[Carpet] checkpoint all timelevels ?

[Thomas Radke]

Ian Hawke wrote:
> On Mon, 2006-09-11 at 16:34 +0200, Thomas Radke wrote:
> 
> 
>>for groups with multiple timelevels, PUGH checkpoints all but the last 
>>(oldest) one because during the first timelevel rotation it is discarded 
>>anyway. Carpet currently checkpoints all timelevels. Why is this necessary ?
> 
> 
> Restriction may use all active timelevels (up to 3). There is no good
> algorithm for generating past timelevels (i.e., no way of guaranteeing
> identical results) other than doing the evolution. So they all need to
> be stored.

But I thought that restriction isn't needed when recovering initial data 
? At least it's not there in our nice Carpet scheduling picture 
http://www.carpetcode.org/doc/scheduling.pdf (page 9).

-- 
Cheers, Thomas.