Timestep 0: t=0 years
Rebuilding Stokes preconditioner...
- Solving Stokes system... 41 iterations.
- Maximal velocity: 60.672 cm/year
- Time step: 17661 years
+ Solving Stokes system... 40 iterations.
+ Maximal velocity: 60.4935 cm/year
+ Time step: 18166.9 years
17 CG iterations for temperature
Temperature range: 973 4273.16
-Number of active cells: 16,803 (on 7 levels)
-Number of degrees of freedom: 266,589 (144,120+50,409+72,060)
+Number of active cells: 16,389 (on 7 levels)
+Number of degrees of freedom: 259,617 (140,300+49,167+70,150)
Timestep 0: t=0 years
Rebuilding Stokes preconditioner...
- Solving Stokes system... 33 iterations.
- Maximal velocity: 60.6718 cm/year
- Time step: 11032.2 years
+ Solving Stokes system... 49 iterations.
+ Maximal velocity: 60.5202 cm/year
+ Time step: 10619.2 years
19 CG iterations for temperature
Temperature range: 973 4273.16
-Number of active cells: 21,024 (on 8 levels)
-Number of degrees of freedom: 339,999 (184,618+63,072+92,309)
+Number of active cells: 20,124 (on 8 levels)
+Number of degrees of freedom: 323,145 (175,182+60,372+87,591)
Timestep 0: t=0 years
Rebuilding Stokes preconditioner...
- Solving Stokes system... 33 iterations.
- Maximal velocity: 60.6835 cm/year
- Time step: 5520.09 years
+ Solving Stokes system... 51 iterations.
+ Maximal velocity: 59.9101 cm/year
+ Time step: 5334.14 years
18 CG iterations for temperature
- Temperature range: 973 4273.44
+ Temperature range: 973 4273.43
-Timestep 1: t=5520.09 years
+Timestep 1: t=5334.14 years
- Solving Stokes system... 34 iterations.
- Maximal velocity: 61.9054 cm/year
- Time step: 5410.41 years
+ Solving Stokes system... 49 iterations.
+ Maximal velocity: 61.0837 cm/year
+ Time step: 5232.24 years
18 CG iterations for temperature
- Temperature range: 973 4273.44
+ Temperature range: 973 4273.43
-Timestep 2: t=10930.5 years
+Timestep 2: t=10566.4 years
Solving Stokes system... 24 iterations.
- Maximal velocity: 63.1348 cm/year
- Time step: 5304.37 years
+ Maximal velocity: 62.265 cm/year
+ Time step: 5133.56 years
18 CG iterations for temperature
- Temperature range: 973 4273.44
+ Temperature range: 973 4273.43
[...]
-Timestep 100: t=283833 years
+Timestep 100: t=270918 years
- Solving Stokes system... 23 iterations.
- Maximal velocity: 168.248 cm/year
- Time step: 1732.43 years
- 18 CG iterations for temperature
- Temperature range: 973 4285.06
+ Solving Stokes system... 22 iterations.
+ Maximal velocity: 161.391 cm/year
+ Time step: 1683.55 years
+ 17 CG iterations for temperature
+ Temperature range: 973 4282.45
-Number of active cells: 42,681 (on 8 levels)
-Number of degrees of freedom: 694,359 (377,544+128,043+188,772)
+Number of active cells: 54,717 (on 8 levels)
+Number of degrees of freedom: 880,626 (477,650+164,151+238,825)
+---------------------------------------------+------------+------------+
-| Total wallclock time elapsed since start | 140s | |
+| Total wallclock time elapsed since start | 170s | |
| | | |
| Section | no. calls | wall time | % of total |
+---------------------------------+-----------+------------+------------+
-| Assemble Stokes system | 103 | 7.08s | 5.1% |
-| Assemble temperature matrices | 12 | 0.702s | 0.5% |
-| Assemble temperature rhs | 103 | 10.3s | 7.3% |
-| Build Stokes preconditioner | 12 | 3.6s | 2.6% |
-| Solve Stokes system | 103 | 103s | 74% |
-| Solve temperature system | 103 | 8.13s | 5.8% |
-| Postprocessing | 3 | 0.417s | 0.3% |
-| Refine mesh structure, part 1 | 12 | 0.859s | 0.61% |
-| Refine mesh structure, part 2 | 12 | 1.15s | 0.82% |
-| Setup dof systems | 13 | 4.13s | 2.9% |
+| Assemble Stokes system | 103 | 2.25s | 1.3% |
+| Assemble temperature matrices | 12 | 0.296s | 0.17% |
+| Assemble temperature rhs | 103 | 9.66s | 5.7% |
+| Build Stokes preconditioner | 12 | 1.78s | 1% |
+| Solve Stokes system | 103 | 149s | 88% |
+| Solve temperature system | 103 | 1.84s | 1.1% |
+| Postprocessing | 3 | 0.398s | 0.23% |
+| Refine mesh structure, part 1 | 12 | 0.599s | 0.35% |
+| Refine mesh structure, part 2 | 12 | 0.216s | 0.13% |
+| Setup dof systems | 13 | 2.15s | 1.3% |
+---------------------------------+-----------+------------+------------+
[...]
We can clearly not show all output files produced by this program when
run for a longer period of time, so let us
-only show the output from every 2500th time step here:
+only show the output from every 2500th time step here (these figures
+are from a version of this tutorial program before the introduction of
+manifolds, when it was not yet possible to arrange vertices along
+circles; the figures may therefore look slightly different if you run
+the current version):
<table>
<tr>
<td>
</ul>
-<h3> Possible extensions </h3>
-
-There are many ways to extend the current program. However, rather than
+There are many other ways to extend the current program. However, rather than
discussing them here, let us point to the much larger open
source code Aspect (see http://aspect.dealii.org/ ) that constitutes the
further development of step-32 and that already includes many such possible