The System Analysis Module (SAM) code is a modern system analysis tool being developed for advanced non-LWR safety analysis. It aims at providing fast-running, whole-plant transient analyses capability with improved-fidelity for SFR, LFR, and MSR/FHR. SAM takes advantage of advances in physical modeling, numerical methods, and software engineering, to enhance its user experience and usability. It utilizes an object-oriented application framework (MOOSE), and its underlying meshing and finite-element library (libMesh) and linear and non-linear solvers (PETSc), to leverage the modern advanced software environments and numerical methods.
More information can be found at https://www.ne.anl.gov/codes/sam