>
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#if NOT_EXCLUDED(OP_reverse)
#include <ops/declarable/CustomOperations.h>
#include <ops/declarable/helpers/reverse.h>
namespace sd {
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namespace ops {
CONFIGURABLE_OP_IMPL(reverse, 1, 1, true, 0, -2) {
auto input = INPUT_VARIABLE(0);
auto output = OUTPUT_VARIABLE(0);
Dev branch merge: dev_20190606 (#7904) * correct logsoftmax looss (#2) * Small SameDiff listener fix (#4) * Various fixes (#6) * #7839 Fix for asXMatrix and tests * #7866 EmbeddingSequenceLayer dtype fix + test * #7856 SameDiff save/load stream methods * #7859 RegressionEvaluation rank 4 fix + tests + axis configuration * EvaluationBinary 3d/4d * More evaluation 3d/4d tests * #7847 Evaluation empty checks * Small test ifx * #7848 Fix median edge case * Improve DL4J samediff layer tests * [WIP] FastText wrapper implemented (#8) * FastText implemented * Some fixes * Fix shapes for wordsNearest * Validation of input vectors * Fixes * Fixed test * Thread tagged * Some tweaks * setContextClassLoader for DeallocatorServiceThread * Numpy format tests (#1) * Various fixes (#11) * #7852 SameDiff gather fix * #7892 SameDiff placeholder to constant conversion * #7890 validate input rank for MLN/CG init methods * Fix broken permute shape calculation * Permute and gather fixes * Tests * #7850 LogSumExp fix + test * Handful of test fixes * Empty arrays with non-scalar shapes (#10) * minor rearrangements for lambdas * empty tensors with non-scalar shapes * numpy empty tensors with non-scalar shapes * few more empty tweaks * Small fixes * conv3d signature update * micro fix in batchnorm mkldnn * Import fixes * Fix * MKL-DNN update * Small fill fix * fill with empty input + test * Fixes * Small error improvement * Fix * one special test * couple of fixes for lstm * Rewrite TFGraphMapper.getNDArrayFromTensor to be maintainable and less error prone * Fixes * FP16 * Unsigned * BFloat16 * Fill op - empty tweaks * - couple of fixes for empty arrays construction - stack updated * strided slice fix * one transform test * provide method for reducing shapeInfo in case of input array is empty * Fixed reduceAlongDimensions to use empty input properly. * couple of broadcast tests * couple of tests broadcast tests + tweak to make them pass * add check of non-empty to methods producing sub-arrays * Fixed reshapeC with zeros in shape. * complete empty check in reduce_... legacy ops * Concat and cumsum/prod * Tweak to empty shape inference on import * add empty check to the rest of reduce legacy ops * one more test * correct typo in evalReduceShapeInfoEmpty * Added tests for reduce_* ops to tests with zero shapes. * few more tests for empty reductions * Fixed strided_slice op with empty case and tests. * one more empty reduction test * Fixed strided_slice test. * add empty check to NDArray::reshapei * infOrMax * empty min/max with infinity tests * made unstack working correctly with empty arrays * few IndexReduce tests + tweaks for empty shapes * add test for empty concat * few tests fixed * Validation fix for reductions on empty shapes * Reverse fix * Reduction shape calc fixes * SameDiff.generateOutputVariable: don't use shape function to determine number of outputs * Range fix * - NDArray constructor updated for scalars/empty arrays - few tests fixed * More fixes * Empty creator fixes * concat fix * concat fix * TF import tests: allow 'both all NaN' and 'both all inf' to pass * Slice, zero fraction, and reshape fixes * transpose, gather * Zero fraction * scalar cast fix * Empty reduction axis support * few more tests fixed * Fixed input checks conforming with TF for concat op and tests. * few tests fixed * matmul scalar shape fix * Fixed checkout for data type and scalarity with concat to allow non-empty scalars with vector concats. * broadcast bool fix * few more tests * few more tests * correct evalReduceShapeInfoEmpty * argmax/argmin + tests * one more empty edge case + one more test * argmax/argmin/realdiv_bp tweaks * empty reshape test + fix * Helper fixes * Small fixes * Gather test fix * Gather test fix * Small fixes * reduce scalar zero values * scalar mean workaround * Remove debug code * along dim mean workaround * one more test * - equalsTo() tweak for empty arrays - one more test * broadcast tweaks
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if(output->isEmpty()){
//No-op
return Status::OK();
}
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std::vector<int> axis;
if (block.width() > 1)
axis = INPUT_VARIABLE(1)->template asVectorT<int>();
else if (block.numI() > 0)
axis = *block.getIArguments();
if(axis.empty()) { // do not perform reversion
if (!block.isInplace())
output->assign(input);
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}
else {
// check the consistency of input dimensions to reverse along
shape::checkDimensions(input->rankOf(), axis);
helpers::reverse(block.launchContext(), input, output, &axis, false);
}
return Status::OK();
}
DECLARE_SYN(reverse_v2, reverse);
DECLARE_TYPES(reverse) {
getOpDescriptor()->setAllowedInputTypes(0, DataType::ANY);
getOpDescriptor()->setAllowedInputTypes(1, {DataType::INT32, DataType::INT64});
getOpDescriptor()->setAllowedOutputTypes(0, DataType::INHERIT);
}
CUSTOM_OP_IMPL(reverse_bp, 2, 1, false, 0, -2) {
auto input = INPUT_VARIABLE(0);
auto eps = block.width() == 3 ? INPUT_VARIABLE(2) : INPUT_VARIABLE(1);
auto output = OUTPUT_VARIABLE(0);
std::vector<int> axis;
if (block.width() == 3)
axis = INPUT_VARIABLE(1)->template asVectorT<int>();
else if (block.numI() > 0)
axis = *block.getIArguments();
if(axis.empty()) { // reversion is not performed in this case
output->assign(eps);
}
else {
// check the consistency of input dimensions to reverse along
shape::checkDimensions(input->rankOf(), axis);
// we just reverse back original array
helpers::reverse(block.launchContext(), eps, output, &axis, true);
}
return Status::OK();
}
DECLARE_TYPES(reverse_bp) {
getOpDescriptor()
->setAllowedInputTypes(sd::DataType::ANY)
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->setAllowedOutputTypes({ALL_FLOATS});
}
DECLARE_SHAPE_FN(reverse_bp) {
auto in = inputShape->at(0);
Nd4jLong *out;
COPY_SHAPE(in, out);
return SHAPELIST(CONSTANT(out));
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}
}
}
#endif