The synapse expander for neuron cores. More...

#include "matrix_generator.h"
#include "connection_generator.h"
#include "param_generator.h"
#include "rng.h"
#include <spin1_api.h>
#include <data_specification.h>
#include <debug.h>
#include <key_atom_map.h>
#include "common_mem.h"
#include "bit_field_expander.h"

Data Structures
struct	connection_builder_config_t
	The configuration of the connection builder. More...

Macros
#define	INVALID_REGION_ID 0xFFFFFFFF

Functions
static bool	read_connection_builder_region (void *region, void synaptic_matrix, uint32_t post_slice_start, uint32_t post_slice_count, uint32_t post_index, unsigned long accum *weight_scales, accum timestep_per_delay)
	Generate the synapses for a single connector. More...

static bool	run_synapse_expander (data_specification_metadata_t ds_regions, void params_address)
	Read the data for the expander. More...

void	c_main (void)
	Entry point.

Variables
	expander_config_t

rng_t *	population_rng
	An RNG that starts in the same place on every core of the Population.

rng_t *	core_rng
	An RNG that is local to the current core.

Detailed Description

The synapse expander for neuron cores.

Definition in file synapse_expander.c.

Data Structure Documentation

◆ connection_builder_config_t

struct connection_builder_config_t

The configuration of the connection builder.

Definition at line 38 of file synapse_expander.c.

Data Fields
uint32_t	pre_lo
uint32_t	pre_hi
uint32_t	post_lo
uint32_t	post_hi
uint32_t	synapse_type
uint32_t	matrix_type
uint32_t	connector_type
uint32_t	weight_type
uint32_t	delay_type

Function Documentation

◆ read_connection_builder_region()

static bool read_connection_builder_region	(	void **	region,
		void *	synaptic_matrix,
		uint32_t	post_slice_start,
		uint32_t	post_slice_count,
		uint32_t	post_index,
		unsigned long accum *	weight_scales,
		accum	timestep_per_delay
	)

static

Generate the synapses for a single connector.

Parameters

[in,out]	in_region	The address to read the parameters from. Should be updated to the position just after the parameters after calling.
[in]	synaptic_matrix_region	The address of the synaptic matrices
[in]	post_slice_start	The start of the slice of the post-population to generate for
[in]	post_slice_count	The number of neurons to generate for
[in]	n_synapse_type_bits	The number of bits in the synapse type
[in]	n_synapse_index_bits	The number of bits for the neuron index id
[in]	weight_scales	An array of weight scales, one for each synapse type

Returns: true on success, false on failure

Definition at line 88 of file synapse_expander.c.

◆ run_synapse_expander()

static bool run_synapse_expander	(	data_specification_metadata_t *	ds_regions,
		void *	params_address
	)

static

Read the data for the expander.

Parameters

[in]	ds_regions	The data specification regions
[in]	params_address	The address of the expander parameters

Returns: True if the expander finished correctly, False if there was an error

Definition at line 137 of file synapse_expander.c.

Data Structures

Macros