From: Wolfgang Bangerth Date: Sun, 30 Oct 2016 15:37:40 +0000 (-0600) Subject: Merge pull request #3294 from kronbichler/master X-Git-Tag: v8.5.0-rc1~520 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8ab064c8c3db36e041c4ff496e2b8f41c032079d;p=dealii.git Merge pull request #3294 from kronbichler/master Add general preconditioner for Chebyshev --- 8ab064c8c3db36e041c4ff496e2b8f41c032079d diff --cc doc/news/changes.h index 7c697cdc63,51dbbea2c4..902c41c6b0 --- a/doc/news/changes.h +++ b/doc/news/changes.h @@@ -405,17 -391,26 +405,32 @@@ inconvenience this causes

Specific improvements

    -
  1. New: Add MatrixFreeOperators::MassOperator representing a mass matrix. + +
  2. Fixed: Increased precision of timesteps in DataOutInterface::write_pvd_record(). +
    + (Rajat Arora, 2016/10/29) +
    3. + +
  3. New: Add MatrixFreeOperators::MassOperator representing a mass matrix.
    (Daniel Arndt, 2016/10/27) -
  4. +
    5. +
  5. New: There is a new class DiagonalMatrix which represents a diagonal + matrix via a vector. This is useful for representing Jacobi preconditioners + with matrix-free methods. +
    + (Martin Kronbichler, 2016/10/27) +
    6. + +
  6. New: The class PreconditionChebyshev now offers a third template + parameter PreconditionerType that is passed to the preconditioner setup via + AdditionalData::preconditioner. This allows using other preconditioners than + the default (and previous) selection of a point-Jacobi preconditioner. +
    + (Martin Kronbichler, 2016/10/27) +
    7. +
  7. New: Add ArpackSolver::set_shift() to set the shift value in spectral transformation.