Re: Model Size limitations
Michael Jackson
10mm with a 5micro spacing value is 10/.005 = 2000 voxels per side.
2000 ^3 = 8,000,000,000 (8 Billion Voxels).
Now, just to store the feature ids would require 8Billion * 4 bytes = 32GB of memory.
The phases is going to cost another 32GB of memory.
If you are also doing anything with Crystallography, the Eulers will cost you 96GB of memory.
That is 160GB of RAM just to do those parts.
We haven’t gotten into the grain data but is probably dwarfed by the voxel data. If you have billions of grains then maybe not.
The first question that I have is: Does your workstation machine have this amount of memory available?
I agree that we could probably do better at trying allocate the memory and if we fail, we should fail gracefully rather than crash.
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Mike Jackson
From:
dream3...@googlegroups.com <dream3...@googlegroups.com> on behalf of David Harra <davidha...@gmail.com>
Date: Monday, November 21, 2022 at 20:15
To: dream3d-users <dream3...@googlegroups.com>
Subject: Model Size limitations
I am wondering if there are model size limitations to Dream.3D.
I am generating a 3D synthetic microstructure with dimensions 10 mm x 10 mm x 10mm. with target grain sized going from 800 - 2600 microns i- distribution with elongated structure using a resolution of 5 microns.
The problem I keep getting is that Dream.3D crashes or just shuts down during the Pack Primary Phases filter using these dimensions. However, if I use a much smaller model and grain size my pipeline runs fine so not sure what the issue exactly could be but
my dimensions don't feel as if they are over ambitious for Dream3Ds capabilities.
Any help would be appreciated.
Thanks
Dave :)
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David Harra
I have altered the resolution and dimensions accordingly and works fine for what I need.
Thanks
Dave :)