[Paraview] Memory use with Xdmf files

[Michael Jackson]

I have written an Xdmf file that uses the 3D CoRectMesh to display a
montage of 54 gray scale images. They are laid out in a 9x6 fashion. Each
Image is about 1292x968 pixels. We have run stitching algorithms on the
images to find their correct coordinates in XYZ space so that they will
form the montage correctly.

The raw amount of memory is 67,535,424 bytes. If that has to be as RGBA for
rendering then it is 270,141,696 bytes.

Then ParaView has to create a "cell" for each pixel and then some other
stuff. At one point ParaView spiked to 120GB of RAM and then fell back to
about 36GB of RAM. This seems a bit excessive to me. This is with ParaView
4.3.1 on a Windows 8.1 workstation. Am I doing something wrong? Just seems
like a lot of memory.

Are their alternate ways of writing the Xdmf file so that each image is a
single cell perhaps?

Thanks for any insights.

I can make the data set available to anyone who needs it.
_________________________________________________________
Mike Jackson                  mike.jackson at bluequartz.net
BlueQuartz Software                    www.bluequartz.net
Principal Software Engineer                  Dayton, Ohio
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