How to Use FORTRAN on Athena
To use FORTRAN on Athena, you should do the following:
- Create a file containing your FORTRAN source code using a
text editor such as Emacs. The file should have a name that
ends with a .f suffix. The compiler assumes that
files ending in .f are FORTRAN source files.
- Compile the source code using the Fortran-77 compiler,
f77. For example, if you want to compile a source
file named program.f, type this:
f77 program.f
If your file compiles successfully, the executable file will be named
a.out.
NOTE: On the RS/6000 workstations the name of the
FORTRAN compiler is xlf, not
f77.
- To run the executable file, just type its name:
a.out
- If you need to debug run-time errors, you may want to use the
dbx source-level debugger. If you want to learn
about dbx, you can read the manual page by using the
man command:
man dbx
For more detailed explanations and examples, you may want to look at
Essential Fortran, available in Graphic Arts.