Algebraic Multigrid

See seminal textbook [Briggs2000] for details.

It seems that V-cycle outperforms Full Multigrid V-cycle on convergency.

Name		Name	Last commit message	Last commit date
Latest commit History 34 Commits
cmake		cmake
.gitignore		.gitignore
CMakeLists.txt		CMakeLists.txt
README.md		README.md
amg_solver.cc		amg_solver.cc
amg_solver.h		amg_solver.h
coarsener.cc		coarsener.cc
coarsener.h		coarsener.h
config.json		config.json
harmonic.cc		harmonic.cc
linear_solver.cc		linear_solver.cc
linear_solver.h		linear_solver.h
main.cc		main.cc
monkey.obj		monkey.obj
smoother.cc		smoother.cc
smoother.h		smoother.h
spmat.txt		spmat.txt
types.h		types.h

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