cavis/libnd4j/include/ops/declarable/helpers/cpu/range.cpp

57 lines
1.9 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
******************************************************************************/
//
// @author Yurii Shyrma (iuriish@yahoo.com), created on 27.08.2018
//
#include <ops/declarable/helpers/range.h>
#include <execution/Threads.h>
namespace sd {
namespace ops {
namespace helpers {
//////////////////////////////////////////////////////////////////////////
// be careful: outVector must have c-order and ews = 1 !!!
template <typename T>
static void _range(const NDArray& start, const NDArray& delta, NDArray& outVector) {
const Nd4jLong len = outVector.lengthOf();
auto buff = reinterpret_cast<T *>(outVector.buffer());
auto s = start.e<T>(0);
auto d = delta.e<T>(0);
auto func = PRAGMA_THREADS_FOR {
for (auto i = start; i < stop; i++)
buff[i] = s + i * d;
};
samediff::Threads::parallel_for(func, 0, len);
}
void range(sd::LaunchContext * context, const NDArray& start, const NDArray& delta, NDArray& outVector) {
BUILD_SINGLE_SELECTOR(outVector.dataType(), _range, (start, delta, outVector), LIBND4J_TYPES);
}
BUILD_SINGLE_TEMPLATE(template void _range, (const NDArray& start, const NDArray& delta, NDArray& outVector), LIBND4J_TYPES);
}
}
}