🚀 go-pugleaf

Hi all,

I am right now trying to simulate my MAGIC layouts using
Berkeley spice.  I am using 2g6, since I don't have their 
recent version at my place.  

The problem is that even for small cells with hardly 16 
transistors, I sometimes get the following error :

"
1*ERROR*:  INTERNAL TIMESTEP TOO SMALL IN TRANSIENT ANALYSIS
0          TIME =  2.00961D-07;  DELTA =  2.71138D-17;  NUMNIT =   6710
"

I get this error quite at random and am not able to make out what is
it that I am doing wrong.  I am doing a transient analysis and tried 
tweaking all the relevant options (ITL3, ITL4, ITL5) in the .OPTIONS
card.  But the error won't go !

I cannot also simulate rapidly changing signals (50ns clocks), since I
get this error.

I would be grateful if anyone could tell me how I can get over this problem.

Also I am working with an old version of the spice users guide (10/1/83).
Does anyone know where I can ftp a more detailed guide with a description
of error messages that I get while simulating my circuit.

Thanks !

-Yegna.