[Beowulf] transcode Similar Video Processing on Beowulf?

Gavin W. Burris bug at wharton.upenn.edu
Wed Apr 16 11:44:08 PDT 2014

Think of RPC as a POST and a simple queue as a GET.

On Wed 04/16/14 01:41PM -0400, Mark Hahn wrote:
> >I think this an interesting distinction, between RPC and simple queues.
> >RPC relies on a client calling on a known remote server, where simple
> >queues allow a horde of workers to pull messages off as they are
> >available.  I can see a use case for either depending on scale.
> I'm unforgivably implementation-oriented, but: whaa?
> a queue requires an RPC to enqueue and an RPC to dequeue, so it's
> not as if there is any difference in scalability, security or
> local/remote-ness. ie enqueing is a sort of fire-and-forget RPC that
> doesn't do any work.
> I guess the main difference is really architectural: with queues as
> the building block, you need an out-of-band, "meta" coordinator to
> track success/completion, whereas the RPC approach can handle status
> in-band.
> -mark

Gavin W. Burris
Senior Project Leader for Research Computing
The Wharton School
University of Pennsylvania

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