Here is a list of all files with brief descriptions:

[detail level 1234]

src
applications
benchmark
convergence_study.cpp	Drivers for calculating convergence rates of Matrix-Based and Matrix-Free solvers
main_2d.cpp	2D benchmark driver for comparing hybrid vs fully distributed solvers
scaling_study.cpp	Comprehensive strong and weak scaling benchmark for the Hybrid ADR Solver
utils.h	Utilities for benchmarking hybrid vs fully distributed solvers
main
main_matrix_based.cpp	Main driver for the matrix-based ADR solver with hybrid parallelization
main_matrix_free.cpp	Main driver for the matrix-free ADR solver with hybrid parallelization
include
core
problem_definition.h	Defines the problem interface and a concrete Advection-Diffusion-Reaction (ADR) problem
solver.h	Abstract base class for all solvers
types.h	Common type definitions for the hybrid solver framework
matrix_based
matrix_based_solver.cpp	Implementation of the Matrix-based Finite Element solver (Optimized)
matrix_based_solver.h	Matrix-based solver using WorkStream for hybrid parallelization
matrix_free
adr_operator.h
matrix_free_solver.cpp	Implementation of the Matrix-free solver with GMG preconditioning
matrix_free_solver.h	Matrix-free solver with hybrid MPI+threading parallelization and GMG