Use of Coder.typeof results in crash of system

Hi,

I am working for Integration of GPU coder into simulink. I am taking Discrete Time State space equation as Entry pont function. In the next step, I am generating a dll for variable size matrix. In the next step I am defining coder.externalAPI to integrate dll with simulink. In the last step, I am creating a simulink model which has matlab function block which runs the code. This works perfectly fine for fixed size matrices. But when I am using variable size matrices in generating dll and running the simulation, the system stops working or gets crashed.

In generating dll, I am using coder.typeof method as follows:

A = coder.typeof(double(10),[100,100]);

Like this I am defining al the matrices.

But each time I run system, it gets crashed.

Also I tried using coder.varsize as follows:

A = rand(10);

coder.varsize('A',[100 100],[1 1]);

But it always create matrix of 10*10 only.If I give A = rand(15) after generating dll, still it shows answer for 10*10 matrix on simulink.

Can someone please help me with this issue?