Accelerating MODFLOW with the enhanced SAMG linear solver software
SAMG is a software package for the highly efficient numerical solution of large sparse matrix problems. These problems occur in application areas such as fluid flow, structural mechanics, oil reservoir and ground water simulation, casting and molding, process and device simulation in solid state physics and circuit simulation. SAMG's solver modules incorporate modern hierarchical techniques (algebraic multigrid, AMG), making them especially suitable for solving large classes of discretised elliptic differential equations. Compared to classical solution methods, SAMG's solver modules have a major advantage in that they are numerically scalable. That is, the computational cost is only linearly proportional to the number of unknowns.
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