Opened 8 years ago
Last modified 8 years ago
#4213 new defect
LinearSolver should scale equation system
| Reported by: | Rüdiger Franke | Owned by: | somebody |
|---|---|---|---|
| Priority: | high | Milestone: | Future |
| Component: | Cpp Run-time | Version: | |
| Keywords: | Cc: | Niklas Worschech |
Description
The commit Separate nonlinear and linear solver removed the linear solver part from Newton. Unfortunately it also removed the scaling with fNominal.
Don't know if the optional KLU scales internally. The default DGESV does not seem to do it. Shouldn't a scaling be applied, at least with DGESV?
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We will add the f-scaling for linear systems to the new linear solver DGESV, it was removed accidentally.