GNU Compilers

The official name of the GNU compilers is "GNU Compiler Collection" or "GCC". To discover which versions are available:

$ module avail gcc

Choose an appropriate GCC module and load it. For example:

$ module load gcc

An older version of the GNU compiler will be in your path by default. Do NOT use this version. Instead, load a newer version using the command module load gcc.

Here are some examples for the GNU compilers:
Language	Serial Program	OpenMP Program
Fortran77	`$ gfortran myprogram.f -o myprogram`	`$ gfortran -fopenmp myprogram.f -o myprogram`
Fortran90	`$ gfortran myprogram.f90 -o myprogram`	`$ gfortran -fopenmp myprogram.f90 -o myprogram`
Fortran95	`$ gfortran myprogram.f95 -o myprogram`	`$ gfortran -fopenmp myprogram.f95 -o myprogram`
C	`$ gcc myprogram.c -o myprogram`	`$ gcc -fopenmp myprogram.c -o myprogram`
C++	`$ g++ myprogram.cpp -o myprogram`	`$ g++ -fopenmp myprogram.cpp -o myprogram`

More information on compiler options appear in the official man pages, which are accessible with the man command after loading the appropriate compiler module.

For more documentation on the GCC compilers:

http://gcc.gnu.org/onlinedocs/