[RC5] Suggestion

Mark Duell mduell52 at cox.net
Sun Dec 15 21:50:37 EST 2002

----- Original Message -----
From: "Michael Shannon" <MichaelS at towersoft.com.au>
To: <rc5 at lists.distributed.net>
Sent: Sunday, December 15, 2002 8:47 PM
Subject: RE: [RC5] Suggestion

> >
> > The only time this happens is when you go from 2.8 to 2.9 version
> > clients.  This will not happen again until the buffer format changes.
> > All other upgrades will simply restart the block that is currently
> > being worked on.
> >
> That's exactly what people are complaining about.  This is the scenario:
> - a slow machine is cracking a key
> - it spends a long time (many hours or even days) getting to a certain
> point (say 80% done)
> - the machine crashes, the client is restarted, etc.
> - when the client is fired up again, it chooses a different core and
> starts the same key from the start
> - all the work previously done is lost
> Now, if a person regularly shuts down at the end of the day and comes
> back online the next, there's a very real possibility that they'll be
> endlessly cracking *the same key*.  It's like trying to ride from one
> town to the next on an exercise cycle - you'll do a lot of work but you
> won't get anywhere.

1) New client versions don't arrive daily.
2) Couldn't you use the checkpoint file feature to solve the the problem you

Mark Duell

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