I am using 'MatMumpsGetInverse()' to get the inverse of a sparse matrix. I am using parts of ex214.c <https://gitlab.com/petsc/petsc/-/blob/8372926a7ae049f36f382da6b36410caecb0415f/src/mat/examples/tests/ex214.c> code to get the inverse, but I get an error that seems to be coming from MUMPS-library. Any suggestions? ERROR: [0]PETSC ERROR: --------------------- Error Message -------------------------------------------------------------- [0]PETSC ERROR: Error in external library [0]PETSC ERROR: Error reported by MUMPS in solve phase: INFOG(1)=-3 INFO(2)=3 [0]PETSC ERROR: See https://petsc.org/release/faq/ for trouble shooting. [0]PETSC ERROR: Petsc Release Version 3.19.3, unknown [0]PETSC ERROR: ./MatInv_MUMPS on a arch-linux-c-debug named LAPTOP-0CP4FI1T by maitri Thu Jul 27 16:35:02 2023 [0]PETSC ERROR: Configure options --with-cc=gcc --with-cxx=g++ --with-fc=gfortran --download-mpich --download-fblaslapack --with-matlab --with-matlab-dir=/usr/local/MATLAB/R2022a --download-hdf5 --with-hdf5=1 --download-mumps --download-scalapack --download-parmetis --download-metis --download-ptscotch --download-bison --download-cmake [0]PETSC ERROR: #1 MatMumpsGetInverse_MUMPS() at /home/maitri/petsc/src/mat/impls/aij/mpi/mumps/mumps.c:2720 [0]PETSC ERROR: #2 MatMumpsGetInverse() at /home/maitri/petsc/src/mat/impls/aij/mpi/mumps/mumps.c:2753 [0]PETSC ERROR: #3 main() at MatInv_MUMPS.c:74 [0]PETSC ERROR: No PETSc Option Table entries [0]PETSC ERROR: ----------------End of Error Message -------send entire error message to [email protected] application called MPI_Abort(MPI_COMM_SELF, 76) - process 0 [unset]: PMIU_write error; fd=-1 buf=:cmd=abort exitcode=76 message=application called MPI_Abort(MPI_COMM_SELF, 76) - process 0 : system msg for write_line failure : Bad file descriptor Maitri