wehub-resource-sync
353 lines
13 KiB
C++
353 lines
13 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, created on 07.10.2017.
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// @author GS <sgazeos@gmail.com>, modified
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// @author Yurii Shyrma (iuriish@yahoo.com), fully rewritten
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//
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#include <system/op_boilerplate.h>
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#if NOT_EXCLUDED(OP_matmul)
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#include <helpers/MmulHelper.h>
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#include <ops/declarable/CustomOperations.h>
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namespace sd {
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namespace ops {
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//////////////////////////////////////////////////////////////////////
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CUSTOM_OP_IMPL(matmul, 2, 1, false, 0, -2) {
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auto x = INPUT_VARIABLE(0);
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auto y = INPUT_VARIABLE(1);
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auto z = OUTPUT_VARIABLE(0);
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if(x->isEmpty() || y->isEmpty())
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return Status::OK;
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int iSize = (int)block.getIArguments()->size();
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int transX = iSize > 0 ? INT_ARG(0) : 0;
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int transY = iSize > 1 ? INT_ARG(1) : 0;
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const int transZ = iSize > 2 ? INT_ARG(2) : 0;
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// optional use alpha nad beta
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iSize = (int)block.getTArguments()->size();
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double alpha = iSize > 0 ? T_ARG(0) : 1.0;
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double beta = iSize > 1 ? T_ARG(1) : 0.0;
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if (transZ) {
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x = INPUT_VARIABLE(1);
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y = INPUT_VARIABLE(0);
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bool temp = transX;
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transX = !transY;
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transY = !temp;
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}
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// Compute ranks AFTER potential transZ swap
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const int xRank = x->rankOf();
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const int yRank = y->rankOf();
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const int zRank = z->rankOf();
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const int xLastDim = transX ? -2 : -1;
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const int yLastDim = transY ? -2 : -1;
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const int xLastButOneDim = transX ? -1 : -2;
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const int yLastButOneDim = transY ? -1 : -2;
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// ******* input validation ******* //
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REQUIRE_TRUE(xRank > 0 && yRank > 0, 0,
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"MATMUL OP: input arrays must have rank bigger than 0 (should not be scalars), but got instead: x rank "
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"= %i, y rank = %i !",
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xRank, yRank);
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// Handle rank mismatch when one input has singleton leading dimensions
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// This supports ONNX Gemm patterns like [1,1,1,768] x [768,768] -> [1,1,1,768]
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NDArray* xReshaped = nullptr;
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NDArray* yReshaped = nullptr;
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NDArray* zReshaped = nullptr;
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if (xRank != yRank && xRank > 2 && yRank == 2) {
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// Check if x has all singleton leading dims
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bool allLeadingSingleton = true;
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for (int i = 0; i < xRank - 2; ++i) {
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if (x->sizeAt(i) != 1) {
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allLeadingSingleton = false;
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break;
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}
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}
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if (allLeadingSingleton) {
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// Reshape x from [1,1,...,M,K] to [M,K] for matmul
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std::vector<LongType> newXShape = {x->sizeAt(-2), x->sizeAt(-1)};
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xReshaped = new NDArray(x->reshape(x->ordering(), newXShape));
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// Reshape z from [1,1,...,M,N] to [M,N]
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std::vector<LongType> newZShape = {z->sizeAt(-2), z->sizeAt(-1)};
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zReshaped = new NDArray(z->reshape(z->ordering(), newZShape));
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x = xReshaped;
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z = zReshaped;
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}
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} else if (xRank != yRank && yRank > 2 && xRank == 2) {
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// Check if y has all singleton leading dims
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bool allLeadingSingleton = true;
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for (int i = 0; i < yRank - 2; ++i) {
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if (y->sizeAt(i) != 1) {
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allLeadingSingleton = false;
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break;
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}
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}
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if (allLeadingSingleton) {
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// Reshape y from [1,1,...,K,N] to [K,N] for matmul
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std::vector<LongType> newYShape = {y->sizeAt(-2), y->sizeAt(-1)};
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yReshaped = new NDArray(y->reshape(y->ordering(), newYShape));
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// Reshape z from [1,1,...,M,N] to [M,N]
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std::vector<LongType> newZShape = {z->sizeAt(-2), z->sizeAt(-1)};
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zReshaped = new NDArray(z->reshape(z->ordering(), newZShape));
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y = yReshaped;
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z = zReshaped;
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}
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}
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// Update ranks after potential reshaping
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const int xRankFinal = x->rankOf();
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const int yRankFinal = y->rankOf();
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const int zRankFinal = z->rankOf();
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if (xRankFinal == 1 && yRankFinal == 1) { // dot case, output is scalar (or vector with length = 1)
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REQUIRE_TRUE(x->lengthOf() == y->lengthOf(), 0,
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"MATMUL OP: since input arrays are vectors they must have the same length, but got x length = %i, y "
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"length = %i !",
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x->lengthOf(), y->lengthOf());
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} else if (xRankFinal == 1 && yRankFinal == 2) { // vector x matrix, i.e. [4] x [4,5] = [5], output is vector
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REQUIRE_TRUE(x->lengthOf() == y->sizeAt(yLastButOneDim), 0,
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"MATMUL OP: input arrays have inconsistent shapes for vector-matrix product: x %s, y %s !",
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ShapeUtils::shapeAsString(x).c_str(), ShapeUtils::shapeAsString(y).c_str());
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} else if (xRankFinal == 2 && yRankFinal == 1) { // matrix x vector , i.e. [4,5] x [5] = [4], output is vector
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REQUIRE_TRUE(x->sizeAt(xLastDim) == y->lengthOf(), 0,
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"MATMUL OP: input arrays have inconsistent shapes for matrix-vector product: x %s, y %s !",
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ShapeUtils::shapeAsString(x).c_str(), ShapeUtils::shapeAsString(y).c_str());
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} else {
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REQUIRE_TRUE(xRankFinal == yRankFinal && yRankFinal == zRankFinal, 0,
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"MATMUL OP: input and output arrays must have the same rank, but got instead: x rank = %i, y rank = "
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"%i, z rank = %i !",
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xRankFinal, yRankFinal, zRankFinal);
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REQUIRE_TRUE(x->sizeAt(xLastDim) == y->sizeAt(yLastButOneDim) && x->sizeAt(xLastButOneDim) == z->sizeAt(-2) &&
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y->sizeAt(yLastDim) == z->sizeAt(-1),
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0, "MATMUL OP: input/output arrays have inconsistent shapes for matrix product: x %s, y %s, z %s !",
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ShapeUtils::shapeAsString(x).c_str(), ShapeUtils::shapeAsString(y).c_str(),
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ShapeUtils::shapeAsString(z).c_str());
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if (xRankFinal > 2) // outer dims must be the same
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for (int i = 0; i < xRankFinal - 2; ++i)
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REQUIRE_TRUE(x->sizeAt(i) == y->sizeAt(i) && y->sizeAt(i) == z->sizeAt(i), 0,
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"MATMUL OP: input/output arrays have inconsistent shapes for matrix product: x %s, y %s, z %s !",
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ShapeUtils::shapeAsString(x).c_str(), ShapeUtils::shapeAsString(y).c_str(),
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ShapeUtils::shapeAsString(z).c_str());
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}
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// ******* end of input validation ******* //
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MmulHelper::matmul(x, y, z, transX, transY, alpha, beta, z);
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// Clean up reshaped arrays
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delete xReshaped;
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delete yReshaped;
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delete zReshaped;
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return Status::OK;
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}
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DECLARE_SYN(mMul, matmul);
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DECLARE_SYN(mmul, matmul);
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DECLARE_SYN(gemm, matmul);
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DECLARE_SYN(gemv, matmul);
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DECLARE_SYN(dot, matmul);
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//////////////////////////////////////////////////////////////////////
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DECLARE_SHAPE_FN(matmul) {
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auto xShapeInfo = inputShape->at(0);
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auto yShapeInfo = inputShape->at(1);
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const int iSize = (int)block.getIArguments()->size();
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int transX = iSize > 0 ? INT_ARG(0) : 0;
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int transY = iSize > 1 ? INT_ARG(1) : 0;
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const int transZ = iSize > 2 ? INT_ARG(2) : 0;
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if (transZ) {
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xShapeInfo = inputShape->at(1);
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yShapeInfo = inputShape->at(0);
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bool temp = transX;
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transX = !transY;
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transY = !temp;
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}
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auto zShapeOnly = ShapeUtils::evalShapeForMatmul(xShapeInfo, yShapeInfo, transX, transY);
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auto dtypeX = ArrayOptions::dataType(xShapeInfo);
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auto dtypeY = ArrayOptions::dataType(yShapeInfo);
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auto xOrder = shape::order(xShapeInfo);
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auto yOrder = shape::order(yShapeInfo);
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auto zOrder = xOrder == 'c' && yOrder == 'c' ? 'c' : 'f';
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// we just pick the higher data type out of X and Y
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auto dtypeZ = dtypeX > dtypeY ? dtypeX : dtypeY;
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if(shape::isEmptyConst(xShapeInfo) || shape::isEmptyConst(yShapeInfo)) {
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return SHAPELIST(ConstantShapeHelper::getInstance().emptyShapeInfoWithShape(ArrayOptions::dataType(xShapeInfo),zShapeOnly));
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}
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auto newShape = ConstantShapeHelper::getInstance().createShapeInfo(dtypeZ, zOrder, zShapeOnly);
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return SHAPELIST(newShape);
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}
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//////////////////////////////////////////////////////////////////////
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DECLARE_TYPES(matmul) {
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getOpDescriptor()
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->setAllowedInputTypes(0, {ALL_FLOATS, ALL_INTS})
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->setAllowedInputTypes(1, {ALL_FLOATS, ALL_INTS})
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->setAllowedOutputTypes(0, {ALL_FLOATS, ALL_INTS});
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}
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//////////////////////////////////////////////////////////////////////
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CUSTOM_OP_IMPL(matmul_bp, 3, 2, false, 0, -2) {
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auto x = INPUT_VARIABLE(0);
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auto y = INPUT_VARIABLE(1);
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auto eps = INPUT_VARIABLE(2);
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auto dldx = OUTPUT_VARIABLE(0);
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auto dldy = OUTPUT_VARIABLE(1);
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int iSize = (int)block.getIArguments()->size();
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int transX = iSize > 0 ? INT_ARG(0) : 0;
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int transY = iSize > 1 ? INT_ARG(1) : 0;
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const int transZ = iSize > 2 ? INT_ARG(2) : 0;
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// optional use alpha nad beta
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iSize = (int)block.getTArguments()->size();
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double alpha = iSize > 0 ? T_ARG(0) : 1.0;
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double beta = iSize > 1 ? T_ARG(1) : 0.0;
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/*
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In: x=[a,b], y=[b,c]
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tX tY tZ x y z dz dLdx dLdy
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F F F [a,b] [b,c] [a,c] [a,c] [a,c]*[b,c]T = [a,b] x*yT [a,b]T*[a,c] = [b,c] xT*y T F
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F [b,a] [b,c] [a,c] [a,c] ([a,c]*[b,c]T)T = [b,a] (x*yT)T [b,a]*[a,c] = [b,c] x*y F T
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F [a,b] [c,b] [a,c] [a,c] ([a,c]*[c,b]) = [a,b] x*y [a,b]T*[a,c] = [b,c] ->T xT*y T T
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F [b,a] [c,b] [a,c] [a,c] ([a,c]*[c,b])T = [b,a] (x*y)T [b,a]*[a,c] = [b,c] ->T x*y F F
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T [a,b] [b,c] [c,a] [c,a]
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*/
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// special case for scalar value
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if (eps->isScalar()) {
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if (x->isVector() && y->isVector()) {
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if (x->isRowVector() && y->isRowVector()) {
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float ySum = y->sumNumber().e<float>(0);
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NDArray *dldxTemp = (*eps) * ySum;
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dldx->assign(dldxTemp);
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delete dldxTemp;
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float xSum = x->sumNumber().e<float>(0);
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NDArray *dldyTemp = (*eps) * xSum;
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dldy->assign(dldyTemp);
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delete dldyTemp;
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} else if (x->isColumnVector() && y->isColumnVector()) {
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float ySum = y->sumNumber().e<float>(0);
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NDArray *dldxTemp = (*eps) * ySum;
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dldx->assign(dldxTemp);
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delete dldxTemp;
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float xSum = x->sumNumber().e<float>(0);
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NDArray *dldyTemp = (*eps) * xSum;
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dldy->assign(dldyTemp);
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delete dldyTemp;
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} else {
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NDArray *dldxTemp = (*eps) * (*y);
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dldx->assign(dldxTemp);
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delete dldxTemp;
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NDArray *dldyTemp = (*eps) * (*x);
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dldy->assign(dldyTemp);
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delete dldyTemp;
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}
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} else {
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// assign all ones to shape as baseline
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auto alphaBetaBase = 1.0f;
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if (alpha > 0.0f) {
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alphaBetaBase *= alpha;
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}
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if (beta > 0.0f) {
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alphaBetaBase += beta;
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}
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dldx->assign(alphaBetaBase);
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dldy->assign(alphaBetaBase);
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// match the dimensions for reduction for matrix multiply: columns on first input, rows on second input
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// the dimensions should match the matching dimensions to compute proper gradients wrt each input
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// core gradient for each is sum(input) * eps as scalar
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std::vector<LongType> axesZero({0});
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NDArray *xSum = x->reduceAlongDimension(reduce::Sum, &axesZero);
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NDArray *xSumScaled = *xSum * (*eps);
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std::vector<sd::LongType> xSumShape = {xSumScaled->lengthOf(), 1};
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NDArray* xSumRow = xSumScaled->reshape(xSumScaled->ordering(), xSumShape);
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std::vector<LongType> axes({1});
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NDArray *ySum = y->reduceAlongDimension(reduce::Sum, &axes);
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NDArray *ySumScaled = *ySum * (*eps);
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std::vector<sd::LongType> ySumShape = {1, ySumScaled->lengthOf()};
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NDArray* ySumRow = ySumScaled->reshape(ySumScaled->ordering(), ySumShape);
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// execute proper multiplication: rows for first input, columns for second
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dldx->mulRowVector(ySumRow, dldx);
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dldy->muliColumnVector(xSumRow);
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// FIXED: Proper cleanup - delete each allocated array once, add missing cleanup
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delete xSumRow;
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delete xSumScaled;
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delete xSum;
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delete ySumRow;
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delete ySumScaled;
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delete ySum;
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}
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return Status::OK;
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}
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matmul op;
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op.execute({eps, y}, {dldx}, {alpha, beta}, {transZ, !transY, transX}, {});
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op.execute({x, eps}, {dldy}, {alpha, beta}, {!transX, transZ, transY}, {});
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return Status::OK;
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}
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//////////////////////////////////////////////////////////////////////
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DECLARE_SHAPE_FN(matmul_bp) {
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return SHAPELIST(CONSTANT(inputShape->at(0)), CONSTANT(inputShape->at(1)));
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}
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//////////////////////////////////////////////////////////////////////
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DECLARE_TYPES(matmul_bp) {
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getOpDescriptor()
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->setAllowedInputTypes(0, {ALL_FLOATS})
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->setAllowedInputTypes(1, {ALL_FLOATS})
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->setAllowedInputTypes(2, {ALL_FLOATS})
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->setAllowedOutputTypes(0, {ALL_FLOATS})
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->setAllowedOutputTypes(1, {ALL_FLOATS});
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}
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} // namespace ops
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} // namespace sd
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#endif
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