From: wolf Date: Wed, 14 Apr 2004 22:41:18 +0000 (+0000) Subject: . X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=05b73e07216a5f84270a0e5e72d8449821964fc7;p=dealii-svn.git . git-svn-id: https://svn.dealii.org/trunk@9010 0785d39b-7218-0410-832d-ea1e28bc413d --- diff --git a/deal.II/doc/tutorial/chapter-2.step-by-step/step-15.data/intro.tex b/deal.II/doc/tutorial/chapter-2.step-by-step/step-15.data/intro.tex index b02796cedd..2983dc989a 100644 --- a/deal.II/doc/tutorial/chapter-2.step-by-step/step-15.data/intro.tex +++ b/deal.II/doc/tutorial/chapter-2.step-by-step/step-15.data/intro.tex @@ -236,7 +236,7 @@ and a good refinement criterion, then the nonlinear solver gets stuck quite readily for this highly nonlinear problem. Initially, I was hardly able to find solutions for which the energy dropped below 0.005, while the energy after the final iteration of the program as it is is usually around 0.0003, -and occasionally down to 3.5e-5. +and occasionally down to less than 3e-5. However, this is not enough. In the program, we start the solver on the coarse mesh many times, with randomly perturbed starting values, and while it diff --git a/deal.II/doc/tutorial/chapter-2.step-by-step/step-15.data/results.html b/deal.II/doc/tutorial/chapter-2.step-by-step/step-15.data/results.html index e67fccc1c1..fcdf73a6ae 100644 --- a/deal.II/doc/tutorial/chapter-2.step-by-step/step-15.data/results.html +++ b/deal.II/doc/tutorial/chapter-2.step-by-step/step-15.data/results.html @@ -1,2 +1,84 @@

Results

+ +

+If run, the program generates output like this: +

+ +
+Realization 0:
+   Energy: 0.00267545
+   Energy: 0.000774987
+   Energy: 0.000369921
+   Energy: 0.000196206
+   Energy: 0.000141912
+   Energy: 0.000128605
+   Energy: 0.000124399
+   Energy: 0.000123254
+   Energy: 0.000122788
+   Energy: 0.00012256
+   Energy: 0.000122465
+   Energy: 0.000122434
+   Energy: 0.000122427
+   Energy: 0.000119443
+   Energy: 0.000119442
+
+Realization 1:
+   Energy: 0.00283288
+   Energy: 0.000830749
+   Energy: 0.000346346
+   Energy: 0.000183367
+   Energy: 0.000139092
+   Energy: 0.000125745
+   Energy: 0.000121538
+   Energy: 0.000120382
+   Energy: 0.000119934
+   Energy: 0.000119677
+   Energy: 0.000119534
+   Energy: 0.000119473
+   Energy: 0.000119462
+   Energy: 0.000119643
+
+....
+
+Realization 9:
+   Energy: 0.0103424
+   Energy: 0.00820572
+   Energy: 0.00771209
+   Energy: 0.00759366
+   Energy: 0.00755131
+   Energy: 0.00753996
+   Energy: 0.00753659
+   Energy: 0.0075344
+   Energy: 0.00753374
+   Energy: 0.00753362
+   Energy: 0.0071671
+   Energy: 0.00716708
+
+ +

+The lowest energy yet seen is in this run (you only get this by increasing the +number of runs): +

+
+Realization 18:
+   Energy: 0.00200645
+   Energy: 0.000638519
+   Energy: 0.00022749
+   Energy: 9.18962e-05
+   Energy: 5.42442e-05
+   Energy: 3.94415e-05
+   Energy: 3.42307e-05
+   Energy: 3.30727e-05
+   Energy: 3.19998e-05
+   Energy: 3.18104e-05
+   Energy: 2.97091e-05
+   Energy: 3.5011e-05
+
+ +

+Apparently something went wrong in the last step (the energy increased, which +it shouldn't - but then this is a strongly nonlinear problem), which is also +why the program aborted after this iteration. +

+