int HYPRE_StructPCGSetAbsoluteTol (HYPRE_StructSolver solver, double tol) (Optional) Set the absolute convergence tolerance (default is 0)
(Optional) Set the absolute convergence tolerance (default is 0). If one desires the convergence test to check the absolute convergence toleranceonly , then set the relative convergence tolerance to 0.0. (The default convergence test ismax(relative
tolerance
, absolute
tolerance
).)
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