[yt-dev] Adding communications plumbing to yt - is zeromq already used by yt?
Nathan Goldbaum
nathan12343 at gmail.com
Mon Oct 13 10:00:21 PDT 2014
Hi Stuart,
On Mon, Oct 13, 2014 at 9:48 AM, Levy, Stuart A <salevy at illinois.edu> wrote:
> Hello yt developers!
>
> In thinking about adding communications plumbing to yt, so that it could
> listen & respond to requests made over the network somehow (e.g. "using
> currently loaded dataset, render an image from the following viewpoint").
>
>
This sounds really cool! I'm looking forward to hearing more about this.
> We could roll our own using low-level socket stuff, and a select() or
> something in the main loop - that wouldn't be too bad. But I see that the
> zeromq messaging library is already among the dependencies of yt. At
> least, ipython depends on zeromq.
>
>
> So the question(s) are,
> does yt itself already use zeromq? (if so, then it sounds as though
> new communications stuff should use it too)
>
yt does use zeromq in a few places, but only to talk to IPython. We only
list zeromq as an indirect dependency to support the IPython notebook.
> If yt doesn't, then any advice on choosing which path to take?
>
> If we roll our own with a poll-for-message in yt's main loop somewhere,
>
Right now yt doesn't have any sort of event loop. You would need to create
your own main loop, I think. You might be interested in looking at the
yt-enzo bridge, which embeds yt in the Enzo simulation code's event loop.
Others will likely have more detailed feedback here, but I thought I'd jump
in and answer what I know off-hand.
> then where in the yt source tree is that main loop's code?
>
>
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