Gfortran installation guidance

[aafshani]

Hello everybody
Currently I'm using Fortran, but it seems that have to use GFortran as well, becasue I have heard it works well with large size array. Despite the fortran that gives error, it doesn't. I tried to download GFotran and install it, but it was too messy with alot of file and folders. And after downloading, no duidance for installation process.
I'm not professinnal at computer, my filed is not comuter science.
So, I wanted to know do I need install something else before installation of Gfortran?
Can anybody help me to find a direct link to Gfortran installation forlder, as well as to its installation guidance in simple explnation?
Thank you guys!!

[TimP]

As a matter of fact, with gfortran on Windows it's more difficult to adjust for large data than with ifort. The last resort solution is basically the same: allocatable arrays with compile options to use heap, and going to X64 even if you're a diehard 32-bit fan.
There's plenty of documentation on installation of gfortran on windows, e.g. on gfortran wiki. This is not the place to quote or misquote. One of the selling points of commercial compilers such as ifort is the reduction in amount of study required to get started.
The easy way for gfortran is with one of the 3 versions on the cygwin setup menu. The mingw 64-bit would be the choice for large problems.