Likely mis-configured network. What do you get for:
host `hostname` Some additional info: https://petsc.org/release/faq/#what-does-it-mean-when-make-check-errors-on-petscoptionsinsertfile For mis-configured network - the following fix might work: echo 127.0.0.1 `hostname` | sudo tee -a /etc/hosts Satish On Wed, 21 Dec 2022, Guilherme Lima wrote: > Hello > > So, this error occurred while running example 50 on > petsc/src/ksp/ksp/tutorials > The machine also have a MPI installed, so in order to run the ex50 I did: > > /home/slave12/projects/petsc/arch-linux-c-debug/bin/mpiexec -n 4 ./ex50 > -da_grid_x 120 -da_grid_y 120 -pc_type lu -pc_factor_mat_solver_type > superlu_dist -ksp_monitor -ksp_view > > Expecting that the problem was solved, but instead it showed an Error > message > Configure.log, make.log and error attached. >
