It's too early to tell, but Paul indeed may have won the prize:
a guided tour of the UCB Space Sciences Laboratory,
lunch (but not airfare) included.

-- David

Richard Haselgrove wrote:
> Well done Paul, I think you claim the prize:
> 
> http://boinc.berkeley.edu/trac/changeset/17860
> 
> ----- Original Message ----- 
> From: "Paul D. Buck" <[email protected]>
> To: "David Anderson" <[email protected]>
> Cc: <[email protected]>; "BOINC Developers Mailing List" 
> <[email protected]>
> Sent: Thursday, April 23, 2009 7:50 AM
> Subject: Re: [boinc_dev] [boinc_alpha] 6.6.20 and work scheduling]
> 
> 
>> On Apr 22, 2009, at 4:17 PM, David Anderson wrote:
>>
>>> "now" is a member of CLIENT_STATE.
>>> In member functions of CLIENT_STATE it's referred to as "now";
>>> elsewhere it's referred to as "gstate.now".
>>> There is no function now().
>>>
>>> Now that that's straightened out, maybe we can return to the issue
>>> of why preemptions happen too soon.
>> Sorry about this, can't stop thinking about it.
>>
>> I think we actually have two issues colliding that creates the one
>> symptom.
>>
>> The first is that all tasks are always considered preemptable and are
>> tagged as such on each cycle.
>>
>> The second is that the client assumes / calculates deadline problems
>> incorrectly and, in essence, panics about tasks missing deadlines and
>> schedules them to run when, in fact, they only need to be run on the
>> next available resource.
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> 
> 
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