memory and program

How can I estimate how much memory my program needs depends on the input values and consequently the matrices sizes generated by the input values?

While my input values generate the big size of matrix I get the "out of memory message". What is the upper limit of matrix size in MATLAB? Does it depends on the MATLAB or ability of your PC to run the program?

Is it possible to make a matrix out source? I mean to save it somewhere other than Matlab and use it during the program running?

Answer 1

[Oleg Komarov]

1106 - Memory Management Guide

Answer 2

[Walter Roberson]

The upper limit of matrix sizes in MATLAB is believed to be 2 Exbibyte -- though the largest system that I have heard of that stock MATLAB would execute on unchanged is a 2048 core system with 160 terabytes of main memory.