This file contains the main interface for structural plasticity and some shared code. For the main implementation, see topographic_map_impl.c. More...

#include "synapse_dynamics.h"
#include <neuron/synapses.h>
#include <debug.h>
#include <utils.h>

Functions
bool	synapse_dynamics_initialise (address_t address, uint32_t n_neurons, uint32_t n_synapse_types, uint32_t *ring_buffer_to_input_buffer_left_shifts)
	Initialise the synapse dynamics. More...

void	synapse_dynamics_process_post_synaptic_event (uint32_t time, index_t neuron_index)
	Inform the synapses that the neuron fired. More...

bool	synapse_dynamics_process_plastic_synapses (synapse_row_plastic_data_t plastic_region_data, synapse_row_fixed_part_t fixed_region, weight_t ring_buffer, uint32_t time, uint32_t colour_delay, bool write_back)
	Process the dynamics of the synapses. More...

void	synapse_dynamics_print_plastic_synapses (synapse_row_plastic_data_t plastic_region_data, synapse_row_fixed_part_t fixed_region, uint32_t *ring_buffer_to_input_left_shifts)
	Print the synapse dynamics. More...

uint32_t	synapse_dynamics_get_plastic_pre_synaptic_events (void)
	Get the counters for plastic pre synaptic events based on (if the model was compiled with SYNAPSE_BENCHMARK parameter) or returns 0. More...

uint32_t	synapse_dynamics_get_plastic_saturation_count (void)
	Get the number of ring buffer saturation events due to adding plastic weights. More...

bool	synapse_dynamics_find_neuron (uint32_t id, synaptic_row_t row, weight_t weight, uint16_t delay, uint32_t offset, uint32_t synapse_type)
	Search the synaptic row for the the connection with the specified post-synaptic ID. More...

bool	synapse_dynamics_remove_neuron (uint32_t offset, synaptic_row_t row)
	Remove the entry at the specified offset in the synaptic row. More...

bool	synapse_dynamics_add_neuron (uint32_t id, synaptic_row_t row, weight_t weight, uint32_t delay, uint32_t type)
	Add an entry in the synaptic row. More...

uint32_t	synapse_dynamics_n_connections_in_row (synapse_row_fixed_part_t *fixed)
	Get the number of connections in the given row. More...

Detailed Description

This file contains the main interface for structural plasticity and some shared code. For the main implementation, see topographic_map_impl.c.

Author: Petrut Bogdan

Definition in file synapse_dynamics_static_impl.c.

Function Documentation

◆ synapse_dynamics_initialise()

bool synapse_dynamics_initialise	(	address_t	address,
		uint32_t	n_neurons,
		uint32_t	n_synapse_types,
		uint32_t *	ring_buffer_to_input_buffer_left_shifts
	)

Initialise the synapse dynamics.

Parameters

[in]	address	Where the configuration data is
[in]	n_neurons	Number of neurons
[in]	n_synapse_types	Number of synapse types
[in]	ring_buffer_to_input_buffer_left_shifts	How to interpret the values from the ring buffers

Returns: Whether the initialisation succeeded.

Definition at line 29 of file synapse_dynamics_static_impl.c.

◆ synapse_dynamics_process_post_synaptic_event()

void synapse_dynamics_process_post_synaptic_event	(	uint32_t	time,
		index_t	neuron_index
	)

Inform the synapses that the neuron fired.

Parameters

[in]	time	The current simulation time
[in]	neuron_index	Which neuron are we processing

Definition at line 37 of file synapse_dynamics_static_impl.c.

◆ synapse_dynamics_process_plastic_synapses()

bool synapse_dynamics_process_plastic_synapses	(	synapse_row_plastic_data_t *	plastic_region_data,
		synapse_row_fixed_part_t *	fixed_region,
		weight_t *	ring_buffers,
		uint32_t	time,
		uint32_t	colour_delay,
		bool *	write_back
	)

Process the dynamics of the synapses.

Parameters

[in,out]	plastic_region_data	Where the plastic data is
[in]	fixed_region	Where the fixed data is
[in,out]	ring_buffers	The ring buffers
[in]	time	The current simulation time
[out]	Whether	to write back anything

Returns: Whether the processing was successful or not

Definition at line 42 of file synapse_dynamics_static_impl.c.

◆ synapse_dynamics_print_plastic_synapses()

void synapse_dynamics_print_plastic_synapses	(	synapse_row_plastic_data_t *	plastic_region_data,
		synapse_row_fixed_part_t *	fixed_region,
		uint32_t *	ring_buffer_to_input_buffer_left_shifts
	)

Print the synapse dynamics.

Parameters

[in]	plastic_region_data	Where the plastic data is
[in]	fixed_region	Where the fixed data is
[in]	ring_buffer_to_input_buffer_left_shifts	How to interpret the values from the ring buffers

Definition at line 52 of file synapse_dynamics_static_impl.c.

◆ synapse_dynamics_get_plastic_pre_synaptic_events()

uint32_t synapse_dynamics_get_plastic_pre_synaptic_events ( void )

Get the counters for plastic pre synaptic events based on (if the model was compiled with SYNAPSE_BENCHMARK parameter) or returns 0.

Returns: counters for plastic pre synaptic events or 0

Definition at line 58 of file synapse_dynamics_static_impl.c.

◆ synapse_dynamics_get_plastic_saturation_count()

uint32_t synapse_dynamics_get_plastic_saturation_count ( void )

Get the number of ring buffer saturation events due to adding plastic weights.

Returns: counter for saturation events or 0

Definition at line 62 of file synapse_dynamics_static_impl.c.

◆ synapse_dynamics_find_neuron()

bool synapse_dynamics_find_neuron	(	uint32_t	id,
		synaptic_row_t	row,
		weight_t *	weight,
		uint16_t *	delay,
		uint32_t *	offset,
		uint32_t *	synapse_type
	)

Search the synaptic row for the the connection with the specified post-synaptic ID.

Parameters

[in]	id	the (core-local) ID of the neuron to search for in the synaptic row
[in]	row	the core-local address of the synaptic row
[out]	weight	address to contain the weight of the connection
[out]	delay	address to contain the delay of the connection
[out]	offset	address to contain the offset of the connection
[out]	synapse_type	the synapse type of the connection

Returns: was the search successful?

Definition at line 66 of file synapse_dynamics_static_impl.c.

◆ synapse_dynamics_remove_neuron()

bool synapse_dynamics_remove_neuron	(	uint32_t	offset,
		synaptic_row_t	row
	)

Remove the entry at the specified offset in the synaptic row.

Parameters

[in]	offset	the offset in the row at which to remove the entry
[in]	row	the core-local address of the synaptic row

Returns: was the removal successful?

Definition at line 94 of file synapse_dynamics_static_impl.c.

◆ synapse_dynamics_add_neuron()

bool synapse_dynamics_add_neuron	(	uint32_t	id,
		synaptic_row_t	row,
		weight_t	weight,
		uint32_t	delay,
		uint32_t	type
	)

Add an entry in the synaptic row.

Parameters

[in]	id	the (core-local) ID of the post-synaptic neuron to be added
[in]	row	the core-local address of the synaptic row
[in]	weight	the initial weight associated with the connection
[in]	delay	the delay associated with the connection
[in]	type	the type of the connection (e.g. inhibitory)

Returns: was the addition successful?

Definition at line 119 of file synapse_dynamics_static_impl.c.

◆ synapse_dynamics_n_connections_in_row()

uint32_t synapse_dynamics_n_connections_in_row ( synapse_row_fixed_part_t * fixed )

Get the number of connections in the given row.

Parameters

[in] fixed the fixed region of the synaptic row

Returns: The number of connections in the row

Definition at line 135 of file synapse_dynamics_static_impl.c.

Functions

Detailed Description

Function Documentation

◆ synapse_dynamics_initialise()

◆ synapse_dynamics_process_post_synaptic_event()

◆ synapse_dynamics_process_plastic_synapses()

◆ synapse_dynamics_print_plastic_synapses()

◆ synapse_dynamics_get_plastic_pre_synaptic_events()

◆ synapse_dynamics_get_plastic_saturation_count()

◆ synapse_dynamics_find_neuron()

◆ synapse_dynamics_remove_neuron()

◆ synapse_dynamics_add_neuron()

◆ synapse_dynamics_n_connections_in_row()