[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
[0]PETSC ERROR: Object is in wrong state
[0]PETSC ERROR: Matrix is missing diagonal entry in row 0 (20)
[0]PETSC ERROR: See https://petsc.org/release/faq/ for trouble shooting.
[0]PETSC ERROR: Petsc Development GIT revision: v3.18.4-529-g995ec06f924  GIT Date: 2023-02-03 18:41:48 +0000
[0]PETSC ERROR: ./problem on a arch-darwin-c-opt named HC20210312 by karthikeyan.chockalingam Sat Feb  4 16:47:05 2023
[0]PETSC ERROR: Configure options --with-debugging=0 --download-fblaslapack=yes --download-scalapack=yes --download-mumps=yes
[0]PETSC ERROR: #1 MatZeroRowsColumns_SeqAIJ() at /Users/karthikeyan.chockalingam/PETSc/petsc/src/mat/impls/aij/seq/aij.c:2225
[0]PETSC ERROR: #2 MatZeroRowsColumns() at /Users/karthikeyan.chockalingam/PETSc/petsc/src/mat/interface/matrix.c:6109
[0]PETSC ERROR: #3 MatZeroRowsColumns_MPIAIJ() at /Users/karthikeyan.chockalingam/PETSc/petsc/src/mat/impls/aij/mpi/mpiaij.c:879
[0]PETSC ERROR: #4 MatZeroRowsColumns() at /Users/karthikeyan.chockalingam/PETSc/petsc/src/mat/interface/matrix.c:6109
[0]PETSC ERROR: #5 main() at problem.c:98
[0]PETSC ERROR: No PETSc Option Table entries
[0]PETSC ERROR: ----------------End of Error Message -------send entire error message to petsc-maint@mcs.anl.gov----------
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 0 in communicator MPI_COMM_SELF
with errorcode 73.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.