Re: [info-performer] node limitation?

New Message Reply Date view Thread view Subject view Author view

From: Allan Schaffer (allan++at++sgi.com)
Date: 05/31/2002 09:11:09


Christian Stock wrote:
> I'm trying to load about 80 obj files into perfly, that sit on a terrain
> which is loaded using an im and arcinfo file. It works fine on machine
> 1, but fails on machine 2 (see specs below). On machine 2 perfly starts
> and loads all objects, but hangs when trying to draw the welcome text,
> and the screen remains black (no error message). Is there a max number
> of nodes depending on system memory, or what else could be wrong? Both
> systems are using Performer 2.5.1
>
> machine 1: AMD 1.4GHz, 512 RAM, Geforce 3, 'home-brewed' linux, stitched
> together from RedHat 6.x and updated with recent tgz files, ie kernel
> 2.4.14, XFree84 4.1.2, etc.
>
> machine 2: P4 1.7GHz, 512 RAM, Geforce 3 Ti500, RedHat 7.2

There's no max number of nodes; and generally, if you were running out
of memory space the arena would print some complaints to the shell window.

You might try boosting your arena size anyways, since it's a very easy
sanity check. setenv PFSHAREDSIZE 256000000 or higher.

But what I wonder -- what precisely is the "final straw" before it
breaks on that second system? It breaks with ~80 models, but does it
work with 40, 20, 10, 1? My first suspicion would be that perfly on the
2nd system breaks with even 1 model. But if it breaks when you go from
loading 26 models to loading 27, can that 27th model be loaded alone?
And so on.

I've seen nvidia drivers be the cause of general perfly problems (but
not dependent upon the # of models), where perfly either dumps core or
hangs just as the welcome screen is put up. You didn't mention which
drivers you have, but check to make sure they are either the ones listed
on our website as "qualified"
(http://www.sgi.com/software/performer/platforms.html). Also the latest
one (2880) has been checked and will be added to the list.

Allan

-- 
Allan Schaffer                                            allan++at++sgi.com
Engr. Manager, Core Rendering                            1-650-933-2160
Silicon Graphics                                     http://www.sgi.com


New Message Reply Date view Thread view Subject view Author view

This archive was generated by hypermail 2b29 : Fri May 31 2002 - 09:16:12 PDT

This message has been cleansed for anti-spam protection. Replace '++at++' in any mail addresses with the '@' symbol.