[TRNSYS-users] iterations/trace limit

Jeff Thornton thornton at tess-inc.com
Tue Aug 5 10:39:53 PDT 2008


<I have set "trace" to 1000 iterations but when i check the deck-file, i
notice
that it  stops  after 32 iterations. Shouldn't it go to 1000 before it
stops?>

It will go up to 1000 only if it needs to go that high; stopping short if
it converges before that limit.

<The convergence is set very low: 0.00000001, absolute.
When i set it higher; f.e. 0.01 relative; the simulation runs without
error 441 but the results not close enough to where they should be.>

Wow - I can't remember seeing tolerances that low before.  What are you
doing to need them that low?  I prefer tolerances in the 0.0001 to 0.00001
range with small timesteps (1 minute or so).

Jeff



Jeff Thornton
President - TESS, LLC

2916 Marketplace Drive - Suite 104
Madison WI 53719 USA

Phone: 608-274-2577
Fax: 608-278-1475
E-mail: thornton at tess-inc.com
Web: www.tess-inc.com




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