Re: [SI-LIST] : **error**: internal timestep too small

About this list Date view Thread view Subject view Author view

From: Dmitri Kuznetsov (vdm@iname.com)
Date: Wed Jan 19 2000 - 15:59:34 PST


Interestingly, to get rid of the "internal timestep too small" error,
one needs to make the time step SMALLER.

The error is caused by nonconvergence due to previous time steps being
too large. SPICE tries to "backtrack" and redo the current time
iteration with subsequently smaller time steps, and when it fails, the
above error is generated.

I am sure you knew about that. But many novice SPICE users try to
increase the time step when they see the "timestep too small" error,
which makes the problem worse.

Dmitri Kuznetsov

 
Jim Freeman wrote:
>
> Haven't we all
>
> Jim Freeman
>
> "Mellitz, Richard" wrote:
>
> > I've got one thing to say about spice.
> >
> > I've grown to hate the following line:
> >
> > **error**: internal timestep too small in transient analysis
> >
> > Rich Mellitz
> > Intel
> >

**** To unsubscribe from si-list: send e-mail to majordomo@silab.eng.sun.com. In the BODY of message put: UNSUBSCRIBE si-list, for more help, put HELP.
si-list archives are accessible at http://www.qsl.net/wb6tpu
****


About this list Date view Thread view Subject view Author view

This archive was generated by hypermail 2b29 : Thu Apr 20 2000 - 11:34:44 PDT