Hi,

For some time, I have been solving a nonlinear multi-physics problem using deal.ii linear solvers at each iteration. But, due to the inherent nonlinearity, the number of iterations required is significantly high. So, I am planning to use Trilinos NOX (for its line search and trust region methods) and Trilinos TEKO (for the multi-physics preconditioners).

I believe deal.ii doesn't have wrappers for these two specific packages. Is their any alternative?.

If their is no alternative, I am considering writing my own wrapper to these packages (on the lines of deal.ii supplied Trilinos wrappers), and link the additional Trilinos libraries by modifying the default deal.ii makefile linking options. Are their any deal.ii specific potential compilation/linking issues I should be aware of?.

Thanks,
Shiva Rudraraju
Post-Doc, Computational Physics Group,
University of Michigan Ann Arbor.





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