sPyNNaker neural_modelling 7.2.2
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Operations on synapses. More...
Go to the source code of this file.
Functions | |
static void | synapses_print_weight (weight_t weight, uint32_t left_shift) |
Print the weight of a synapse. | |
bool | synapses_initialise (address_t synapse_params_address, uint32_t *n_neurons, uint32_t *n_synapse_types, weight_t **ring_buffers, uint32_t **ring_buffer_to_input_buffer_left_shifts, bool *clear_input_buffers_of_late_packets_init, uint32_t *incoming_spike_buffer_size) |
Initialise the synapse processing. | |
bool | synapses_process_synaptic_row (uint32_t time, uint32_t spike_colour, uint32_t colour_mask, synaptic_row_t row, bool *write_back) |
process a synaptic row | |
uint32_t | synapses_get_pre_synaptic_events (void) |
returns the counters for plastic and fixed pre synaptic events based on (if the model was compiled with SYNAPSE_BENCHMARK parameter) or returns 0 | |
void | synapses_resume (timer_t time) |
Resume processing of synapses after a pause. | |
void | synapses_flush_ring_buffers (timer_t time) |
Reset the ring buffers to 0 at the given time. | |
Variables | |
uint32_t | synapse_type_index_bits |
Number of bits needed for the synapse type and index. | |
uint32_t | synapse_type_index_mask |
Mask to pick out the synapse type and index. | |
uint32_t | synapse_index_bits |
Number of bits in the synapse index. | |
uint32_t | synapse_index_mask |
Mask to pick out the synapse index. | |
uint32_t | synapse_type_bits |
Number of bits in the synapse type. | |
uint32_t | synapse_type_mask |
Mask to pick out the synapse type. | |
uint32_t | synapse_delay_bits |
Number of bits in the delay. | |
uint32_t | synapse_delay_mask |
Mask to pick out the delay. | |
uint32_t | synapses_saturation_count |
Count of the number of times the synapses have saturated their weights. | |
uint32_t | skipped_synapses |
uint32_t | late_spikes |
Count of the spikes that are received late. | |
uint32_t | max_late_spike |
The maximum lateness of a spike. | |
Operations on synapses.
Definition in file synapses.h.
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inlinestatic |
Print the weight of a synapse.
[in] | weight | the weight to print in synapse-row form |
[in] | left_shift | the shift to use when decoding |
Definition at line 68 of file synapses.h.
bool synapses_initialise | ( | address_t | synapse_params_address, |
uint32_t * | n_neurons, | ||
uint32_t * | n_synapse_types, | ||
weight_t ** | ring_buffers, | ||
uint32_t ** | ring_buffer_to_input_buffer_left_shifts, | ||
bool * | clear_input_buffers_of_late_packets_init, | ||
uint32_t * | incoming_spike_buffer_size | ||
) |
Initialise the synapse processing.
[in] | synapse_params_address | Synapse configuration in SDRAM |
[out] | n_neurons | Number of neurons that will be simulated |
[out] | n_synapse_types | Number of synapse types that will be simulated |
[out] | ring_buffers | The ring buffers that will be used |
[out] | ring_buffer_to_input_buffer_left_shifts | Array of shifts to use when converting from ring buffer values to input buffer values |
[out] | clear_input_buffers_of_late_packets_init | Inicates whether to clear the input buffers each time step |
[out] | incoming_spike_buffer_size | The number of spikes to support in the incoming spike circular buffer |
Definition at line 268 of file synapses.c.
bool synapses_process_synaptic_row | ( | uint32_t | time, |
uint32_t | spike_colour, | ||
uint32_t | colour_mask, | ||
synaptic_row_t | row, | ||
bool * | write_back | ||
) |
process a synaptic row
[in] | time | the simulated time |
[in] | spike_colour | the colour extracted from the spike key |
[in] | colour_mask | the colour mask extracted from the pop table |
[in] | row | the synaptic row in question |
[out] | write_back | whether to write back to SDRAM |
Definition at line 351 of file synapses.c.
uint32_t synapses_get_pre_synaptic_events | ( | void | ) |
returns the counters for plastic and fixed pre synaptic events based on (if the model was compiled with SYNAPSE_BENCHMARK parameter) or returns 0
Definition at line 405 of file synapses.c.
void synapses_resume | ( | timer_t | time | ) |
Resume processing of synapses after a pause.
[in] | time | The time at which the simulation is to start |
Definition at line 410 of file synapses.c.
void synapses_flush_ring_buffers | ( | timer_t | time | ) |
Reset the ring buffers to 0 at the given time.
[in] | time | the simulated time to reset the buffers at |
Definition at line 336 of file synapses.c.
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Number of bits needed for the synapse type and index.
Number of bits needed for the synapse type and index.
The number of bits used by the synapse type and post-neuron index.
Definition at line 74 of file local_only.c.
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Mask to pick out the synapse type and index.
Definition at line 65 of file synapses.c.
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Number of bits in the synapse index.
Number of bits in the synapse index.
The number of bits used by just the post-neuron index.
Definition at line 77 of file local_only.c.
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Mask to pick out the synapse index.
Definition at line 69 of file synapses.c.
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Number of bits in the synapse type.
Definition at line 71 of file synapses.c.
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Mask to pick out the synapse type.
Definition at line 73 of file synapses.c.
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Number of bits in the delay.
Definition at line 75 of file synapses.c.
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Mask to pick out the delay.
Mask to pick out the delay.
The mask to get the synaptic delay from a "synapse".
Definition at line 71 of file local_only.c.
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Count of the number of times the synapses have saturated their weights.
Count of the number of times the synapses have saturated their weights.
Definition at line 80 of file synapses.c.
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Count of the synapses that have been skipped because the delay wasn't big enough given how long the spike took to arrive
Definition at line 84 of file synapses.c.
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Count of the spikes that are received late.
Definition at line 87 of file synapses.c.
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The maximum lateness of a spike.
Definition at line 90 of file synapses.c.