/home/xiaodong.liu/Documents/petsc-3.21.1/petsc/arch-linux-c-opt/bin/mpirun -n 2 ./ex72  -f /home/xiaodong.liu/Documents/PetscData/poisson_DMPLEX_32x32_16.dat -pc_type bddc -ksp_type cg -ksp_norm_type natural -ksp_error_if_not_converged -mat_type is
[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
[0]PETSC ERROR: KSPSolve has not converged due to Nan or Inf inner product
[0]PETSC ERROR: See https://petsc.org/release/faq/ for trouble shooting.
[0]PETSC ERROR: Petsc Release Version 3.21.1, unknown 
[0]PETSC ERROR: ./ex72 on a arch-linux-c-opt named kirin.remcominc.com by xiaodong.liu Mon Jul 29 17:11:56 2024
[0]PETSC ERROR: Configure options --with-cc=gcc --with-fc=gfortran --with-cxx=g++ --download-fblaslapack --download-mpich --with-scalar-type=complex --with-debugging=no --with-precision=single
[0]PETSC ERROR: #1 KSPSolve_CG() at /home/xiaodong.liu/Documents/petsc-3.21.1/petsc/src/ksp/ksp/impls/cg/cg.c:172
[0]PETSC ERROR: #2 KSPSolve_Private() at /home/xiaodong.liu/Documents/petsc-3.21.1/petsc/src/ksp/ksp/interface/itfunc.c:905
[0]PETSC ERROR: #3 KSPSolve() at /home/xiaodong.liu/Documents/petsc-3.21.1/petsc/src/ksp/ksp/interface/itfunc.c:1078
[0]PETSC ERROR: #4 main() at ex72.c:338
[0]PETSC ERROR: PETSc Option Table entries:
[0]PETSC ERROR: -f /home/xiaodong.liu/Documents/PetscData/poisson_DMPLEX_32x32_16.dat (source: command line)
[0]PETSC ERROR: -ksp_error_if_not_converged (source: command line)
[0]PETSC ERROR: -ksp_norm_type natural (source: command line)
[0]PETSC ERROR: -ksp_type cg (source: command line)
[0]PETSC ERROR: -mat_type is (source: command line)
[0]PETSC ERROR: -pc_type bddc (source: command line)
[0]PETSC ERROR: ----------------End of Error Message -------send entire error message to petsc-maint@mcs.anl.gov----------
application called MPI_Abort(MPI_COMM_SELF, 91) - process 0