How do I compile a Fortran code?

Answer 1

Assuming you are in a linux environment and are using the gnu fortran compiler, open a terminal to the directory of your fortran file, then type and execute:

gfortran ./file.f90 -o output

This should compile the source file "file.f90" to the executable "output" which can then be executed by

./output

If you want more information, a good place to start is by reading the documentation on the compiler for information on compiler flags that can optimize performance among other things.