Re: not for the faint of heart

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Angus Dorbie (dorbie++at++sgi.com)
Fri, 23 Apr 1999 15:31:17 -0700


Do the graphics pipes crash?

What's on the core file stack?

george williams wrote:
>
> Not Performer-related, but multipipe OpenGL.
>
> I recently had to write an OpenGL application across three pipes;
> On one pipe, it works fine. On three pipes, it *crashes* the machine
> after about a minute running. This happened repeatedly. No
> degradation in performance occurs up to the point of *crash*.
>
> I know that *crashing* can be a sympton of many things gone wrong,
> not necessarily having anything to do with graphics or using multipipe
> pipes.
>
> Before I really start to debug this thing,

At least tell us what's in the core.
Sounds like it's probably your code.

> ... I am just wondering if anyone
> has had similar experience with a multi-pipe, Ogl app.

This shouldn't be a problem. The difficult stuff with multipipe is high
performance and that requires multiple processes IPC, multibuffering
etc.

Maybe you should use Performer ;-)

Cheers,Angus.

-- 
"Microsoft's system was like a forest that hadn't had a controlled
 burn in decades, just waiting for one person with a match to turn
 it into a disaster. Melissa was Microsoft's fault. They left their
 system wide open to this sort of abuse, they knew it could happen
 and did nothing." -- Bruce Perens

For advanced 3D graphics Performer + OpenGL based examples and tutors: http://www.dorbie.com/


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