Significance of control_timestep magnitudes

Dear All,

I have encountered strange (in my opinion) behaviour of Tochnog
depending on the magnitude of the arguments to control_timestep.

In my data file (in the attachment) I have a line:
   control_timestep             120  1.e-1 1.e-1 

but if I change it to 
   control_timestep             120  1.e-2 1.e-2 

I got different results. What is more with 
   control_timestep             120  1.e-3 1.e-3 
the results are again different.

(The results for the last two cases seems to be a rubbish
of some sort).

The data describe an elastic bar in tension so there should 
be no surprise.

I would be very grateful if someone sheds some light on the 
issues before I start digging in the code what is going on.

Thank you for your support,

Regards
Roman

-- 
Roman Putanowicz, PhD  < [email protected]  >
Institute for Computational Civil Engng (L-5)
Dept. of Civil Engng, Cracow Univ. of Technology
www.l5.pk.edu.pl, tel. +48 12 628 2569, fax 2034

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