/******************************************************************************* * 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 16.04.2019 // #ifndef LIBND4J_LOOPKIND_H #define LIBND4J_LOOPKIND_H // #include #include // #include // #include // #include // #include // #include // #include namespace nd4j { class ND4J_EXPORT LoopKind { public: enum Kind { SMALLARR2DX, EWS1, EWSNONZERO, RANK1, RANK2, RANK3, RANK4, RANK5, X_EWSNONZERO, Y_EWSNONZERO, Z_EWSNONZERO, COMMON, BROADCAST_SCALAR_X, BROADCAST_SCALAR_Y, BROADCAST_3D, BROADCAST_4D, BROADCAST_5D }; static FORCEINLINE Kind deduceKindOfLoopXZ(const Nd4jLong* xShapeInfo, const Nd4jLong* zShapeInfo); static FORCEINLINE Kind deduceKindOfLoopXYZ(const Nd4jLong* xShapeInfo, const Nd4jLong* yShapeInfo, const Nd4jLong* zShapeInfo); static FORCEINLINE Kind deduceKindOfLoopTadXZ(const Nd4jLong* xShapeInfo, const Nd4jLong* zShapeInfo, const Nd4jLong* tadShapeInfo); static FORCEINLINE Kind deduceKindOfLoopTadXYZ(const Nd4jLong* xTadShapeInfo, const Nd4jLong* yTadShapeInfo, const Nd4jLong* zShapeInfo); static FORCEINLINE Kind deduceKindOfLoopBroadcast(const Nd4jLong* xShapeInfo, const Nd4jLong* yShapeInfo, const Nd4jLong* zShapeInfo); }; ////////////////////////////////////////////////////////////////////////////// LoopKind::Kind LoopKind::deduceKindOfLoopXZ(const Nd4jLong* xShapeInfo, const Nd4jLong* zShapeInfo) { const int xRank = shape::rank(xShapeInfo); const Nd4jLong xEws = shape::elementWiseStride(xShapeInfo); const Nd4jLong zEws = shape::elementWiseStride(zShapeInfo); const char xOrder = shape::order(xShapeInfo); const char zOrder = shape::order(zShapeInfo); int temp; const bool xVectorOrC = shape::isCommonVector(xShapeInfo, temp) || xOrder == 'c'; const bool zVectorOrC = shape::isCommonVector(zShapeInfo, temp) || zOrder == 'c'; const bool shapesSame = shape::shapeEquals(xShapeInfo, zShapeInfo); if (xEws == 1 && zEws == 1 && xOrder == zOrder && (shapesSame || xOrder == 'c')) return EWS1; if(xEws > 0 && zEws > 0 && ((xOrder == zOrder && (shapesSame || xOrder == 'c')) || (xVectorOrC && zVectorOrC))) return EWSNONZERO; if(xRank == 1 && shapesSame) return RANK1; if(xRank == 2 && shapesSame) return RANK2; if(xRank == 3 && shapesSame) return RANK3; if(xRank == 4 && shapesSame) return RANK4; if(xRank == 5 && shapesSame) return RANK5; if(xEws > 0 && xVectorOrC) return X_EWSNONZERO; if(zEws > 0 && zVectorOrC) return Z_EWSNONZERO; return COMMON; } LoopKind::Kind LoopKind::deduceKindOfLoopBroadcast(const Nd4jLong* xShapeInfo, const Nd4jLong* yShapeInfo, const Nd4jLong* zShapeInfo) { auto xRank = shape::rank(xShapeInfo); auto yRank = shape::rank(yShapeInfo); auto zRank = shape::rank(zShapeInfo); auto xOrder = shape::order(xShapeInfo); auto yOrder = shape::order(yShapeInfo); auto zOrder = shape::order(zShapeInfo); auto xEws = shape::elementWiseStride(xShapeInfo); auto yEws = shape::elementWiseStride(yShapeInfo); auto zEws = shape::elementWiseStride(zShapeInfo); bool bNDLoopsRanks = (xRank == zRank && yRank <= xRank && yRank >= 2); int countUnityDimsInY = 0, countUnityDimsInX = 0; for (int i = 0; i < xRank; i++) { if (i < yRank) countUnityDimsInY += (1 == shape::sizeAt(yShapeInfo, i)) ? 1 : 0; countUnityDimsInX += (1 == shape::sizeAt(xShapeInfo, i)) ? 1 : 0; } bool bNotCommonVectorCase = (countUnityDimsInY != yRank - 1) && (countUnityDimsInX != xRank - 1); if (3 == xRank && bNDLoopsRanks && bNotCommonVectorCase) return nd4j::LoopKind::BROADCAST_3D; if (4 == xRank && bNDLoopsRanks && bNotCommonVectorCase) return nd4j::LoopKind::BROADCAST_4D; if (5 == xRank && bNDLoopsRanks && bNotCommonVectorCase) return nd4j::LoopKind::BROADCAST_5D; if (xRank == yRank && xRank == zRank && xOrder == 'c' && yOrder == 'c' && zOrder == 'c' && xEws == 1 && yEws == 1 && zEws == 1 && xRank >= 2) { // we validate that shapes are equal till the last dim for (int e = 0; e < xRank - 1; e++) { if (xShapeInfo[e+1] != yShapeInfo[e+1]) return COMMON; } // now, if one of the shapes has 1 as last dim auto detect = xShapeInfo[xRank] == 1 ? -1 : (yShapeInfo[xRank] == 1) ? 1 : 0; if (detect == 1) return nd4j::LoopKind::BROADCAST_SCALAR_Y; else if (detect == -1) return nd4j::LoopKind::BROADCAST_SCALAR_X; } return nd4j::LoopKind::COMMON; } ////////////////////////////////////////////////////////////////////////////// LoopKind::Kind LoopKind::deduceKindOfLoopXYZ(const Nd4jLong* xShapeInfo, const Nd4jLong* yShapeInfo, const Nd4jLong* zShapeInfo) { const int xRank = shape::rank(xShapeInfo); const Nd4jLong xEws = shape::elementWiseStride(xShapeInfo); const Nd4jLong yEws = shape::elementWiseStride(yShapeInfo); const Nd4jLong zEws = shape::elementWiseStride(zShapeInfo); const char xOrder = shape::order(xShapeInfo); const char yOrder = shape::order(yShapeInfo); const char zOrder = shape::order(zShapeInfo); int temp; const bool xVectorOrC = shape::isCommonVector(xShapeInfo, temp) || xOrder == 'c'; const bool yVectorOrC = shape::isCommonVector(yShapeInfo, temp) || yOrder == 'c'; const bool zVectorOrC = shape::isCommonVector(zShapeInfo, temp) || zOrder == 'c'; const bool shapesSame = shape::shapeEquals(xShapeInfo, yShapeInfo, zShapeInfo); if (xEws == 1 && yEws == 1 && zEws == 1 && xOrder == yOrder && xOrder == zOrder && (shapesSame || xOrder == 'c')) return EWS1; if(xEws > 0 && yEws > 0 && zEws > 0 && ((xOrder == yOrder && xOrder == zOrder && (shapesSame || xOrder == 'c')) || (xVectorOrC && yVectorOrC && zVectorOrC))) return EWSNONZERO; if(xRank == 1 && shapesSame) return RANK1; if(xRank == 2 && shapesSame) return RANK2; if(xRank == 3 && shapesSame) return RANK3; if(xRank == 4 && shapesSame) return RANK4; if(xRank == 5 && shapesSame) return RANK5; if(xEws > 0 && xVectorOrC) return X_EWSNONZERO; if(yEws > 0 && yVectorOrC) return Y_EWSNONZERO; if(zEws > 0 && zVectorOrC) return Z_EWSNONZERO; return COMMON; } ////////////////////////////////////////////////////////////////////////////// LoopKind::Kind LoopKind::deduceKindOfLoopTadXZ(const Nd4jLong* xShapeInfo, const Nd4jLong* zShapeInfo, const Nd4jLong* tadShapeInfo) { const int xRank = shape::rank(xShapeInfo); const int tRank = shape::rank(tadShapeInfo); const Nd4jLong xEws = shape::elementWiseStride(xShapeInfo); const Nd4jLong tEws = shape::elementWiseStride(tadShapeInfo); const Nd4jLong zEws = shape::elementWiseStride(zShapeInfo); const char xOrder = shape::order(xShapeInfo); const char tOrder = shape::order(tadShapeInfo); const char zOrder = shape::order(zShapeInfo); const bool allC = (tOrder == zOrder && zOrder == 'c'); int temp; const bool tVectorOrC = shape::isCommonVector(tadShapeInfo, temp) || tOrder == 'c'; const bool zVectorOrC = shape::isCommonVector(zShapeInfo, temp) || zOrder == 'c';; if(shape::length(tadShapeInfo) * shape::length(zShapeInfo) <= Environment::getInstance()->elementwiseThreshold() && shape::rank(xShapeInfo) == 2 && xEws == 1 && xOrder == 'c' && xRank == 2 && tEws > 1 && zEws == 1 && (allC || (tVectorOrC && zVectorOrC))) return SMALLARR2DX; if(tEws == 1 && zEws == 1 && (allC || (tVectorOrC && zVectorOrC))) return EWS1; if(tEws > 0 && zEws > 0 && (allC || (tVectorOrC && zVectorOrC))) return EWSNONZERO; if(tRank == 1 && zEws == 1 && zVectorOrC) return RANK1; if(tRank == 2 && zEws == 1 && zVectorOrC) return RANK2; if(tRank == 3 && zEws == 1 && zVectorOrC) return RANK3; if(tRank == 4 && zEws == 1 && zVectorOrC) return RANK4; if(tRank == 5 && zEws == 1 && zVectorOrC) return RANK5; if(tEws > 0 && tVectorOrC && zEws == 0) return X_EWSNONZERO; if(zEws > 0 && zVectorOrC && tEws == 0) return Z_EWSNONZERO; return COMMON; } ////////////////////////////////////////////////////////////////////////////// LoopKind::Kind LoopKind::deduceKindOfLoopTadXYZ(const Nd4jLong* xTadShapeInfo, const Nd4jLong* yTadShapeInfo, const Nd4jLong* zShapeInfo) { // both tad shapes are the same, but strides and ews may be different const int tadRank = shape::rank(xTadShapeInfo); const Nd4jLong xTadEws = shape::elementWiseStride(xTadShapeInfo); const Nd4jLong yTadEws = shape::elementWiseStride(yTadShapeInfo); const Nd4jLong zEws = shape::elementWiseStride(zShapeInfo); const char xTadOrder = shape::order(xTadShapeInfo); const char yTadOrder = shape::order(xTadShapeInfo); const char zOrder = shape::order(zShapeInfo); int position; const bool xTadVectorOrC = shape::isCommonVector(xTadShapeInfo, position) || xTadOrder == 'c'; const bool yTadVectorOrC = shape::isCommonVector(yTadShapeInfo, position) || yTadOrder == 'c'; const bool zVectorOrC = shape::isCommonVector(zShapeInfo, position) || zOrder == 'c'; const bool allC = (xTadOrder == yTadOrder && xTadOrder == zOrder && zOrder == 'c'); if(xTadEws == 1 && yTadEws == 1 && zEws == 1 && allC) return EWS1; if(xTadEws > 0 && yTadEws > 0 && zEws > 0 && (allC || (xTadVectorOrC && yTadVectorOrC && zVectorOrC))) return EWSNONZERO; if(tadRank == 1 && zEws > 0 && zVectorOrC) return RANK1; if(tadRank == 2 && zEws > 0 && zVectorOrC) return RANK2; if(tadRank == 3 && zEws > 0 && zVectorOrC) return RANK3; if(tadRank == 4 && zEws > 0 && zVectorOrC) return RANK4; if(tadRank == 5 && zEws > 0 && zVectorOrC) return RANK5; return COMMON; } } #endif //LIBND4J_LOOPKIND_H