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LAMG (Los Alamos Algebraic Multigrid Code) was developed by the Parallel Architectures and Algorithms Team in the Scientific Computing Group (CIC-19) at LANL. It provides algebraic multigrid and Krylov solvers to the CÆSAR Project.
CÆSAR can not currently be compiled without LAMG because LAMG provides the only solvers in CÆSAR. Eventually, as other solver packages are added and developed within CÆSAR, this dependency will be removed.