22 Sep
2015
22 Sep
'15
9:10 a.m.
Dear all, I would like to supply a preconditioning matrix for Newton that depends on current state. Does it do the Right Thing if I just use the field that is being solved into for this? cheers --cjc -- http://www.imperial.ac.uk/people/colin.cotter www.cambridge.org/9781107663916
22 Sep
22 Sep
9:12 a.m.
On 22 Sep 2015, at 09:10, Colin Cotter <colin.cotter@imperial.ac.uk> wrote:
Dear all, I would like to supply a preconditioning matrix for Newton that depends on current state. Does it do the Right Thing if I just use the field that is being solved into for this?
The preconditioning matrix will be reassembled at every newton step unless you ask for it not to be. So it should just DTRT. Lawrence
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Colin Cotter
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Lawrence Mitchell