[Nek5000-users] SETDTC message

[nek5000-users at lists.mcs.anl.gov]

Hi Frank,

Yes - the message can be ignored. (Sorry about that...,
probably one of those things that will be cleaned up
in the next major revision...)


It's nice to call the routine so that CFL is computed, just
so you know where you stand...

Paul



On Mon, 19 Apr 2010, nek5000-users at lists.mcs.anl.gov wrote:

> Hi Paul,

I always have dt < 0.  In this case, that message can safely be ignored?
By the way, if dt < 0, should this routine even be called?

Cheers,
Frank

On Mon, 2010-04-19 at 16:27 -0500, nek5000-users at lists.mcs.anl.gov
wrote:
> Hi Frank,
> 
> Set DT < 0 (param 12 in .rea file) and then dt = |param(12)| for
> the duration of the run.  (Sometimes you still get the message though...)
> 
> Paul
> 
> On Mon, 19 Apr 2010, nek5000-users at lists.mcs.anl.gov wrote:
> 
> > Hello all,
> 
> I am coming across the following message "Problem calculating new DT
> Discriminant" in subroutine "SETDTC" where a new timestep based on the
> CFL condition is computed.  Aside from what the message means, how can
> one turn off variable time stepping (which I assume is occurring since
> this subroutine is being called).
> 
> Cheers,
> Frank
> -- 
> Frank Herbert Muldoon, Ph.D. Mechanical Engineering
> Technische Universität Wien (Technical University of Vienna)
> Inst. f. Strömungsmechanik und Wärmeübertragung (Institute of Fluid
> Mechanics and Heat Transfer)
> Resselgasse 3
> 1040 Wien
> Tel: +4315880132232
> Fax: +4315880132299 
> Cell:+436765203470
> fmuldoo (skype)
> http://tetra.fluid.tuwien.ac.at/fmuldoo/public_html/webpage/frank-muldoon.html
> 
> _______________________________________________
> Nek5000-users mailing list
> Nek5000-users at lists.mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
> _______________________________________________ Nek5000-users mailing list Nek5000-users at lists.mcs.anl.gov https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users
-- 
Frank Herbert Muldoon, Ph.D. Mechanical Engineering
Technische Universität Wien (Technical University of Vienna)
Inst. f. Strömungsmechanik und Wärmeübertragung (Institute of Fluid
Mechanics and Heat Transfer)
Resselgasse 3
1040 Wien
Tel: +4315880132232
Fax: +4315880132299 
Cell:+436765203470
fmuldoo (skype)
http://tetra.fluid.tuwien.ac.at/fmuldoo/public_html/webpage/frank-muldoon.html

_______________________________________________
Nek5000-users mailing list
Nek5000-users at lists.mcs.anl.gov
https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users