Reducing Synchronization Delay

• In network models, axonal delays L are large compared to the simulation time step.
• A spike generated at simulation time T on one node need not be physically delivered to the destination synapse on another node until simulation time T+L.
• PGENESIS can use this to reduce unnecessary waiting. Node B can get ahead of node A by the minimum of all the axonal delays on the connections from cells on A to synapses on B. This is called the lookahead of B with respect to A.
• You must set /post/sync_before_step to 0 for this to allow this looser synchronization.

Previous slide

Next slide

Back to the index

View Graphic Version

No notes for slide 99