]> https://gitweb.dealii.org/ - dealii.git/commit
step-21:
authorWolfgang Bangerth <bangerth@math.tamu.edu>
Wed, 6 Apr 2011 19:54:38 +0000 (19:54 +0000)
committerWolfgang Bangerth <bangerth@math.tamu.edu>
Wed, 6 Apr 2011 19:54:38 +0000 (19:54 +0000)
commit69388aaa81acf679c45a79420159fae6d56d0c74
treee58fcf7e54f469e38334570bedbe70310c0de6ac
parent90dd13bda0349530bfc90c43ae7f0a5e3214b17f
step-21:
If the size of a linear system is small, i.e. when the mesh is very
coarse, then it is sometimes not sufficient to set a maximum of
<code>src.size()</code> CG iterations before the solver in the
<code>vmult()</code> function converges. (This is, of course, a result
of numerical round-off, since we know that on paper, the CG method
converges in at most <code>src.size()</code> steps.) As a consequence,
we set the maximum number of iterations equal to the maximum of the
size of the linear system and 200.

git-svn-id: https://svn.dealii.org/trunk@23563 0785d39b-7218-0410-832d-ea1e28bc413d
deal.II/doc/news/changes.h

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