Hello, Yes professor. I thought this might be helpful to anyone who gets a similar error and is looking for a solution.
On Wednesday, July 6, 2016 at 3:58:05 AM UTC-4, Jean-Paul Pelteret wrote: > > Hi Rajat, > > Thanks for posting how you solved your problem! I'm glad to know that you > found the issue, and this will be helpful to know. Perhaps we can > mention/reinforce it in the documentation. > > Regards, > J-P > > On Sunday, July 3, 2016 at 9:22:06 PM UTC+2, RAJAT ARORA wrote: >> >> Hello, >> >> This is because of the vector locally_owned_x. >> As per the documentation, during the serialization, the vector should be >> ghosted. >> If I make the change, the code works fine. >> >> >> On Sunday, July 3, 2016 at 2:52:57 PM UTC-4, RAJAT ARORA wrote: >>> >>> Hello all, >>> >>> I am trying to use the checkpoint / restart code with the help of the >>> example given in the documentation here >>> <https://dealii.org/developer/doxygen/deal.II/classparallel_1_1distributed_1_1SolutionTransfer.html> >>> I am getting a long error while saving a parallel vector and parallel >>> distributed triangulation using the following code. >>> >>> Code Used: >>> >>> >>> string triangulation_name = "mesh_restart"; >>> >>> parallel::distributed::SolutionTransfer<dim, LA::MPI::Vector> >>> sol_trans_x(dof_handler); >>> sol_trans_x.prepare_serialization(locally_owned_x); >>> >>> triangulation.save(triangulation_name.c_str()); >>> >>> >>> //LA::MPI::Vector corresponds to PETSC MPI Vector >>> // locally_owned_x is solution vector reinitialized as >>> // locally_owned_x.reinit(locally_owned_dofs, MPI_COMM_WORLD); >>> >>> >>> >>> Error here: >>> >>> >>> An error occurred in line <1253> of file </home/rajat/Documents/Code- >>> Libraries/deal/dealii8.3/dealii-8.3.0/include/deal.II/lac/ >>> petsc_vector_base.h> in function >>> void dealii::PETScWrappers::VectorBase::extract_subvector_to( >>> ForwardIterator, ForwardIterator, OutputIterator) const [with >>> ForwardIterator = const unsigned int*; OutputIterator = double*] >>> The violated condition was: >>> index>=static_cast<unsigned int>(begin) && index<static_cast< >>> unsigned int>(end) >>> The name and call sequence of the exception was: >>> ExcInternalError() >>> Additional Information: >>> This exception -- which is used in many places in the library -- >>> usually indicates that some condition which the author of the code thought >>> must be satisfied at a certain point in an algorithm, is not fulfilled. >>> An example would be that the first part of an algorithm sorts elements >>> of an array in ascending order, and a second part of the algorithm >>> later encounters an an element that is not larger than the previous one. >>> >>> >>> There is usually not very much you can do if you encounter such an >>> exception since it indicates an error in deal.II, not in your own >>> program. Try to come up with the smallest possible program that still >>> demonstrates the error and contact the deal.II mailing lists with it to >>> obtain help. >>> >>> >>> Stacktrace: >>> ----------- >>> #0 >>> >>> /home/rajat/Documents/Code-Libraries/deal/dealii8.3/installed-dealii/lib/libdeal_II.g.so.8.3.0: >>> >>> void dealii::PETScWrappers::VectorBase::extract_subvector_to<unsigned int >>> const*, double*>(unsigned int const*, unsigned int const*, double*) const >>> #1 >>> >>> /home/rajat/Documents/Code-Libraries/deal/dealii8.3/installed-dealii/lib/libdeal_II.g.so.8.3.0: >>> >>> void dealii::DoFCellAccessor<dealii::DoFHandler<3, 3>, >>> false>::get_dof_values<dealii::PETScWrappers::MPI::Vector, >>> double*>(dealii::PETScWrappers::MPI::Vector const&, double*, double*) const >>> #2 >>> >>> /home/rajat/Documents/Code-Libraries/deal/dealii8.3/installed-dealii/lib/libdeal_II.g.so.8.3.0: >>> >>> void dealii::DoFCellAccessor<dealii::DoFHandler<3, 3>, >>> false>::get_interpolated_dof_values<dealii::PETScWrappers::MPI::Vector, >>> double>(dealii::PETScWrappers::MPI::Vector const&, dealii::Vector<double>&, >>> unsigned int) const >>> #3 >>> >>> /home/rajat/Documents/Code-Libraries/deal/dealii8.3/installed-dealii/lib/libdeal_II.g.so.8.3.0: >>> >>> dealii::parallel::distributed::SolutionTransfer<3, >>> dealii::PETScWrappers::MPI::Vector, dealii::DoFHandler<3, 3> >>> >::pack_callback(dealii::TriaIterator<dealii::CellAccessor<3, 3> > const&, >>> dealii::parallel::distributed::Triangulation<3, 3>::CellStatus, void*) >>> #4 >>> >>> /home/rajat/Documents/Code-Libraries/deal/dealii8.3/installed-dealii/lib/libdeal_II.g.so.8.3.0: >>> >>> std::_Function_handler<void (dealii::TriaIterator<dealii::CellAccessor<3, >>> 3> > const&, dealii::parallel::distributed::Triangulation<3, >>> 3>::CellStatus, void*), std::_Bind<std::_Mem_fn<void >>> (dealii::parallel::distributed::SolutionTransfer<3, >>> dealii::PETScWrappers::MPI::Vector, dealii::DoFHandler<3, 3> >>> >::*)(dealii::TriaIterator<dealii::CellAccessor<3, 3> > const&, >>> dealii::parallel::distributed::Triangulation<3, 3>::CellStatus, void*)> >>> (dealii::parallel::distributed::SolutionTransfer<3, >>> dealii::PETScWrappers::MPI::Vector, dealii::DoFHandler<3, 3> >*, >>> std::_Placeholder<1>, std::_Placeholder<2>, std::_Placeholder<3>)> >>> >::_M_invoke(std::_Any_data const&, >>> dealii::TriaIterator<dealii::CellAccessor<3, 3> > const&, >>> dealii::parallel::distributed::Triangulation<3, 3>::CellStatus, void*) >>> #5 >>> >>> /home/rajat/Documents/Code-Libraries/deal/dealii8.3/installed-dealii/lib/libdeal_II.g.so.8.3.0: >>> >>> std::function<void (dealii::TriaIterator<dealii::CellAccessor<3, 3> > >>> const&, dealii::parallel::distributed::Triangulation<3, 3>::CellStatus, >>> void*)>::operator()(dealii::TriaIterator<dealii::CellAccessor<3, 3> > >>> const&, dealii::parallel::distributed::Triangulation<3, 3>::CellStatus, >>> void*) const >>> #6 >>> >>> /home/rajat/Documents/Code-Libraries/deal/dealii8.3/installed-dealii/lib/libdeal_II.g.so.8.3.0: >>> >>> std::_Function_handler<void (dealii::TriaIterator<dealii::CellAccessor<3, >>> 3> >, dealii::parallel::distributed::Triangulation<3, 3>::CellStatus, >>> void*), std::function<void (dealii::TriaIterator<dealii::CellAccessor<3, 3> >>> > const&, dealii::parallel::distributed::Triangulation<3, 3>::CellStatus, >>> void*)> >::_M_invoke(std::_Any_data const&, >>> dealii::TriaIterator<dealii::CellAccessor<3, 3> >, >>> dealii::parallel::distributed::Triangulation<3, 3>::CellStatus, void*) >>> #7 >>> >>> /home/rajat/Documents/Code-Libraries/deal/dealii8.3/installed-dealii/lib/libdeal_II.g.so.8.3.0: >>> >>> std::function<void (dealii::TriaIterator<dealii::CellAccessor<3, 3> >, >>> dealii::parallel::distributed::Triangulation<3, 3>::CellStatus, >>> void*)>::operator()(dealii::TriaIterator<dealii::CellAccessor<3, 3> >, >>> dealii::parallel::distributed::Triangulation<3, 3>::CellStatus, void*) const >>> #8 >>> >>> /home/rajat/Documents/Code-Libraries/deal/dealii8.3/installed-dealii/lib/libdeal_II.g.so.8.3.0: >>> >>> >>> #9 >>> >>> /home/rajat/Documents/Code-Libraries/deal/dealii8.3/installed-dealii/lib/libdeal_II.g.so.8.3.0: >>> >>> dealii::parallel::distributed::Triangulation<3, 3>::attach_mesh_data() >>> #10 >>> >>> /home/rajat/Documents/Code-Libraries/deal/dealii8.3/installed-dealii/lib/libdeal_II.g.so.8.3.0: >>> >>> dealii::parallel::distributed::Triangulation<3, 3>::save(char const*) const >>> #11 ./fdm: FDM::Fdm<3>::create_snapshot() >>> #12 ./fdm: Problem<3>::run() >>> #13 ./fdm: main >>> >>> >>> >>> -- 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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