| Spartan: | SPN , 2 T + Multi-Group, Even-Parity Photon Transport Package with v/c corrections |
| Augustus: | P1 (Diffusion) Package |
| JTpack: | Krylov Subspace Iterative Solver Package (by John Turner, ex-LANL) |
| UMFPACK: | Unstructured Multifrontal Solver Package (an Incomplete Direct Method by Tim Davis, U of FL) |
| LINPACK: | Direct Dense Linear Equation Solver Package |
| BLAS: | Basic Linear Algebra Subprograms |