#include <PostsynapticPerspectiveStochasticDelivery.hpp>

Inheritance diagram for PV::PostsynapticPerspectiveStochasticDelivery:

BaseDelivery Parameters
List of parameters needed from the BaseDelivery class
virtual void	ioParam_channelCode (enum ParamsIOFlag ioFlag)
	channelCode: Specifies which channel in the post layer this connection is attached to More...

HyPerDeliveryFacade Parameters
List of parameters needed from the HyPerDeliveryFacade class
virtual void	ioParam_convertRateToSpikeCount (enum ParamsIOFlag ioFlag)
	convertRateToSpikeCount: If true, presynaptic activity is converted from a rate (spikes per second) to a count (number of spikes in the timestep). More...

PostsynapticPerspectiveStochasticDelivery Parameters
List of parameters needed from the PostsynapticPerspectiveStochasticDelivery class
virtual void	ioParam_receiveGpu (enum ParamsIOFlag ioFlag) override
	receiveGpu: PostsynapticPerspectiveStochasticDelivery always sets receiveGpu to false. The receiveGpu=true case is handled by the PostsynapticPerspectiveGPUDelivery class.

Public Types
enum	AccumulateType { UNDEFINED, CONVOLVE, STOCHASTIC }

Public Member Functions
	PostsynapticPerspectiveStochasticDelivery (char const name, HyPerCol hc)

virtual void	deliver () override

virtual void	deliverUnitInput (float *recvBuffer) override

ChannelType	getChannelCode () const

bool	getDataStructuresAllocatedFlag () const

std::string const &	getDescription () const

char const *	getDescription_c () const

bool	getInitialValuesSetFlag () const

bool	getInitInfoCommunicatedFlag () const

MPIBlock const *	getMPIBlock ()

char const *	getName () const

std::string const &	getObjectType () const

HyPerLayer *	getPostLayer () const

HyPerLayer *	getPreLayer () const

bool	getReceiveGpu () const

void	ioParams (enum ParamsIOFlag ioFlag, bool printHeader, bool printFooter)

virtual bool	isAllInputReady () override

bool	isUsingGPU () const

char const *	lookupKeyword () const

void	readParams ()

virtual Response::Status	registerData (Checkpointer *checkpointer)

virtual Response::Status	respond (std::shared_ptr< BaseMessage const > message) override

void	setConnectionData (ConnectionData *connectionData)

void	writeParams ()

Protected Member Functions
virtual Response::Status	allocateDataStructures () override

void	allocateThreadGSyn ()

virtual Response::Status	cleanup ()

virtual Response::Status	communicateInitInfo (std::shared_ptr< CommunicateInitInfoMessage const > message) override

double	convertToRateDeltaTimeFactor (double timeConstantTau) const

virtual Response::Status	copyInitialStateToGPU ()

int	initialize (char const name, HyPerCol hc)

virtual Response::Status	initializeState ()

virtual int	ioParamsFillGroup (enum ParamsIOFlag ioFlag) override

virtual Response::Status	prepareCheckpointWrite ()

virtual Response::Status	processCheckpointRead ()

virtual Response::Status	readStateFromCheckpoint (Checkpointer *checkpointer) override

Response::Status	respondAllocateData (std::shared_ptr< AllocateDataMessage const > message)

Response::Status	respondCleanup (std::shared_ptr< CleanupMessage const > message)

Response::Status	respondCommunicateInitInfo (std::shared_ptr< CommunicateInitInfoMessage const > message)

Response::Status	respondCopyInitialStateToGPU (std::shared_ptr< CopyInitialStateToGPUMessage const > message)

Response::Status	respondInitializeState (std::shared_ptr< InitializeStateMessage const > message)

Response::Status	respondPrepareCheckpointWrite (std::shared_ptr< PrepareCheckpointWriteMessage const > message)

Response::Status	respondProcessCheckpointRead (std::shared_ptr< ProcessCheckpointReadMessage const > message)

Response::Status	respondReadStateFromCheckpoint (std::shared_ptr< ReadStateFromCheckpointMessage< Checkpointer > const > message)

Response::Status	respondRegisterData (std::shared_ptr< RegisterDataMessage< Checkpointer > const > message)

Response::Status	respondSetCudaDevice (std::shared_ptr< SetCudaDeviceMessage const > message)

virtual Response::Status	setCudaDevice (std::shared_ptr< SetCudaDeviceMessage const > message)

void	setDataStructuresAllocatedFlag ()

void	setDescription ()

void	setInitialValuesSetFlag ()

void	setInitInfoCommunicatedFlag ()

int	setName (char const *name)

virtual void	setObjectType () override

int	setParent (HyPerCol *hc)

Protected Attributes
std::string	description

AccumulateType	mAccumulateType = CONVOLVE

ArborList *	mArborList = nullptr

ChannelType	mChannelCode = CHANNEL_EXC

ConnectionData *	mConnectionData = nullptr

bool	mConvertRateToSpikeCount = false

PVCuda::CudaDevice *	mCudaDevice = nullptr

bool	mDataStructuresAllocatedFlag = false

float	mDeltaTimeFactor = 1.0f

bool	mInitialValuesSetFlag = false

bool	mInitInfoCommunicatedFlag = false

std::string	mObjectType

HyPerLayer *	mPostLayer = nullptr

HyPerLayer *	mPreLayer = nullptr

Random *	mRandState = nullptr

bool	mReceiveGpu = false

bool	mUpdateGSynFromPostPerspective = false

bool	mUsingGPUFlag = false

WeightsPair *	mWeightsPair = nullptr

char *	name = nullptr

HyPerCol *	parent = nullptr

Detailed Description

The delivery class for HyPerConns using the postsynaptic perspective on the CPU, with accumulate type "convolve".

Definition at line 19 of file PostsynapticPerspectiveStochasticDelivery.hpp.

Member Function Documentation

void PV::PostsynapticPerspectiveStochasticDelivery::deliver ( )

overridevirtual

The method that delivers presynaptic activity to the given postsynaptic channel. It loops over presynaptic neurons, skipping over any whose activity is zero (to take advantage of sparsity). Each neuron then modifies the region of the post channel that the weights argument specifies for that pre-synaptic neuron.

If OpenMP is used, we parallelize over the presynaptic neuron. To avoid the possibility of collisions where more than one pre-neuron writes to the same post-neuron, we internally allocate multiple buffers the size of the post channel, and accumulate them at the end.

Implements PV::HyPerDelivery.

Definition at line 66 of file PostsynapticPerspectiveStochasticDelivery.cpp.

bool PV::BaseObject::getDataStructuresAllocatedFlag ( ) const

inlineinherited

Get-method for mDataStructuresAllocatedFlag, which is false on initialization and then becomes true once setDataStructuresAllocatedFlag() is called.

Definition at line 102 of file BaseObject.hpp.

bool PV::BaseObject::getInitialValuesSetFlag ( ) const

inlineinherited

Get-method for mInitialValuesSetFlag, which is false on initialization and then becomes true once setInitialValuesSetFlag() is called.

Definition at line 108 of file BaseObject.hpp.

bool PV::BaseObject::getInitInfoCommunicatedFlag ( ) const

inlineinherited

Get-method for mInitInfoCommunicatedFlag, which is false on initialization and then becomes true once setInitInfoCommunicatedFlag() is called.

Definition at line 95 of file BaseObject.hpp.

void PV::BaseDelivery::ioParam_channelCode ( enum ParamsIOFlag ioFlag )

protectedvirtualinherited

channelCode: Specifies which channel in the post layer this connection is attached to

Channels can be -1 for no update, or >= 0 for channel number.
0 is excitatory, 1 is inhibitory

Definition at line 29 of file BaseDelivery.cpp.

void PV::HyPerDelivery::ioParam_convertRateToSpikeCount ( enum ParamsIOFlag ioFlag )

protectedvirtualinherited

convertRateToSpikeCount: If true, presynaptic activity is converted from a rate (spikes per second) to a count (number of spikes in the timestep).

If this flag is true and the presynaptic layer is not spiking, the activity will be interpreted as a spike rate, and will be converted to a spike count when delivering activity to the postsynaptic GSyn buffer. If this flag is false, activity will not be converted.

Definition at line 38 of file HyPerDelivery.cpp.

void PV::BaseObject::ioParams	(	enum ParamsIOFlag	ioFlag,
		bool	printHeader,
		bool	printFooter
	)

inherited

Method for reading or writing the params from group in the parent HyPerCol's parameters. The group from params is selected using the name of the connection.

If ioFlag is set to write, the printHeader and printFooter flags control whether a header and footer for the parameter group is produces. These flags are set to true for layers, connections, and probes; and set to false for weight initializers and normalizers. If ioFlag is set to read, the printHeader and printFooter flags are ignored.

Note that ioParams is not virtual. To add parameters in a derived class, override ioParamFillGroup.

Definition at line 74 of file BaseObject.cpp.

int PV::PostsynapticPerspectiveStochasticDelivery::ioParamsFillGroup ( enum ParamsIOFlag ioFlag )

overrideprotectedvirtual

The virtual method for reading parameters from the parent HyPerCol's parameters, and writing to the output params file.

Derived classes with additional parameters typically override ioParamsFillGroup to call the base class's ioParamsFillGroup method and then call ioParam_[parametername] for each of their parameters. The ioParam_[parametername] methods should call the parent HyPerCol's ioParamValue() and related methods, to ensure that all parameters that get read also get written to the outputParams-generated file.

Reimplemented from PV::HyPerDelivery.

Definition at line 33 of file PostsynapticPerspectiveStochasticDelivery.cpp.

bool PV::HyPerDelivery::isAllInputReady ( )

overridevirtualinherited

A virtual method to indicate whether the presynaptic layer's input is ready to be delivered.

Reimplemented from PV::BaseDelivery.

Definition at line 99 of file HyPerDelivery.cpp.

bool PV::BaseObject::isUsingGPU ( ) const

inlineinherited

Returns true if the object requires the GPU; false otherwise. HyPerCol will not initialize the GPU unless one of the objects in its hierarchy returns true

Definition at line 116 of file BaseObject.hpp.

char const * PV::BaseObject::lookupKeyword ( ) const

inherited

Look up the keyword of the params group with the same name as the object.

Definition at line 42 of file BaseObject.cpp.

void PV::BaseObject::readParams ( )

inlineinherited

A method that reads the parameters for the group whose name matches the name of the object. It, along with writeParams(), is a wrapper around ioParams, so that readParams and writeParams automatically run through the same parameters in the same order.

Definition at line 62 of file BaseObject.hpp.

void PV::BaseObject::setDataStructuresAllocatedFlag ( )

inlineprotectedinherited

This method sets mDataStructuresAllocatedFlag to true.

Definition at line 175 of file BaseObject.hpp.

void PV::BaseObject::setInitialValuesSetFlag ( )

inlineprotectedinherited

This method sets the flag returned by getInitialValuesSetFlag to true.

Definition at line 180 of file BaseObject.hpp.

void PV::BaseObject::setInitInfoCommunicatedFlag ( )

inlineprotectedinherited

This method sets mInitInfoCommunicatedFlag to true.

Definition at line 170 of file BaseObject.hpp.

void PV::BaseObject::writeParams ( )

inlineinherited

A method that writes the parameters for the group whose name matches the name of the object. It, along with readParams(), is a wrapper around ioParams, so that readParams and writeParams automatically run through the same parameters in the same order.

Definition at line 69 of file BaseObject.hpp.

The documentation for this class was generated from the following files:

OpenPV/src/delivery/PostsynapticPerspectiveStochasticDelivery.hpp
OpenPV/src/delivery/PostsynapticPerspectiveStochasticDelivery.cpp

BaseDelivery Parameters

HyPerDeliveryFacade Parameters

PostsynapticPerspectiveStochasticDelivery Parameters

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation