Provide ostream output operator for relaxation::as_preconditioner
Provide ostream output operator for relaxation::as_preconditioner

dondieselkopf/amgcl,dondieselkopf/amgcl,ddemidov/amgcl,ddemidov/amgcl,dondieselkopf/amgcl,ddemidov/amgcl,ddemidov/amgcl