Matlab Engine Array Transfer Size Limitation
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I am using engGetVariable() to transfer an mxArray from the Matlab Engine to my C++ program. The documentation says: "The limit for the size of data transferred is 2 GB."
Why is this limitation present? Is there a way to increase it without breaking up the array into separate arrays? I need to transfer large arrays, potentially up to 256GB.
I like the simplicity of the Matlab Engine, so I would rather avoid having to break up, transfer, and re-assemble large arrays.
3 Comments
Walter Roberson
on 11 Nov 2015
You can use MPI with MATLAB. One use of it is specifically documented; see http://www.mathworks.com/help/mdce/use-different-mpi-builds-on-unix-systems.html
For an example of someone using MPI see http://www.mathworks.com/matlabcentral/newsreader/view_thread/308346
Answers (1)
Walter Roberson
on 11 Nov 2015
The 2 Gb limit is for compatibility with 32 bit versions of MATLAB.
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