Here is a list of all modules with brief descriptions:

Mm_boundary_conditions	The purpose of the module is to apply noncharacteristic and processor boundary condiitons
Mm_compile_specific	This module contains subroutines that are compiler specific
Mm_compute_cbc
Mm_constants
Mm_delay_file_access
Mm_derived_variables	This module features subroutines that allow for the derivation of numerous flow variables from the conservative and primitive ones. Currently, the available derived variables include the unadvected volume fraction, specific heat ratio, liquid stiffness, speed of sound, vorticity and the numerical Schlieren function
Mm_eigen_solver	The purpose of the module is to solve an eigenvalue problem for a complex general matrix. Subroutines are imported from EISPACK (https://netlib.org/eispack/) with minor modifications for compatibility
Mm_finite_differences
Mm_helper_basic
Mm_nvtx
Mm_precision_select	This file contains the definition of floating point used in MFC
Mm_sim_helpers
Mm_start_up	The purpose of the module is primarily to read in the files that contain the inputs, the initial condition data and the grid data that are provided by the user. The module is additionally tasked with verifying the consistency of the user inputs and completing the grid variablesThe purpose of the module is primarily to read in the files that contain the inputs, the initial condition data and the grid data that are provided by the user. The module is additionally tasked with verifying the consistency of the user inputs and completing the grid variables. This module also also allocating, initializing I/O, and deallocating the relevant variables on both cpus and gpus as well as setting up the time stepping, domain decomposition and I/O procedures