53 lines
2.1 KiB
Plaintext
53 lines
2.1 KiB
Plaintext
/*******************************************************************************
|
|
* 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>
|
|
|
|
namespace sd {
|
|
namespace ops {
|
|
namespace helpers {
|
|
|
|
template <typename T>
|
|
static __global__ void global_range(void *output, Nd4jLong length, T start, T delta) {
|
|
auto buff = reinterpret_cast<T*>(output);
|
|
const auto tid = blockIdx.x * blockDim.x + threadIdx.x;
|
|
const auto step = gridDim.x * blockDim.x;
|
|
|
|
for(Nd4jLong i = tid; i < length; i += step)
|
|
buff[i] = start + i * delta;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
// be careful: outVector must have c-order and ews = 1 !!!
|
|
template <typename T>
|
|
static void _range(sd::LaunchContext * context, const NDArray& start, const NDArray& delta, NDArray& outVector) {
|
|
global_range<T><<<512, 512, 2048, *context->getCudaStream()>>>(outVector.getSpecialBuffer(), outVector.lengthOf(), start.e<T>(0), delta.e<T>(0));
|
|
}
|
|
|
|
void range(sd::LaunchContext * context, const NDArray& start, const NDArray& delta, NDArray& outVector) {
|
|
NDArray::prepareSpecialUse({&outVector}, {&start, &delta});
|
|
BUILD_SINGLE_SELECTOR(outVector.dataType(), _range, (context, start, delta, outVector), LIBND4J_TYPES);
|
|
NDArray::registerSpecialUse({&outVector}, {&start, &delta});
|
|
}
|
|
|
|
}
|
|
}
|
|
} |