86 lines
3.4 KiB
C++
86 lines
3.4 KiB
C++
/*******************************************************************************
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* Copyright (c) 2015-2018 Skymind, Inc.
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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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* 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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// Created by raver119 on 24.04.17.
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//
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#ifndef LIBND4J_SPECIALS_H
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#define LIBND4J_SPECIALS_H
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#ifdef __CUDACC__
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#define ELEMENT_THRESHOLD 8192
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#define TAD_THRESHOLD 2
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#endif
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#include <pointercast.h>
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#include <vector>
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namespace nd4j {
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class NDArray;
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//FIXME: get rid of this redefinition
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typedef union
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{
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float f_;
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int i_;
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} FloatBits2;
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class ND4J_EXPORT SpecialTypeConverter {
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public:
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template<typename S, typename T>
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static void convertGeneric(Nd4jPointer * extras, void *dx, Nd4jLong N, void *dz);
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};
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template <typename T>
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class ND4J_EXPORT SpecialMethods {
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public:
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static void concatCpuGeneric(const std::vector<NDArray*>& inArrs, NDArray& output, const int axis);
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static void concatCpuGeneric(int dimension, int numArrays, Nd4jPointer *data, Nd4jPointer *inputShapeInfo, void *result, Nd4jLong *resultShapeInfo);
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static void accumulateGeneric(void **x, void *z, Nd4jLong *zShapeInfo, int n, const Nd4jLong length);
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static void averageGeneric(void **x, void *z, Nd4jLong *zShapeInfo, int n, const Nd4jLong length, bool propagate);
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static Nd4jLong getPosition(Nd4jLong *xShapeInfo, Nd4jLong index);
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static void quickSort_parallel_internal(T* array, Nd4jLong *xShapeInfo, int left, int right, int cutoff, bool descending);
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static void quickSort_parallel(void* array, Nd4jLong *xShapeInfo, Nd4jLong lenArray, int numThreads, bool descending);
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static int nextPowerOf2(int number);
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static int lastPowerOf2(int number);
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static void sortGeneric(void *x, Nd4jLong *xShapeInfo, bool descending);
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static void sortTadGeneric(void *x, Nd4jLong *xShapeInfo, int *dimension, int dimensionLength, Nd4jLong *tadShapeInfo, Nd4jLong *tadOffsets, bool descending);
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static void decodeBitmapGeneric(void *dx, Nd4jLong N, void *dz, Nd4jLong *zShapeInfo);
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static Nd4jLong encodeBitmapGeneric(void *dx, Nd4jLong *zShapeInfo, Nd4jLong N, int *dz, float threshold);
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};
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template <typename X, typename Y>
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class ND4J_EXPORT DoubleMethods{
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public:
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static void sortByKey(void *vx, Nd4jLong *xShapeInfo, void *vy, Nd4jLong *yShapeInfo, bool descending);
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static void sortByValue(void *vx, Nd4jLong *xShapeInfo, void *vy, Nd4jLong *yShapeInfo, bool descending);
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static void sortTadByKey(void *vx, Nd4jLong *xShapeInfo, void *vy, Nd4jLong *yShapeInfo, int *dimension, int dimensionLength, bool descending);
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static void sortTadByValue(void *vx, Nd4jLong *xShapeInfo, void *vy, Nd4jLong *yShapeInfo, int *dimension, int dimensionLength, bool descending);
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};
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}
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#endif //LIBND4J_SPECIALS_H
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