[Paraview] RAM friendly file format?

[noelieboy at online.ie]

I appears to crash when it is trying to render the model. I select the 
file to open, its takes approx 6/7 minutes to read, and during the 
rendering process, when the progress bar at the bottom right corner of 
the paraview gui is approaching 100% is crashes. This is before 
anything is dispayed in the 3d view window. So I am not entirely sure 
if it is because RAM is exceeded or perhaps graphics card memory? I am 
trying to display a model with 15million unstructured grid polygons. 
Would binary legacy files allow larger models (models with more 
polygons) to be displayed, or would using binary files only help with 
the actual vtk file size and file reading time? the memory monitor at 
time of crash for the paraview application is:
CPU:92%
CPU time:0:07:03
Mem Usage:798,184 K
Mem Delta:118,360 K
VM size:1,027,240 K

When i look at the paraview trace file, there are loads of the 
following error, each with a different element number:

# Error or warning:
# There was a VTK Error in file: 
c:\dev\paraview24\vtk\common\vtkDataArrayTemplate.txx (241)
#  vtkIdTypeArray (0EE032F8): Unable to allocate 41943170 elements of 
size 4: bad allocation

Have i exceeded the number of elements that paraview can display, 
regardless of file type?


thanks for any help you can give!


Quoting mattijs <m.janssens at opencfd.co.uk>:

> binary legacy VTK files are probably as ram efficient as any.
>
> Does paraview crash when reading the file or when displaying it? If the first
> your files are probably excessively big, if second the file format does not
> matter. Did you monitor the ram usage?
>
> Can you split your problem into smaller files? Write different results to
> different files?
>
>
> On Friday 03 February 2006 09:30, noelieboy at online.ie wrote:
>> Hi there,
>> I am currently writing legacy VTK files of a surface made
>> unstructured_grid using fortran 90, and look at them  in Paraview that
>> is installed on my desktop PC (2GB RAM). I now want to start viewing
>> large models and using the current method the files are getting big and
>> also paraview crashes (i assume due to lack of RAM). Is there any
>> particular file format (xml/ensight etc) that is designed to use less
>> system ram when visualising the models, for the same model detail? And
>> as a second question, which one would be the recommended format for
>> generation using fortran90 ?
>>
>>
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