[RC5] Checkpoint Interval?

Brad T. bradtod at rocketmail.com
Wed Feb 13 17:59:54 EST 2002


you have nothing to worry about, the buff-out file will be updated when
the block is done so its safe.

On a side note, is there any chips faster then the G4 at 1ghz for doing
rc5? I don't beleive there is but if I'm wrong I would like to know.

--- John Caldwell <johnkc at apple.com> wrote:
> What criteria determines when the checkpoint file is updated?  Is it
> time 
> based, progress based, or a mix of both?  I recall seeing this
> discussed 
> or documented long ago, but a quick search of the docs and FAQ didn't
> 
> produce the answer.
> 
> This is probably less relevant for OGR, but I'm curious about what 
> happens with small RC5 blocks.  A 1GHz G4 completes a 1*2^28 block in
> 26 
> seconds.  (Yes, I requested larger blocks, but those are what the
> proxy 
> had available.)  Is the checkpoint file getting updated every second
> or 
> two, or is the intermediate work never written out because the work
> unit 
> is completed before the update interval is reached?
> 
> -jkc
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=====
Take care,
Check out my site @
http://members.tripod.com/~Rambo_21/

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