Hi Biswa,

> Yes, Trilinos 10.6.4 (mpi version) works fine, independent of deal
> II. I have solved a couple of KKT systems using the linear and
> non-linear solvers. 

Ok, that is good to know. Now, remembering I am not a Mac OS X user of
deal.II:

(i) Some users had problems linking Trilinos when some fortran
libraries (wityh MPI) were included (on Mac OS X anyways). Try removing
--with-lapack, --with-umfpack, --with-blas from your configure line:
start distclean, configure, make. 

Some users claim link problems go away after these libraries are
removed. In any case, for a simpler debug, try the simplest configure
line you can think of that uses Trilinos with MPI. 
 
Before that, you may want to try to:

(ii) Check the output of:
idd -d -r step-x
where step-x is whatever deal.II example gives you your link errors.
All of your libraries should be shown with link targets existing.

Does that make sense?

Best,
        Toby


-- 
Toby D. Young

Assistant Professor Philosophy & Physics
Polish Academy of Sciences
www:   http://www.ippt.gov.pl/~tyoung
skype: stenografia

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