void TripletConnection::propagate_forward()
{
// loop over all spikes
for (SpikeContainer::const_iterator spike = src->get_spikes()->begin() ; // spike = pre_spike
spike != src->get_spikes()->end() ; ++spike ) {
// loop over all postsynaptic partners
for (const NeuronID * c = w->get_row_begin(*spike) ;
c != w->get_row_end(*spike) ;
++c ) { // c = post index
// transmit signal to target at postsynaptic neuron
AurynWeight * weight = w->get_data_ptr(c);
transmit( *c , *weight );
// handle plasticity
if ( stdp_active ) {
// performs weight update
*weight += dw_pre(*c);
// clips too small weights
if ( *weight < get_min_weight() )
*weight = get_min_weight();
}
}
}
}
void TripletConnection::propagate_forward()
{
for (SpikeContainer::const_iterator spike = src->get_spikes()->begin() ; // spike = pre_spike
spike != src->get_spikes()->end() ; ++spike ) {
for (NeuronID * c = w->get_row_begin(*spike) ; c != w->get_row_end(*spike) ; ++c ) { // c = post index
AurynWeight value = fwd_data[c-fwd_ind];
transmit( *c , value );
if ( stdp_active ) {
fwd_data[c-fwd_ind] -= dw_pre(*c);
if ( fwd_data[c-fwd_ind] < get_min_weight() )
fwd_data[c-fwd_ind] = get_min_weight();
}
}
// update pre_trace
// tr_pre->inc(*spike);
}
}
inline void SymmetricSTDPConnection::propagate_forward()
{
NeuronID * ind = w->get_row_begin(0); // first element of index array
AurynWeight * data = w->get_data_begin();
AurynWeight value;
SpikeContainer::const_iterator spikes_end = src->get_spikes()->end();
// process spikes
for (SpikeContainer::const_iterator spike = src->get_spikes()->begin() ; // spike = pre_spike
spike != spikes_end ; ++spike ) {
for (NeuronID * c = w->get_row_begin(*spike) ; c != w->get_row_end(*spike) ; ++c ) {
value = data[c-ind];
// dst->tadd( *c , value , transmitter );
transmit( *c, value );
NeuronID translated_spike = dst->global2rank(*c);
data[c-ind] += dw_pre(translated_spike);
if (data[c-ind] < get_min_weight()) {
data[c-ind] = get_min_weight();
}
}
}
}