Except for devices that are offline most of the time this would be true. I
believe that BOINC should fill from backup projects only till
work_buf_min_queue is satisfied ("Connect Every X") as this is what the
user has specified as how long the computer may go between connections.
The backup project should NOT fill any of the "extra days" other than
because tasks are discrete and will slightly overfill the
work_buf_min_queue.
jm7
David Anderson
<[email protected]
ey.edu> To
Sent by: [email protected]
<boinc_dev-bounce cc
[email protected]
u> Subject
Re: [boinc_dev] Backup Projects
Work Fetch
08/05/2010 04:40
PM
I think the right thing to do is to fetch only
enough jobs to fill up the idle devices,
i.e. don't queue extra jobs for backup projects.
I'll check this in.
-- David
On 05-Aug-2010 12:57 PM, Jamie Tiller wrote:
>
> Hi,
>
> I may have missed this so forgive me if this has been asked and answered.
>
> I've been having a play with the "Backup Projects" options and think that
an
> extra option should be included in Boinc to utilise this functionality a
> little better. Currently, if I'm correct, if no work is available, or the
> sites are down for any attached projects that have>=1% resource share
then
> Boinc will look to the projects that have been set to "Backup
Projects" (0%
> resource share), and request work from those projects. In itself, this is
a
> good way of keeping the computers resources busy. The problem, I think
comes
> from the fact that the "Backup Project" logic is only tied into which
project
> to request work from, and not how much work to request. With no manual
> intervention for the user, this could lead to the cache being filled with
> "Backup Project" work. However, if the users main projects start
generating
> work again, or come back online, this could stop those main projects from
> requesting work due to having a full cache of "Backup Projects"
workunits.
> One solution would be to default the work fetch request to only ask for a
> limited amount of work from the "Backup Projects" at a time, but this
could
> then lead to issues with users that have limited internet access or those
> that have "Set& Forget" systems. So, would it be possible to incorporate
> into the Boinc client an extra option that allows the users to set how
much
> work to request at a time from the "Backup Projects"? For example, my
system
> is set to "Always Connected" in the internet options, therefore with this
> option available, I would be able to set the work fetch requests from the
> "Backup Projects" for 1 second of work per idle resource which is the
same as
> when you first attach to a project This would eliminate the need for any
> micro-management of the projects when work is unavailable, but still let
the
> users main choice of projects receive work, and continue to be the main
> projects as soon as work is available from them again.
>
> Thanks Ghost
>
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