[Insight-users] Memory concern

[itk@stmoser.ch]

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Hi

I'm working within the same project as Michael.  I have an application
which does some evaluation of 3D registration runs that implements a
function to calculate a metric value. If I work on my target data which
is of type short and roughly 60M each image, my application allocates
more than 800M of memory. I have set up a demo code that generates two
200*200*200 images of type short and calculates a
MeanSquaresImageToImageMetric with linear interpolation. Watching the
application with 'top' I realize that it is 42M in size after creation
of the images and rises up to 317M during the metric calculation.
All the memory seems to be freed afterwards. Is there a way to cut peak
memory usage?
The actual problem is that depending on the hardware, the OS gets into
swapping and makes calculations almost impossible.

Thanks, Stephan
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