GitLab

Add missing namespace fixes for addToDiagonal

See merge request !52

Apparently the calls are not used anywhere in dune-solvers
itself, that's why the CI system didn't catch the problem.

UMFPackSolver with scalar matrix entries

See merge request !51

Previously, the class SymmetricSampleProblem would always produce
matrices and vectors with FieldMatrix/FieldVector entries of a given
user-controllable blocksize.  With this patch, the blocksize can
also be set to 0.  In that case, the resulting matrices and vectors
have 'double' entries.

In that case the BitVector will be the input vector type, but with
entry type 'char'.

Interval: handle negative multiplication

See merge request agnumpde/dune-solvers!50

Interval: scalar multiplication

See merge request agnumpde/dune-solvers!49

Fix bug in MultigridStep constructor

See merge request agnumpde/dune-solvers!45

Remove deprecated stuff from tests

See merge request agnumpde/dune-solvers!46

One constructor contained an assignment from a C pointer to
std::shared_ptr.  Apparently nobody ever uses this constructor
(otherwise the bug would have been noticed a long time ago),
but the clang CI runs for the dune-gfe modules complain.

This patch adds a fix and a small test.

CholmodSolver: Add error code member

See merge request agnumpde/dune-solvers!44

Cholmod is able to report errors and warnings in the status entry of the
cholmodCommonObject.

Details about the possible integer values can be found in the Cholmod User Guide

Minor cleanup

See merge request agnumpde/dune-solvers!43

Implementation of CHOLMOD Solver

See merge request agnumpde/dune-solvers!36

This class wrappes the dune-istl CHOLMOD method for dune-solvers module.

It is basically a copy of UMFPack solver.

There are problems with some METIS implementations (especially LibScotchMETIS)
causing random segfaults. Therefore the usage of METIS is disabled for matrices larger
than 3000 rows for now (whichs seems stable),
see https://gitlab.inria.fr/scotch/scotch/issues/8

CI: Disable C++14 runner

See merge request agnumpde/dune-solvers!41

The image of debian 9 with C++14 compiler is not updated any more
and incompatible with the new allowed usage of C++17 features.

UMFPackSolver: Remove several hard-wired linear algebra types

See merge request agnumpde/dune-solvers!40

Removing these assumptions about the linear algebra types
is one step towards support for unnested linear algebra,
like BCRSMatrix<double> etc.  More work for that is needed,
though.

Give ObstacleRestrictor an empty virtual destructor

See merge request agnumpde/dune-solvers!37

Otherwise, non-default destructors in derived class are not called
properly when handling a derived class through a base pointer.

H1SemiNorm: use smart pointer for matrix

See merge request agnumpde/dune-solvers!35

Provide mutable access to matrix in transfer operator

See merge request agnumpde/dune-solvers!34