Thank you, Jean-Paul, it was very useful. It works well. Alberto
*Alberto Salvadori* Dipartimento di Ingegneria Civile, Architettura, Territorio, Ambiente e di Matematica (DICATAM) Universita` di Brescia, via Branze 43, 25123 Brescia Italy tel 030 3711239 fax 030 3711312 e-mail: alberto.salvad...@unibs.it web-pages: http://m4lab.unibs.it/faculty.html http://dicata.ing.unibs.it/salvadori On Mon, Mar 27, 2017 at 10:48 AM, Jean-Paul Pelteret <jppelte...@gmail.com> wrote: > Hi Alberto, > > So, if I understand correctly, you've made modifications to the > CMakeLists.txt that governs your modified example problem as opposed to > linking deal.II itself directly to Lapack. I would say that the most simple > (although time-consuming) way to get the correct linker line would be to > build deal.II with Lapack enabled. You can do this my adding the following > lines to the configuration line for deal.II: > cmake -DDEAL_II_WITH_LAPACK:BOOL=ON -DLAPACK_DIR=/path/to/lapack etc... > Then every time that you link against the deal.II library, it will > automatically link against LAPACK. > > Otherwise if you're really prefer to keep it local to your project then > you'd best do it by adding a cmake module such as this one > <https://github.com/Kitware/CMake/blob/master/Modules/FindLAPACK.cmake>. > These will help you include all of the header files into your project that > you need to, as well as correctly link the LAPACK library (and any of its > dependencies) itself. > > I hope that this helps you. > > Best regards, > Jean-Paul > > > On Monday, March 27, 2017 at 4:07:17 PM UTC+2, Alberto Salvadori wrote: >> >> Hi, >> >> >> I appreciate any help on the issue below. >> >> >> Moving from step-17 and step-18, I have been developing a non linear >> solver for mechanical problems. It is a way to learn about deal.II rather >> than else. Conceptually it is rather simple, I have implemented some >> material model drivers (as J2 plasticity, for instance ) and a >> Newton-Raphson scheme. >> >> >> In my material model however, I am using lapack (specifically lapacke or >> mkl). It turned out that I am not sufficiently skilled to modify the cmake >> file in order to link deal.II with those libraries. I wonder if anyone can >> provide some help. >> >> The error reads as follows: >> >> >> [ 22%] *Linking CXX executable step-18* >> >> Undefined symbols for architecture x86_64: >> >> "_LAPACKE_dgesv", referenced from: >> >> ttl::lib::solve_impl<ttl::expressions::Bind<ttl::Tensor<4, 2, >> double> const&, std::__1::tuple<ttl::Index<(char)4>, >> ttl::Index<(char)3>, ttl::Index<(char)2>, ttl::Index<(char)1> > >, >> ttl::expressions::Bind<ttl::Tensor<2, 2, double> const&, >> std::__1::tuple<ttl::Index<(char)2>, ttl::Index<(char)1> > >, >> 4>::op(ttl::expressions::Bind<ttl::Tensor<4, 2, double> const&, >> std::__1::tuple<ttl::Index<(char)4>, ttl::Index<(char)3>, >> ttl::Index<(char)2>, ttl::Index<(char)1> > >, >> ttl::expressions::Bind<ttl::Tensor<2, >> 2, double> const&, std::__1::tuple<ttl::Index<(char)2>, >> ttl::Index<(char)1> > >) in step-18.cc.o >> >> "_LAPACKE_dgetrf", referenced from: >> >> int ttl::lib::inverse_impl<ttl::expressions::Bind<ttl::Tensor<4, >> 2, double> const&, std::__1::tuple<ttl::Index<(char)4>, >> ttl::Index<(char)3>, ttl::Index<(char)2>, ttl::Index<(char)1> > >, >> 4>::op<ttl::Tensor<4, 2, double> >(ttl::expressions::Bind<ttl::Tensor<4, >> 2, double> const&, std::__1::tuple<ttl::Index<(char)4>, >> ttl::Index<(char)3>, ttl::Index<(char)2>, ttl::Index<(char)1> > >, >> ttl::Tensor<4, 2, double>&) in step-18.cc.o >> >> "_LAPACKE_dgetri", referenced from: >> >> int ttl::lib::inverse_impl<ttl::expressions::Bind<ttl::Tensor<4, >> 2, double> const&, std::__1::tuple<ttl::Index<(char)4>, >> ttl::Index<(char)3>, ttl::Index<(char)2>, ttl::Index<(char)1> > >, >> 4>::op<ttl::Tensor<4, 2, double> >(ttl::expressions::Bind<ttl::Tensor<4, >> 2, double> const&, std::__1::tuple<ttl::Index<(char)4>, >> ttl::Index<(char)3>, ttl::Index<(char)2>, ttl::Index<(char)1> > >, >> ttl::Tensor<4, 2, double>&) in step-18.cc.o >> >> ld: symbol(s) not found for architecture x86_64 >> >> clang: *error: *linker command failed with exit code 1 (use -v to see >> invocation) >> >> make[6]: *** [step-18] Error 1 >> >> make[5]: *** [CMakeFiles/step-18.dir/all] Error 2 >> >> make[4]: *** [all] Error 2 >> >> make[3]: *** [CMakeFiles/release] Error 2 >> >> make[2]: *** [CMakeFiles/release.dir/all] Error 2 >> >> make[1]: *** [CMakeFiles/release.dir/rule] Error 2 >> >> make: *** [release] Error 2 >> >> after slight modifications of the cmakelist.txt file (adding the new >> source files, basically). >> >> >> By the way, I was able to link libraries to deal.II within Xcode and it >> worked out well. >> >> >> Thanks >> >> Alberto >> > -- > 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. > For more options, visit https://groups.google.com/d/optout. > -- Informativa sulla Privacy: http://www.unibs.it/node/8155 -- 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. 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