Changes between Initial Version and Version 1 of Ticket #4396
- Timestamp:
- 2017-06-16T15:43:45Z (7 years ago)
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Ticket #4396 – Description
initial v1 23 23 - setting the nominal attribute on the badly scaled variables does not improve the situation - in fact, it makes it slightly worse 24 24 25 One can expect that similar problems will arise when using IDA in DAE mode to solve real-life problems; as soon as the units of the variables are such that their order of magnitude is much different, there will be a performance penalty of one order of magnitude (or possibly more, for larger models) in terms of simulation time.25 One can expect that similar problems will arise when using IDA in DAE mode to solve real-life problems; as soon as the units of the variables are such that their order of magnitude (and the order of magnitude of equation residuals) is much different, there will be a performance penalty of one order of magnitude (or possibly more, for larger models) in terms of simulation time. 26 26 27 27 I would suggest to investigate why this happens and to introduce the appropriate corrective measures, so that the simulation time of models {{{Test1}}} and {{{Test3}}} becomes comparable.
