| foss | GNU Compiler Collection (GCC) based compiler toolchain, including OpenMPI for MPI support, OpenBLAS (BLAS and LAPACK support), FFTW and ScaLAPACK. |
| [GNU](http://www.gnu.org/software/) | Compiler-only toolchain with GCC and binutils. |
| gompi | GNU Compiler Collection (GCC) based compiler toolchain, including OpenMPI for MPI support. |
| [iccifort](http://software.intel.com/en-us/intel-cluster-toolkit-compiler/) | Intel C,C++ and Fortran compilers |
| [iccifort](http://software.intel.com/en-us/intel-cluster-toolkit-compiler/) | Intel Cluster Toolkit Compiler Edition provides Intel C,C++ and fortran compilers, Intel MPI and Intel MKL |