[nengo-user] probe spike times instead of raster 0/1 per time point

[Trevor Bekolay]

Hi Aditya,

Apologies for the slow response! Unfortunately we haven't yet added a way
to get a list of spiketimes instead of the raster style representation we
have right now.

You can manually save your probes to disk (using, for example, numpy.savez;
see
http://docs.scipy.org/doc/numpy-1.10.0/reference/generated/numpy.savez.html
) and then flush the probes as I've described in this issue:
https://github.com/nengo/nengo/issues/963

But yes, we will (hopefully soon!) be implementing some additional tools to
automatically save simulations to disk, and to use lists of spiketimes
instead of rasters. A few issues tracking these things, if you're
interested, are:
- https://github.com/nengo/nengo/issues/447
- https://github.com/nengo/nengo/issues/613

Hope that helps!
Trevor

On Wed, Jan 27, 2016 at 9:34 AM, Aditya Gilra <aditya_gilra at yahoo.com>
wrote:

> Hi,
>
> Is there a way to probe LIF neurons for only a list of spiketimes instead
> of 0 or 1 at each time point?
> The raster style 0/1 takes up a lot of RAM, if I run for 200s.
>
> If not, is there a way to flush probes to disk either via Nengo or
> manually:
> for smalltime in arange(0,runtime,smalltimerange):
>     simulator.run(smalltime)
>     readout probes and save to disk
>     clear probes
>
> Thanks a lot,
> Aditya.
>
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>
>
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