Re: Onyx2 Single Pipe -> 3 Pipe

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From: Angus Dorbie (dorbie++at++sgi.com)
Date: 03/12/2000 23:45:38

Your safest option for a smooth transition is to force 3 pfPipes on a
single display (choose smaller window sizes in this mode). This will
allow you to test the various aspects of the multiprocessing multipipe
rendering and ensure that all goes smoothly.

There's not much can go wrong once you know multiprocessing works so
even without this step running forked MP will catch most of the
gremlins. The multipipe stuff is actually transparent provided you can
create the pipes & channels without screwing up. Any gotchas will tend
to be things draw callbacks being invoked twice.

Cheers,ANgus.

Devrim Erdem wrote:
>
> Hi,
>
> I need to develop a performer application on an Onyx2 single pipe machine and have this application work on a 3 pipe onyx2 rack system. As I don't
> have the 3 pipe machine at the development site, I am afraid of any problems related to the architectural changes between these two systems. Though
> Performer would save me from many changes, I would like to hear if there are any possible problem sources. Any ideas on the issue are very much
> appreciated.
>
> Software will be based on Vega+Performer, will have 3 channels on Single pipe machine and 3 windows on the 3 pipe machine when transition if complete.
>
> My app needs to run at 60 Hz at the 3 pipe machine and my understanding is that 3 pipe machine can do 11M polygons per pipe and 1 pipe desk side has
> the same capability. Would it be correct if I assume that each pipe can have up to 11 M polygons ( yes I know this number shall be divided by x ) on
> the 3 pipe machine.
>
> Thanks,
>
> --
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 --Albert Einstein

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