Alias op makes the output and the input share the same underlying storage. More...
#include <utility_ops.h>
Public Member Functions | |
USE_SIMPLE_CTOR_DTOR (AliasOp) | |
bool | RunOnDevice () override |
Public Member Functions inherited from caffe2::Operator< Context > | |
Operator (const OperatorDef &operator_def, Workspace *ws) | |
Operator (const c10::FunctionSchema &fn_schema, std::vector< c10::IValue > inputs, std::vector< at::Tensor > outputs) | |
const Tensor & | Input (int idx, DeviceType type=Context::GetDeviceType()) |
Retrieve a non-owning reference to the input at position 'idx' for this operator. More... | |
Tensor | XOutput (int idx, at::IntArrayRef dims, at::TensorOptions options) |
XOutput is a modernized version of Output which returns a Tensor rather than a Tensor* (the raw pointer in the latter case is useless, as Tensor is a pointer type.) | |
Public Member Functions inherited from caffe2::OperatorBase | |
OperatorBase (const OperatorDef &operator_def, Workspace *ws) | |
OperatorBase (const c10::FunctionSchema &schema, std::vector< c10::IValue > inputs, std::vector< at::Tensor > outputs) | |
bool | isLegacyOperator () const |
Return true if the operator was instantiated with OperatorDef New operators should be instantiated with FunctionSchema. | |
const c10::FunctionSchema & | getFunctionSchema () const |
bool | HasArgument (const string &name) const |
Checks if the operator has an argument of the given name. | |
template<typename T > | |
T | GetSingleArgument (const string &name, const T &default_value) const |
template<typename T > | |
bool | HasSingleArgumentOfType (const string &name) const |
template<typename T > | |
vector< T > | GetVectorFromIValueList (const c10::IValue &value) const |
template<typename T > | |
vector< T > | GetRepeatedArgument (const string &name, const vector< T > &default_value={}) const |
template<typename T > | |
const T & | Input (int idx) |
template<typename T > | |
const T & | Input (int idx, DeviceType type) |
template<typename T > | |
T * | Output (int idx) |
template<typename T > | |
T * | Output (int idx, DeviceType type) |
Tensor | XOutputTensor (int idx, at::IntArrayRef dims, at::TensorOptions options) |
void | SetOutputTensor (int idx, Tensor tensor) |
Tensor | OutputTensorOrUndefined (int idx) |
Tensor * | OutputTensor (int idx, at::IntArrayRef dims, at::TensorOptions options) |
Tensor * | OutputTensorCopyFrom (int idx, at::TensorOptions options, const Tensor &src, bool async=false) |
Tensor * | OutputTensorAlias (int idx, const Tensor &src) |
template<typename T > | |
T * | Output (int idx, T *allocated) |
const Blob & | InputBlob (int idx) |
Blob * | OutputBlob (int idx) |
bool | IsInputOutputAlias (int i, int j) |
template<typename T > | |
bool | InputIsType (int idx) |
bool | InputIsTensorType (int idx, DeviceType device_type) |
template<typename T > | |
bool | OutputIsType (int idx) |
bool | OutputIsTensorType (int idx, DeviceType type) |
int | InputSize () const |
int | OutputSize () const |
const vector< const Blob * > & | Inputs () const |
const vector< Blob * > & | Outputs () |
vector< TensorShape > | InputTensorShapes () const |
virtual void | WaitEvent (const Event &ev, int=-1) |
void | Wait (const OperatorBase &other, int stream_id=-1) |
virtual void | WaitEvents (const std::vector< const Event * > &events, int=-1) |
virtual void | Finish () |
virtual bool | Run (int=0) |
virtual bool | HasAsyncPart () const |
virtual bool | SupportsAsyncScheduling () const |
virtual bool | RunAsync (int stream_id=0) |
virtual void | AddRelatedBlobInfo (EnforceNotMet *err) |
const OperatorDef & | debug_def () const |
void | set_debug_def (const std::shared_ptr< const OperatorDef > &operator_def) |
bool | has_debug_def () const |
void | RecordLastFailedOpNetPosition () |
int | net_position () const |
void | set_net_position (int idx) |
const DeviceOption & | device_option () const |
const Event & | event () const |
Event & | event () |
void | ResetEvent () |
void | DisableEvent () |
bool | IsEventDisabled () const |
virtual void | SyncDeviceBarrierForObservers () |
virtual bool | IsStreamFree (int) const |
const std::string & | type () const |
void | annotate_engine (const std::string &engine) |
const std::string & | engine () const |
void | SetExecutorHelper (ExecutorHelper *helper) |
ExecutorHelper * | GetExecutorHelper () const |
std::vector< at::Tensor > | move_newstyle_outputs ()&& |
template<> | |
NetDef | GetSingleArgument (const std::string &name, const NetDef &default_value) const |
template<> | |
vector< int > | GetVectorFromIValueList (const c10::IValue &value) const |
template<> | |
vector< float > | GetVectorFromIValueList (const c10::IValue &value) const |
template<> | |
vector< string > | GetVectorFromIValueList (const c10::IValue &value) const |
Public Member Functions inherited from caffe2::Observable< OperatorBase > | |
Observable (Observable &&)=default | |
Observable & | operator= (Observable &&)=default |
C10_DISABLE_COPY_AND_ASSIGN (Observable) | |
const Observer * | AttachObserver (std::unique_ptr< Observer > observer) |
std::unique_ptr< Observer > | DetachObserver (const Observer *observer_ptr) |
Returns a unique_ptr to the removed observer. More... | |
virtual size_t | NumObservers () |
void | StartAllObservers () |
void | StopAllObservers () |
Data Fields | |
USE_OPERATOR_CONTEXT_FUNCTIONS | |
Additional Inherited Members | |
Public Types inherited from caffe2::Observable< OperatorBase > | |
using | Observer = ObserverBase< OperatorBase > |
Static Public Attributes inherited from caffe2::OperatorBase | |
static const int | kNoNetPositionSet = -1 |
Protected Member Functions inherited from caffe2::OperatorBase | |
virtual void | RecordEvent (const char *=nullptr) |
void | SetEventFinished (const char *err_msg=nullptr) |
void | SetEventFinishedWithException (const char *err_msg=nullptr) |
std::string | getErrorMsg () |
C10_DISABLE_COPY_AND_ASSIGN (OperatorBase) | |
Protected Attributes inherited from caffe2::OperatorBase | |
std::unique_ptr< Event > | event_ |
Protected Attributes inherited from caffe2::Observable< OperatorBase > | |
std::vector< std::unique_ptr< Observer > > | observers_list_ |
Alias op makes the output and the input share the same underlying storage.
WARNING: in general, in caffe2's operator interface different tensors should have different underlying storage, which is the assumption made by components such as the dependency engine and memory optimization. Thus, in normal situations you should not use the AliasOp, especially in a normal forward-backward pass.
The Alias op is provided so one can achieve true asynchrony, such as Hogwild, in a graph. But make sure you understand all the implications similar to multi-thread computation before you use it explicitly.
Definition at line 190 of file utility_ops.h.