From: steigemann Date: Fri, 26 Oct 2012 16:12:04 +0000 (+0000) Subject: Interface to PETSc::PreconditionNone and ParaSails Preconditioner from the Hypre... X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f4830ac803aaf424b81b26b8bca287370e443a3;p=dealii-svn.git Interface to PETSc::PreconditionNone and ParaSails Preconditioner from the Hypre Suite git-svn-id: https://svn.dealii.org/trunk@27209 0785d39b-7218-0410-832d-ea1e28bc413d --- diff --git a/deal.II/doc/news/changes.h b/deal.II/doc/news/changes.h index 02a25131b9..a7517ce660 100644 --- a/deal.II/doc/news/changes.h +++ b/deal.II/doc/news/changes.h @@ -108,6 +108,18 @@ never working correctly and it is not used.
    +
  1. New: Added PETScWrappers::PreconditionParaSails and +PETScWrappers::PreconditionNone. PETScWrappers::PreconditionParaSails +implements the interface to use the ParaSails sparse approximate +inverse preconditioner from the HYPRE suite. ParaSails supports +parallel distributed computations and can handle nonsymmetric +and also indefinite problems. PETScWrappers::PreconditionNone +implements non-preconditioning in PETSc which can be of use +together with the PETScWrappers::MatrixFree class. + +
    +(Martin Steigemann, 2012/10/26) +
  2. New: Added SparsityTools::distribute_sparsity_pattern() for BlockCompressedSimpleSparsityPattern. This allows parallel computations with distributed::Triangulation and PETScWrappers::MPI::BlockSparseMatrix.