From 887c2706131443a1fe2094bb7803f9a5f11d2739 Mon Sep 17 00:00:00 2001 From: bangerth Date: Fri, 30 Sep 2011 14:37:45 +0000 Subject: [PATCH] We don't actually use Epetra_Map by hand in this program. git-svn-id: https://svn.dealii.org/trunk@24484 0785d39b-7218-0410-832d-ea1e28bc413d --- deal.II/examples/step-32/doc/intro.dox | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/deal.II/examples/step-32/doc/intro.dox b/deal.II/examples/step-32/doc/intro.dox index 9e52b89d3e..b0b2e95195 100644 --- a/deal.II/examples/step-32/doc/intro.dox +++ b/deal.II/examples/step-32/doc/intro.dox @@ -690,14 +690,12 @@ are part of Trilinos' Epetra library of basic linear algebra and tool classes: producing a communicator object that only encompasses this subset of machines; there is really no compelling reason to do so here, however. -
  • The Epetra_Map class is used to describe which elements of a vector or which - rows of a matrix reside on a given machine that is part of a +
  • The IndexSet class is used to describe which elements of a vector or which + rows of a matrix should reside on the current machine that is part of a communicator. To create such an object, you need to know (i) the total - number of elements or rows, (ii) the number of elements or rows you want to - store on the current machine, and (iii) which communicator enumerates the - machines that we want this matrix or vector be stored on. We will set up - these maps (which we call partitioners in our code, since we - believe this is a better word) in the + number of elements or rows, (ii) the indices of the elements you want to + store locally. We will set up + these partitioners in the BoussinesqFlowProblem::setup_dofs function below and then hand it to every %parallel object we create. -- 2.39.5