[Nauty] [genrang] Regular graph

[Sébastien Sorlin]

Hello,

I want use nauty's tools to generate regular graph. Genrang seems be able to 
generate it with the "-r#" option where # specifies the degree.

I have two questions :
1) What do you mean when you say that the graph are regular? How genrang 
produces this kind of graph?
2) The degree must be between 0 and 8. I never can use 8, genrang seems to be 
too long to produce this kind of graph. Is it normal? (0 to 7 is good and 
fast).

If somebody can help me...

Thanks,

-- 
Sébastien Sorlin