Hello Sir/Madam,

We tried to run the tutorial steps following site.

https://www.mcs.anl.gov/petsc/documentation/tutorials/HandsOnExercise.html

Compile src/ksp/ksp/examples/tutorial/ex11.c

      cd /petsc-3.7.7/src/ksp/ksp/examples/tutorial/ex11.c
      make ex11

Run simple advection through a tiny hybrid mesh
We are new to the petsc and when we ran the ex11 input we got a screen output like one below

       ~/petsc-3.7.7/openmpi-gnu-O3/bin/mpiexec  -n 1 ./ex11 -f ${PETSC_DIR}/share/petsc/datafiles/meshes/sevenside.exo

  $ Norm of error 0.00133762 iterations 26

When we increase the number of core the result did not change.

	$ ~/petsc-3.7.7/openmpi-gnu-O3/bin/mpiexec  -n 4 ./ex11 -f ${PETSC_DIR}/share/petsc/datafiles/meshes/sevenside.exo 
	$ Norm of error 0.00133762 iterations 26

But the expected value is :

  0  time        0  |x|    7.155  
  1  time   0.7211  |x|    4.386  
  2  time    1.442  |x|    1.968  
  3  time    2.163  |x|    1.925  
CONVERGED_TIME at time 2.16333 after 3 steps

Moreover, we got the similar output in the other examples and did not see any running time .

Could you please help in this issue ?

Kind Regards.

Gürcan Serttaş System Engineer E-mail: gurcan.serttas@eduline.com.tr Mobile: +90 541 350 40 72 Phone: +90 212 324 65 70 Address: Nisbetiye Mah. Gümüş Sok Kır Apt. Sitesi B Blok No:5/4 34340 Beşiktaş / İSTANBUL