message: add verify for basic example
diff: @@ -226,6 +226,9 @@ int main(int argc, char *argv[])
  }
  else if (amgx_lib && strcmp(amgx_json_file,"") == 0)
  {
  + MFEM_VERIFY(!amgx_mpi_teams,
  + "Please add JSON file to try AmgX with teams");
  +
  bool amgx_verbose = false;
  prec = new AmgXSolver(MPI_COMM_WORLD, AmgXSolver::PRECONDITIONER,
  amgx_verbose);
  