[vtk-developers] Is there a memory limit for vtkImageData and orvtkUnsignedshortArray

[David Gobbi]

Hi Oliver,

There are no hidden memory limits in VTK, but the vtkImageData object
will always allocate the whole image as one contiguous block of
memory.  On Win32 systems this is a problem, because Win32 suffers
from memory fragmentation, i.e. if it has been a long time since your
last reboot then even if there is a lot of memory available, it is
only available in relatively small chunks.

Sometimes just rebooting will solve the problem.  Or you can move to a
system that doesn't suffer so badly from memory fragmentation, like
64-bit WinXP.  I also seem to remember reading somewhere that Windows
7 has reduced memory fragmentation.

   David


On Wed, Dec 16, 2009 at 9:45 AM, Olivier Robin
<Olivier.Robin at bioclinica.com> wrote:
> Hello,
>
> I am working under project using vtk (the Activiz version), under window
> XP SP1, visual studio. my project is in c#.
>
> when I use object like vtkImageData, or vtkUnsignedShortArray, and try
> to allocate memory, I have a low memory limit, around 90 Mbyte, may be a
> little bit more.
>
> is there an officially limit in using memory with theses object (My
> vtkImageData would like to use more than 110 Mbyte, because I have a
> Dicoml SErie with more than 1600 slices) ?
> is there a way to modify trhis limit ?
>
> thank you for any feedback
> Olivier
>
> --
> Confidentiality Notice: This e-mail transmission may contain confidential or legally privileged information that is intended only for the individual or entity named in the e-mail address. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or reliance upon the contents of this e-mail is strictly prohibited. If you have received this e-mail transmission in error, please reply to the sender and then delete the message from your computer. Thank you.
> --
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtk-developers
>
>