[daniel_d]

I have written some lenthy c++ which should perform quite a number of calculations. Inputs are a matrix of dimension n*m and a few numbers. The programm works for small values of n and m (e.g. n=m=100), but if I try to raise the dimension-restriction, it won't work.Error-Message:"An unhandled exception of type 'system.StackOverflowException" occurred". I need the programm for large matrices (n=m=1200) and i do not comprehend, why this programm is unable to hande big matrices. What did I mess up? Could anyone maybe find the time to actually take a close look at my admittedly lengthy programm and tell me which parts I have to change?

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Hi Daniel,

It sounds like your program uses recursion to do the matrix calculations. You won't be able to use it for matrices greater than a certain size without modifying the code to iterate through a loop instead repeatedly calling the same function.

-Ricci

[ricci]

Hi Daniel,

It sounds like your program uses recursion to do the matrix calculations. You won't be able to use it for matrices greater than a certain size without modifying the code to iterate through a loop instead repeatedly calling the same function.

-Ricci

[Swandog46]

Probably exactly right. If you're calculating determinants, for example, recursively, then you'll blow the stack out VERY quickly a recursive routine 1200 times..... Rewrite it iteratively so that you can allocate your own memory.

[daniel_d]

Thank you very much!! I will try it out.