From 14c0275e82f6b6c1fb106de7ba2b99a4f1a08c70 Mon Sep 17 00:00:00 2001 From: bangerth Date: Sun, 24 Oct 2010 16:16:54 +0000 Subject: [PATCH] Mention step-40. git-svn-id: https://svn.dealii.org/trunk@22453 0785d39b-7218-0410-832d-ea1e28bc413d --- deal.II/examples/step-17/doc/results.dox | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/deal.II/examples/step-17/doc/results.dox b/deal.II/examples/step-17/doc/results.dox index 2b8300805d..bff0c2d8f0 100644 --- a/deal.II/examples/step-17/doc/results.dox +++ b/deal.II/examples/step-17/doc/results.dox @@ -207,3 +207,15 @@ we contend ourselves with showing output from cycle 4: The left picture shows the partitioning of the cube into 16 processes, whereas the right one shows the x-displacement along two cutplanes through the cube. + + + +

Possibilities for extensions

+ +The program keeps a complete copy of the Triangulation and DoFHandler objects +on every processor. That's obviously the bottleneck for as far as +parallelization goes. Internally, within deal.II, parallelizing the data +structures used in hierarchic and unstructured triangulations is a very hard +problem, and it took us a few more years to make this happen. The step-40 +tutorial program and the @ref distributed documentation module talk about how +to do these steps and what it takes from an application perspective. -- 2.39.5