William,

Take a look at the Majordomo pattern in the Guide, and the same project on
GitHub: https://github.com/zeromq/majordomo

It does what you need, I think.

-Pieter


On Wed, Apr 3, 2013 at 4:38 PM, William Martin <[email protected]
> wrote:

> Hi,
>
> I am working on a application using massive parallel workers. The
> application use the Parallel Pipeline pattern to dispatch work on multiple
> computer. It's work fine and i am happy to use ZMQ.
> http://zguide.zeromq.org/page:all#Divide-and-Conquer
>
> The next generation of this application must run multiple version the
> worker. Each version of worker can't process work of other version, due
> incompatible version of library. So i read documentation about the PUB/SUB
> socket, the ventilator publish work, and worker subscribe only the work
> their can do. But, how to process job only once with this new solution ?
>
> I am dreaming about subscription on PUSH/PULL socket, is it possible ?
> Somebody has already work on similar issue ?
>
> Best regards,
> William MARTIN
> <http://www.power-lan.com/>
> 15 rue de la Noé des Yonnières
> 44850 Saint-Mars-du-Désert
>
> Email : [email protected]
> Tel : 02 85 52 12 74 - 06 49 23 59 68
> Fax : 02 85 52 13 72
>
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