Hi John,

On Thu, Jun 16, 2011 at 2:59 PM, John Vidar Larring
<[email protected]> wrote:
> Yepp, the system has 24GB main memory. With the current config the system is
> stable at about 6.8GB memory consumption, leaving swap untouched. Good
> question though. Just did a double check to be sure:-)
>
> Gfx RAM, on the other side, is almost constantly exhausted. According to
> "watch nvidia-smi -q" there is only a few MB of gfx mem available throughout
> execution (varies between 5-100MB free). However, this is also true for our
> own systems which are not able to reproduce the issue.

The OSG svn/trunk and recent 2.9.x dev series has support for setting
a texture pool size
that is able to limit the amount of texture memory used, you can set
this via the env var:

  set OSG_TEXTURE_POOL_SIZE=200000

When sets the size to 200 thousands bytes.  Set it to different values
and study the reported available memory on the GPU.

Whether reducing the amount of memory used on the GPU will have an
effect I can't say - it all depends upon what is actually the
bottleneck.

In terms of possible causes of a stall you could check to see if there
are any processes on the client machine that are running periodically
- virus checkers etc.

Also check with NVidia.  They might have an idea.

Robert.
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