Compilers – GNU
Overview
The GNU Compiler Collection supports a number of programming languages.
Several versions are available on the iCSF – please see the table below.
Advice on programming in Fortran or C is currently beyond the scope of this webpage.
Restrictions on use
None, the compilers are open source.
Set up procedure
This depends on which version you require.
| Version | Commands/compilers available | Module required | Additional Notes |
| 14.2.0 | gcc, gfortran | module load compilers/gcc/14.2.0 | |
| 11.5.0 | gcc, gfortran | None | This is now the system default in EL9 |
| 11.2.0 | gcc, gfortran | module load compilers/gcc/11.2.0 | |
| 8.3.0 | gcc, gfortran | module load compilers/gcc/8.3.0 | |
| 8.2.0 | gcc, gfortran | module load compilers/gcc/8.2.0 | |
| 6.4.0 | gcc, gfortran | module load compilers/gcc/6.4.0 | |
| 4.9.0 | gcc, gfortran | module load compilers/gcc/4.9.0 | |
| 4.7.0 | gcc, gfortran | module load compilers/gcc/4.7.0 | |
| 4.6.2 | gcc, gfortran | module load compilers/gcc/4.6.2 | |
| 4.4.6 | gcc, gfortran | None | This was the system default in EL7 |
By loading/swapping modules, the correct LD_LIBRARY_PATH will be set.
Running the application
Example Code Compilations
gcc hello_world.c -o hello
#
# ...produces executable binary called "hello"...
#
gfortran hello_fworld.f77 -o f77hello
gfortran hello_fworld.f95 -o f95hello
#
# ...produce executable binary called "f77hello" or "f95hello"...
#
To run your code:
./f95hello
Further info
- Online manuals available from the command line:
man gcc
# for the C/C++ compiler
man gfortran
# for the fortran compiler