Hi Utkarsh,
The issues may be due to my misuse of your design :). I have had
immediate mode disabled for quite some time as it had greatly improved
performance. however this seams to be a major factor in the huge memory
bloat when using LIC rep.
When I enabled immediate mode, memory usage peaks around 3GB, which
still seams a bit high, but much more reasonable than 18GB. And the
growth in memory usage is much smaller, if at all (it's been harder to
examine many steps because of the performance issue).
The performance is so reduced in immediate mode that it's nearly
impossible to use (5+ minute for each render).
I haven't had any success running the LIC parallel, artefacts appear at
process boundaries. I had tried running D3 on the reader which doesn't
generate ghost layer requests yet, but this was unsuccessful.
Can the LIC work in parallel?
On 06/07/2011 05:53 AM, Utkarsh Ayachit wrote:
I doubt it's part of the design so to speak :). My suspicion is some
OpenGL buffers are not being released or something of that nature.
I'll try to track it down.
Utkarsh
On Mon, Jun 6, 2011 at 9:28 PM, Burlen Loring<blor...@lbl.gov> wrote:
Hi,
I am seeing some pretty astounding memory usage when using the LIC. My
dataset is 100MB image 2D image data. When I load it and display using a
slice rep. I use about 800MB of RAM, but when I turn on LIC rep. memory
usage goes up to 18GB!! What's worse is that as I advance through the time
series with each new step the memory usage grows by 4GB or more, until I run
out of RAM. I put the output from one run below, memory usage is reported in
KB.
Does anyone know why LIC rep. requires such a massive amount of RAM? I
didn't see any outright large leaks, so it must be part of this rep. design?
And can anything be done to prevent the growth in its usage over time?
Listen on port: 11111
Waiting for client...
Waiting for server...
Client connected.
[0] vtkSQBOVReader::SetFileName 0.024441
[0] vtkSQBOVReader::RequestData 0.571345
1 775272<------------------ memory use w/ surface rep.
1 775272
0 missmarple 15193
1 776856
1 776856
1 779336
1 18480044<------------------ memory use w/ LIC rep.
[0] vtkSQBOVReader::RequestData 3.05736
1 18792084
[0] vtkSQBOVReader::RequestData 3.1486
1 19603868
[0] vtkSQBOVReader::SetFileName 2.09808e-05
Client connection closed.
Burlen
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