SpiNNakerManchester/PyNNExamples

Live interactive spike io

tmarinakis opened this issue · 2 comments

tmarinakis commented

When the simulation finishes, I can still inject

andrewgait commented

It's been a while since this issue was posted; I'm not sure why it's a problem that you can still click the button to "inject" after the simulation has finished, as it doesn't make any difference to the results and doesn't cause anything to crash.

alan-stokes commented

this would likely cause a issue with multi run. think of this:

  1. run
  2. complete first run
  3. inject....oh lets say 17 packets to a core on 0,0.
    so now the buffer (i think is 16 in size) on the core is full, and 1 is bouncing back and forth from the router and the core. might get dropped, but might not
  4. send new runtime, crashes due to that core being full of buffered injected packets that haven't been processed due to the core not receiving packets

or even worse, it doesnt fail, and now youve got a massive burst from that core when it starts up again in the second run.

either case is not ideal. I guess we just put the injector onto a safety check and blow up if you ask to inject when its in pause state