Inheritance diagram for SpikingSynapses:

Public Member Functions
virtual void	AddGroup (int presynaptic_group_id, int postsynaptic_group_id, Neurons neurons, Neurons input_neurons, float timestep, synapse_parameters_struct *synapse_params)
virtual void	allocate_device_pointers ()
virtual void	copy_constants_and_initial_efficacies_to_device ()
virtual void	reset_synapse_activities ()
virtual void	set_threads_per_block_and_blocks_per_grid (int threads)
virtual void	increment_number_of_synapses (int increment)
virtual void	shuffle_synapses ()
virtual void	update_synaptic_conductances (float timestep, float current_time_in_seconds)
virtual void	calculate_postsynaptic_current_injection (SpikingNeurons *neurons, float current_time_in_seconds, float timestep)
virtual void	interact_spikes_with_synapses (SpikingNeurons neurons, SpikingNeurons input_neurons, float current_time_in_seconds, float timestep)
Public Attributes
int *	delays
bool *	stdp
int *	d_delays
bool *	d_stdp
int *	d_spikes_travelling_to_synapse
float *	d_time_of_last_spike_to_reach_synapse
int	maximum_axonal_delay_in_timesteps

Member Function Documentation

virtual void SpikingSynapses::AddGroup	(	int	presynaptic_group_id,
		int	postsynaptic_group_id,
		Neurons *	neurons,
		Neurons *	input_neurons,
		float	timestep,
		synapse_parameters_struct *	synapse_params
	)		`[virtual]`

Determines the synaptic connections to add to the simulation connectivity. This is a virtual function to allow polymorphism in the methods of various sub-class implementations. Allocates memory as necessary for group size and indices storage.

Parameters:

presynaptic_group_id	An int ID of the presynaptic neuron population (ID is < 0 if presynaptic population is an InputSpikingNeuron population)
postsynaptic_group_id	An int ID of the postsynaptic neuron population.
neurons	A pointer to an instance of the Neurons class (or sub-class) which is included in this simulation.
input_neurons	A pointer to an instance of the Neurons class (or sub-class) which is included in this simulation (for population indices < 0, i.e. InputSpikingNeurons).
timestep	A float indicating the timestep at which the simulator is running.
synapse_params	A synapse_parameters_struct pointer describing the connectivity arrangement to be added between the pre and postsynaptic neuron populations.

Reimplemented from Synapses.

Reimplemented in ConductanceSpikingSynapses, and CurrentSpikingSynapses.

virtual void SpikingSynapses::allocate_device_pointers ( ) [virtual]

Exclusively for the allocation of device memory. This class allocates device pointers for presynaptic and postsynaptic neuron ids, synaptic efficacies/weights, and the number of synaptic connections to the postsynaptic neuron.

Reimplemented from Synapses.

Reimplemented in ConductanceSpikingSynapses.

virtual void SpikingSynapses::copy_constants_and_initial_efficacies_to_device ( ) [virtual]

Allows copying of static data related to neuron dynamics to the device. Copies synapse pre/post ids, efficies/weights, and number of postsynaptic contacts on postsynaptic neuron.

Reimplemented from Synapses.

Reimplemented in ConductanceSpikingSynapses.

virtual void SpikingSynapses::increment_number_of_synapses ( int increment ) [virtual]

A function called in to reallocate memory for a given number more synapses. /param increment The number of synapses for which allocated memory must be expanded.

Reimplemented from Synapses.

Reimplemented in ConductanceSpikingSynapses.

virtual void SpikingSynapses::set_threads_per_block_and_blocks_per_grid ( int threads ) [virtual]

A local, function called in to determine the CUDA Device thread (Synapses::threads_per_block) and block dimensions (Synapses::number_of_synapse_blocks_per_grid).

Reimplemented from Synapses.

Reimplemented in ConductanceSpikingSynapses.

virtual void SpikingSynapses::shuffle_synapses ( ) [virtual]

A function to shuffle the order of synapse array storage for increased GPU memory write speeds. Currently Unused.

Reimplemented from Synapses.

Reimplemented in ConductanceSpikingSynapses.

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

Synapses/SpikingSynapses.h

Public Member Functions

Public Attributes

Member Function Documentation