Dear DEAL.II developers and users, We are using DEAL.II to address a goal-oriented PDE problem, using SolverCG<> to solve a linear system.
Since we are interested in the accuracy of the quantity of interest, we want the iterative solver to stop when the inner product between a dual solution vector and the residual vector is less than a threshold, rather than controlling the residual vector l_2 norm. We have two concerns: 1. Is it possible to extract the residual vector from the SolverCG (or other possible solvers) class? 2. Is it possible to use the inner product as mentioned above rather than the l_2 norm as the check_value in the SolverControl class? Best Regards, Yang -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/b44e8507-4fd0-4de4-9803-ee52971b079en%40googlegroups.com.
