244 lines
8.7 KiB
C++
244 lines
8.7 KiB
C++
/*******************************************************************************
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* Copyright (c) 2015-2018 Skymind, Inc.
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* Copyright (c) 2019-2020 Konduit K.K.
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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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// @author raver119@gmail.com
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//
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#ifndef LIBND4J_CONTEXT_H
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#define LIBND4J_CONTEXT_H
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#include <vector>
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#include <array/NDArray.h>
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#include <graph/Variable.h>
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#include <graph/VariableSpace.h>
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#include <graph/ContextPrototype.h>
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#include <memory/Workspace.h>
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#include <execution/Engine.h>
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// CUDA-specific includes
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#ifdef __CUDACC__
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#include <cuda.h>
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#include <cuda_runtime_api.h>
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#include <cuda_runtime.h>
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#include <cuda_device_runtime_api.h>
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#endif
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namespace sd {
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namespace graph {
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/**
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* This class defines input desired for any given node/operation within graph
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*/
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class ND4J_EXPORT Context : public sd::graph::ContextPrototype {
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protected:
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sd::memory::Workspace* _workspace = nullptr;
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sd::graph::VariableSpace* _variableSpace = nullptr;
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std::pair<Nd4jLong, Nd4jLong> _executionTime;
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sd::random::RandomBuffer* _rng = nullptr;
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sd::DataType _dataType = sd::DataType::FLOAT32;
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// branch for divergent_op
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int _branch = 0;
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// temporary context for standalone ops execution
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LaunchContext* _context = nullptr;
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std::vector<sd::DataType> _dataTypes;
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// fields for fast execution (out-of-graph ops use)
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std::vector<NDArray*> _fastpath_in;
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std::vector<NDArray*> _fastpath_out;
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std::vector<NDArray*> _handles;
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bool _helpersAllowed = true;
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// in some cases we might be able to skip shape function for validation purposes
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bool _shapeFunctionOverride = false;
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// special flag used during conversion from Graph exec to FastPath exec
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bool _forbidFastPath = false;
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public:
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Context(ContextPrototype* prototype, VariableSpace* variableSpace);
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explicit Context(int nodeId, VariableSpace *variableSpace = nullptr);
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Context(int nodeId, VariableSpace *variableSpace, bool isInplace);
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// default destructor
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~Context();
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// these methods are for execution timing
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void setOuterTime(Nd4jLong time);
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void setInnerTime(Nd4jLong time);
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Nd4jLong getOuterTime();
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Nd4jLong getInnerTime();
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sd::DataType dataType() override;
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sd::DataType dataType(int index) override;
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void setDataType(int index, sd::DataType type) override;
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// these methods are related to Workspace abstraction
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bool hasWorkspaceProvided();
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void attachWorkspace(sd::memory::Workspace* workspace);
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void forgetWorkspace();
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// these methods return full-time workspace
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sd::memory::Workspace* getWorkspace();
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sd::memory::Workspace* workspace();
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sd::memory::Workspace* fWorkspace();
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// this method returns workspace for temporary allocations
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sd::memory::Workspace* tWorkspace();
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// this method returns workspace for object allocations
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sd::memory::Workspace* oWorkspace();
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void setVariableSpace(VariableSpace* variableSpace);
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sd::random::RandomBuffer* getRNG();
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void setRNG(sd::random::RandomBuffer* rng);
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void setTargetEngine(samediff::Engine engine);
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VariableSpace *getVariableSpace();
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LaunchContext* launchContext();
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// these fields define, if we can execute specific node in-place, without generating new array
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// these variables are only for Divergent Nodes
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int getBranch();
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void setBranch(int branch);
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/**
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*
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* @return
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*/
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Stash* getStash();
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/**
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*
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*/
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void trackList(NDArrayList* list);
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/**
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* This method returns variable for a given input index for this block
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* @param idx
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* @return
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*/
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Variable* getVariable(int idx);
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Variable* variable(int idx);
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/**
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* This method is shortcut to getVariable(int idx);
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*
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* + it check fastpath for array availability (preferred)
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* @return
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*/
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NDArray* getNDArray(int idx);
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NDArray* array(int idx);
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/**
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* This method fetches variable from VariableSpace DIRECTLY
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* @param p
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* @return
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*/
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Variable* variable(int node, int index);
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Variable* variable(std::pair<int,int>& p);
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Variable* variable(std::initializer_list<int> p);
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void pushNDArrayToVariableSpace(int nodeId, int index, NDArray* array, bool removable = true);
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void pushNDArrayToVariableSpace(std::pair<int, int>& pair, NDArray* array, bool removable = true);
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void pushNDArrayListToVariableSpace(int nodeId, int index, NDArrayList* list, bool track = true);
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void pushNDArrayListToVariableSpace(std::pair<int, int>& pair, NDArrayList* list, bool track = true);
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bool isValueAvailable(int idx = 0);
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Variable* ensureVariable(int idx = 0);
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unsigned long width() override;
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// methods used in java interop
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/**
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* This method checks if Context uses fastpath variable access
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* @return
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*/
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bool isFastPath();
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/**
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* Method allows to forbid FastPath execution
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* @param reallyForbid
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*/
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void forbidFastPath(bool reallyForbid);
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#ifndef __JAVACPP_HACK__
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std::vector<NDArray*>& fastpath_in();
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std::vector<NDArray*>& fastpath_out();
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#endif
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void setInputArray(int index, NDArray *array, bool removable = false);
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void setInputArray(int index, void *buffer, void const* shapeInfo, void *specialBuffer, void const* specialShapeInfo);
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void setInputArray(int index, void *buffer, void * shapeInfo, void *specialBuffer, void * specialShapeInfo);
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void setInputArray(int index, void *databuffer, void const* shapeInfo, void const* specialShapeInfo);
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void setOutputArray(int index, NDArray *array, bool removable = false);
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void setOutputArray(int index, void *buffer, const void * shapeInfo, void *specialBuffer, const void * specialShapeInfo);
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void setOutputArray(int index, void *buffer, void * shapeInfo, void *specialBuffer, void * specialShapeInfo);
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void setOutputArray(int index, void *databuffer, void const* shapeInfo, void const* specialShapeInfo);
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void setTArguments(double *arguments, int numberOfArguments);
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void setIArguments(Nd4jLong *arguments, int numberOfArguments);
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void setBArguments(bool *arguments, int numberOfArguments);
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void setDArguments(sd::DataType *arguments, int numberOfArguments);
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void setTArguments(const std::vector<double> &tArgs);
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void setIArguments(const std::vector<Nd4jLong> &tArgs);
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void setBArguments(const std::vector<bool> &tArgs);
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void setDArguments(const std::vector<sd::DataType> &dArgs);
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/**
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* This method purges fastpath in/out contents and releases all the handles.
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*
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* PLEASE NOTE: I/T/B/D args will stay intact
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*/
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void clearFastPath();
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void setCudaContext(Nd4jPointer cudaStream, Nd4jPointer reductionPointer, Nd4jPointer allocationPointer);
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void allowHelpers(bool reallyAllow);
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bool helpersAllowed();
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void setShapeFunctionOverride(bool reallyOverride);
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bool shapeFunctionOverride();
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samediff::ExecutionMode executionMode();
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void setExecutionMode(samediff::ExecutionMode executionMode);
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bool isTraining();
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bool isInference();
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};
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}
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}
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#endif //LIBND4J_BLOCK_H
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