65 lines
2.5 KiB
C++
65 lines
2.5 KiB
C++
/* ******************************************************************************
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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 raver119@gmail.com
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//
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#include <ops/declarable/helpers/threshold.h>
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#include <execution/Threads.h>
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#include <helpers/threshold.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 int32_t thresholdEstimate_(const NDArray &updates, const float threshold) {
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auto N = updates.lengthOf();
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const auto buffer = updates.bufferAsT<T>();
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auto func = PRAGMA_REDUCE_LONG {
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int64_t cnt = 0;
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for (auto e = start; e < stop; e++) {
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auto v = sd::math::nd4j_abs<T>(buffer[e]);
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if (v >= threshold)
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cnt++;
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}
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return cnt;
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};
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return samediff::Threads::parallel_long(func, LAMBDA_AL { return _old + _new; }, 0, N);
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}
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int32_t thresholdEstimate(const NDArray &updates, const float threshold) {
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BUILD_SINGLE_SELECTOR(updates.dataType(), return thresholdEstimate_, (updates, threshold), FLOAT_TYPES);
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return 0;
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}
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void thresholdEncode(NDArray &updates, NDArray &encoded, float threshold) {
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BUILD_SINGLE_SELECTOR(updates.dataType(), sd::TypeCast::convertToThreshold, (nullptr, updates.buffer(), updates.lengthOf(), encoded.buffer()), FLOAT_TYPES);
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}
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void thresholdDecode(const NDArray &encoded, NDArray &updates) {
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BUILD_SINGLE_SELECTOR(updates.dataType(), sd::TypeCast::convertFromThreshold, (nullptr, encoded.buffer(), updates.lengthOf(), updates.buffer()), FLOAT_TYPES);
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}
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}
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}
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}
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