According to frame #6, we are trying to cast a nullptr (oldvar): #6 0x00007ffff598d1bf in libMesh::cast_ptr<libMesh::PetscMatrix<double>*, libMesh::SparseMatrix<double> > (oldvar=0x0) at ./include/libmesh/libmesh_common.h:582
In libMesh::cast_ptr, we throw an error if the result of the cast is a nullptr (which is what happens when the incoming pointer is nullptr). The error message you are actually seeing on line 582 is caused when we dereference the input nullptr in order to try and print a better error message. So, we should probably try to avoid doing that, but the bigger question is how/why you would are calling solve() with a nullptr preconditioner matrix... this could be due to some other bug in your user code perhaps. -- John On Mon, Aug 9, 2021 at 7:39 PM Renato Poli <rebp...@gmail.com> wrote: > Hi, > > I see this issue: > > Failed to convert N7libMesh12SparseMatrixIdEE pointer to > PN7libMesh11PetscMatrixIdEE > The N7libMesh12SparseMatrixIdEE appears to be a > Thread 1 "sim" hit Breakpoint 1, 0x00007ffff1d58d60 in PMPI_Abort () from > /usr/lib/x86_64-linux-gnu/libmpi.so.40 > (gdb) bt > #0 0x00007ffff1d58d60 in PMPI_Abort () from > /usr/lib/x86_64-linux-gnu/libmpi.so.40 > #1 0x00007ffff4ff6658 in libMesh::libmesh_terminate_handler () at > ../src/base/libmesh.C:321 > #2 0x00007ffff1b7f38c in ?? () from > /usr/lib/x86_64-linux-gnu/libstdc++.so.6 > #3 0x00007ffff1b7f3f7 in std::terminate() () from > /usr/lib/x86_64-linux-gnu/libstdc++.so.6 > #4 0x00007ffff1b7f6a9 in __cxa_throw () from > /usr/lib/x86_64-linux-gnu/libstdc++.so.6 > #5 0x00007ffff1b733b1 in __cxa_bad_typeid () from > /usr/lib/x86_64-linux-gnu/libstdc++.so.6 > #6 0x00007ffff598d1bf in libMesh::cast_ptr<libMesh::PetscMatrix<double>*, > libMesh::SparseMatrix<double> > (oldvar=0x0) at > ./include/libmesh/libmesh_common.h:582 > #7 0x00007ffff5bbf9a5 in libMesh::PetscNonlinearSolver<double>::solve > (this=0x555555a1e4a0, pre_in=..., x_in=..., r_in=...) at > ../src/solvers/petsc_nonlinear_solver.C:794 > #8 0x00007ffff5c52062 in libMesh::NonlinearImplicitSystem::solve > (this=0x5555559d0390) at ../src/systems/nonlinear_implicit_system.C:189 > #9 0x000055555568695f in Poroelastic::solve (this=0x555555a1ece0) at > /home/renato/dev/chimas3d/src/Poroelastic.cpp:253 > #10 0x000055555562f8b7 in TimeLoop::main_loop (this=0x7fffffffda50) at > /home/renato/dev/chimas3d/src/TimeLoop.cpp:86 > #11 0x000055555562f1be in TimeLoop::TimeLoop (this=0x7fffffffda50, ci=..., > m=...) at /home/renato/dev/chimas3d/src/TimeLoop.cpp:23 > #12 0x000055555561c57c in main (argc=1, argv=0x7fffffffddc8) at > /home/renato/dev/chimas3d/src/main.cpp:17 > > I am using libmesh master branch and petsc 3.15.3. > > Any idea of what might be wrong? > > Thanks, > Renato > > _______________________________________________ > Libmesh-users mailing list > Libmesh-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/libmesh-users > -- John _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
