You are a very select reader. I know my mistake, so check out the postings with heading "Unsymmetric CG error" with related responses on the same day (with more the day after)! I use the manuals, too, but I don't find them as user friendly. I apologize for the misleading title.
Regards,
Anh
----- Original Message ----- To: Sent: Wednesday, January 31, 2001 5:45 AM
> First: Please always post a new mail with apropiate subject (includiong "FLOT"). > Don't send a followup on other topics with new questions.
> Second: There is no unsymmetric error but the solver uses an unsymmetric > procedure. This may occur due to fluid structure interaction or other > cases where the matcrices themselves are unsymmetric. > The error is given plainly: The iterations didn't converge three > times; therefore FLOTRAN stops the solution as seems to be default behavior. > Which solver did you select? > I'm not sure about the CG since I would expect CR, PCCR or PGMR.
> See Flotran Analysis Guide > Chapter 11. FLOTRAN CFD Solvers and the Matrix Equation > 11.1. Which Solver Should You Use?
> Third: As for my experience - I'm not sure about most part of my posting. > I just look into the manuals.
> Cheers
> Joerg
> > I got this error message when running FLOTRAN:
> > ****************ERROR**** > > Unsymmetric CG iterations did not converge three times. The run is > > terminated.
> > Does anyone know what an unsymmetric CG error is?