I am building mex functions from .m files and am having issues with MATLAB crashing when my input matrix is too large. I am defining the input variable types using the MATLAB Coder project view.
I have created a very basic example which should show that the issue is isolated to the input matrix size. The .m code is the following:
function [return1 return2] = mexTest( input1, input2 )
return1 = input1(100,100);
return2 = input2 + input1(1,1);
end
It builds fine with Coder. input1 is defined as a double(2560x1920) and input2 is a double(1x1)...both sizes are defined in the MATLAB Coder project UI.
The code builds fine, but when I run it, MATLAB crashes with no warning messages, just a Windows message indicating that MATLAB has stopped working. I am on a Windows 7 64bit machine running MATLAB R2012a 32bit (7.14.0.739).
Furthermore, when I decrease the size of input1 to say, 100x100, the function runs just fine with no issues. I have tried increasing the maximum stack usage (up to 500,000,000 bytes) in the project settings as well as trying different options for variable sizing support.
When I run the memory command I get the following output, which seems do indicate that I have sufficient room to do what I am attempting.
Maximum possible array: 2046 MB (2.145e+09 bytes) *
Memory available for all arrays: 3355 MB (3.518e+09 bytes) **
Memory used by MATLAB: 469 MB (4.921e+08 bytes)
Physical Memory (RAM): 8182 MB (8.580e+09 bytes)
Any help or tips that can be provided would be very much appreciated.
