Re: OpenGL app kills Performer app.

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Angus Dorbie (dorbie++at++sgi.com)
Thu, 11 Nov 1999 09:28:21 -0800


Sounds like the context switch doesn't like to play with cliptextures.

What's your texture memory usage on the other OpenGL application? If you
ease up on that such that the sum of the applications doesn't
oversubscribe texture you might be in better shape. I'll pass along this
information to the engineer currently responsible for texture memory
management. He's looking at CLIP texture paging anyway.

In general paging out a clip texture is going to be very painful and
undermine some of it's important objectives.

Cheers,Angus.

"Kenneth R. Sewell III" wrote:
>
> I have a Performer application and an OpenGL application
> that I run simultaneously on the same graphics pipe on our
> Onyx2. I have the Onyx2 (IR2 pipe) configured such that it
> manages an area 2560x1024 in size with channels 0 and 1 each
> displaying half of this area. Anyway, if I run the OpenGL
> app and Performer app(using a clipmap texture), the screen
> scrambles and the Xserver restarts and kicks back to the
> login screen. If I run both apps, but don't use the
> clipmap, everything runs fine. If I run the Performer
> app(w/clipmap) alone, it runs great, but the moment I start
> up the OpenGL app it screws up. Does anyone know why this
> happens? I'm running on a Origin 2000/Onyx2 Rack mount, IR2
> w/2RM boards and Irix 6.5.3. Thanks.
>
> Ken
> Sewell++at++dramail.com
> Defense Research Associates
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-- 
"Success is the ability to go from one failure to another with
 no loss of enthusiasm."    -    Winston Churchill.

Performer + OpenGL examples and tutors: http://www.dorbie.com/


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