Hi,
just had a chat with Andreas. Basically, the topic was that the
Chebychev propagator works, but poorly (slowly) so, and needs widespread
adaption of other interfaces to be integrated properly.
* discussed how Chebychev-Propagator can automatically try to get the
spectrum of the operator
- somewhat tricky and cumbersome, put off for now
- check if Chebychev fails or works poorly with complex spectra
(=> Ulf)
* move OperatorMatrix to operator; seems better integrated there
* Chebychev should check /fail for time-dependent operators
- LinearOperators need function isTimeDependent()
* Chebychev requires fixed time steps for optimal performance
- augment Propagator interface by functions setTimestep() and
propagateStep(int n_0, int n_1)
- propagate changes, update Chebychev heavily
Ulf
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