63 lines
2.4 KiB
C++
63 lines
2.4 KiB
C++
/*******************************************************************************
|
|
* 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
|
|
******************************************************************************/
|
|
|
|
//
|
|
// Created by raver119 on 24/09/18.
|
|
//
|
|
|
|
#include <ops/declarable/helpers/where.h>
|
|
#include <array/NDArrayList.h>
|
|
|
|
namespace sd {
|
|
namespace ops {
|
|
namespace helpers {
|
|
template <typename T>
|
|
static void __where(NDArray &condition, NDArray& output, memory::Workspace *workspace) {
|
|
NDArrayList list(0, true);
|
|
int cnt = 0;
|
|
|
|
int idx[MAX_RANK];
|
|
|
|
for (Nd4jLong e = 0; e < condition.lengthOf(); e++) {
|
|
|
|
shape::index2coordsCPU(0, e, condition.getShapeInfo(), idx);
|
|
|
|
auto offset = shape::getOffset(condition.getShapeInfo(), idx);
|
|
|
|
if (condition.e<bool>(offset)) {
|
|
auto array = NDArrayFactory::create_('c', {1, condition.rankOf()}, output.dataType(), output.getContext());
|
|
for (int f = 0; f < condition.rankOf(); f++)
|
|
array->p(f, (T) idx[f]);
|
|
|
|
list.write(cnt++, array);
|
|
}
|
|
}
|
|
|
|
auto s = list.stack();
|
|
output.assign(s);
|
|
delete s;
|
|
}
|
|
BUILD_SINGLE_TEMPLATE(template void __where,(NDArray &condition, NDArray& output, memory::Workspace *workspace), LIBND4J_TYPES);
|
|
|
|
void _where(sd::LaunchContext * context, NDArray &condition, NDArray& output, memory::Workspace *workspace) {
|
|
condition.syncToHost();
|
|
BUILD_SINGLE_SELECTOR(output.dataType(), __where, (condition, output, workspace), LIBND4J_TYPES);
|
|
output.syncToDevice();
|
|
}
|
|
}
|
|
}
|
|
}
|