step-5():
  dealii example code.

Cycle 0:
   Number of active cells: 20
   Total number of cells: 20
   Number of degrees of freedom: 25
   8 CG iterations needed to obtain convergence.
Cycle 1:
   Number of active cells: 80
   Total number of cells: 100
   Number of degrees of freedom: 89
   12 CG iterations needed to obtain convergence.
Cycle 2:
   Number of active cells: 320
   Total number of cells: 420
   Number of degrees of freedom: 337
   21 CG iterations needed to obtain convergence.
Cycle 3:
   Number of active cells: 1280
   Total number of cells: 1700
   Number of degrees of freedom: 1313
   38 CG iterations needed to obtain convergence.
Cycle 4:
   Number of active cells: 5120
   Total number of cells: 6820
   Number of degrees of freedom: 5185
   70 CG iterations needed to obtain convergence.
Cycle 5:
   Number of active cells: 20480
   Total number of cells: 27300
   Number of degrees of freedom: 20609
   136 CG iterations needed to obtain convergence.

step-5():
  Normal end of execution.