cavis/libnd4j/include/ops/declarable/helpers/cuda/axis.cu

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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 sgazeos@gmail.com
//
#include <ops/declarable/helpers/axis.h>
namespace nd4j {
namespace ops {
namespace helpers {
void adjustAxis(Nd4jLong rank, NDArray* axisVector, std::vector<int>& output) {
output.resize(axisVector->lengthOf());
axisVector->tickReadDevice(); // mark input as read on device
axisVector->syncToHost(); // sync to host
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for (int e = 0; e < axisVector->lengthOf(); e++) {
auto ca = axisVector->e<int>(e);
if (ca < 0) // shift values on rank for negative vals
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ca += rank;
output[e] = ca;
}
}
void adjustAxis(Nd4jLong rank, std::vector<int> &axisVector) {
for (int e = 0; e < axisVector.size(); e++) {
auto a = axisVector[e];
if (a < 0) // shift vals on rank for negative vals
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axisVector[e] = a + rank;
}
}
}
}
}