wehub-resource-sync
62 lines
2.4 KiB
Plaintext
62 lines
2.4 KiB
Plaintext
/* ******************************************************************************
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*
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* See the NOTICE file distributed with this work for additional
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* information regarding copyright ownership.
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author Yurii Shyrma (iuriish@yahoo.com), created on 27.08.2018
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//
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#include <ops/declarable/helpers/range.h>
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#include "execution/cuda/LaunchDims.h"
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namespace sd {
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namespace ops {
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namespace helpers {
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template <typename T>
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static SD_KERNEL void global_range(void* output, LongType length, T start, T delta) {
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auto buff = reinterpret_cast<T*>(output);
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const auto tid = blockIdx.x * blockDim.x + threadIdx.x;
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const auto step = gridDim.x * blockDim.x;
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for (LongType i = tid; i < length; i += step) {
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buff[i] = static_cast<T>(start) + static_cast<T>(i) * static_cast<T>(delta);
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}
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}
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//////////////////////////////////////////////////////////////////////////
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// be careful: outVector must have c-order and ews = 1 !!!
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template <typename T>
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static void _range(LaunchContext* context, NDArray& start, NDArray& delta, NDArray& outVector) {
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dim3 launchDims = getLaunchDims("range");
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global_range<T><<<launchDims.y, launchDims.x, launchDims.z, *context->getCudaStream()>>>(outVector.specialBuffer(), outVector.lengthOf(),
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start.e<T>(0), delta.e<T>(0));
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sd::DebugHelper::checkErrorCode(context->getCudaStream(), "global_range failed");
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}
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void range(LaunchContext* context, NDArray& start, NDArray& delta, NDArray& outVector) {
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NDArray::prepareSpecialUse({&outVector}, {&start, &delta});
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BUILD_SINGLE_SELECTOR(outVector.dataType(), _range, (context, start, delta, outVector), SD_COMMON_TYPES);
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NDArray::registerSpecialUse({&outVector}, {&start, &delta});
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}
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} // namespace helpers
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} // namespace ops
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} // namespace sd
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