[petsc-users] Segfault in DMCreateMatrix

Blondel, Sophie sblondel at utk.edu
Fri Jul 25 14:00:19 CDT 2025


Hi,

I am using PETSc version v3.23.4 for my code https://urldefense.us/v3/__https://github.com/ORNL-Fusion/xolotl/blob/develop/xolotl/solver/src/PetscSolver.cpp__;!!G_uCfscf7eWS!dqsvk_x8eZNzest4mbTcVDQ6NcJLDJOQGX0QxmrWxJeM8s8Hi2altiu6F4EFTeZLDmw5F1rDvE-jHw3VgvjKx_kg$  and I am getting a segfault in DMCreateMatrix, more specifically from gdb:
#0  0x0000000000000651 in ?? ()
#1  0x00007ffff58f0119 in DMCreateMatrix (dm=0x55555571bb90, mat=0x7fffffffc680)
    at /home/sophie/Workspace/xolotl-develop-source/external/petsc/src/dm/interface/dm.c:1519
#2  0x00007ffff7cafc9d in xolotl::solver::PetscSolver::initialize(int, double, _p_DM*, _p_Vec*) ()
   from /home/sophie/Workspace/xolotl-develop-build/xolotl/solver/libxolotlSolver.so

PETSc was built with:
./configure PETSC_DIR=/home/sophie/Workspace/xolotl-develop-source/external/petsc PETSC_ARCH=dbg --prefix=/home/sophie/Workspace/xolotl-develop-build/external/petsc_install --with-fc=0 --with-cuda=0 --with-mpi --with-openmp=0 --with-debugging=1 --with-shared-libraries --with-64-bit-indices --download-kokkos --download-kokkos-kernels --with-cudac=0

Let me know what additional information I can provide to resolve the issue.

Best,

Sophie
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