...sorry not sure what RAC is? its weird, my tablet is working fine getting tasks and completing them, id think my Macbook would take more of the brunt...not sure how that works exactly...
It depends on what your settings are for the other projects you are also running on the MacBook, if everything is the same then you will get tasks from every project that has tasks available and Einstein could be on the back burner for a bit. As the RAC drops here you will eventually get Einstein tasks again but if you are running Einstein tasks that give alot of credits, which is part of what RAC is based upon, it could be even longer before you get them again if the other projects you are running give out significantly fewer credits.
One way to ensure you only get Einstein tasks is to set all your other projects to No New Tasks.
its not letting me register on that site...just sits there doing nothing...
RAC means recent average credit and it's a VERY complicated formula that give more weight to todays credits than yesterdays and the day before that and the day before that all the way back to 28 days in a row. You can think of it like a speedometer if it helps showing what you are doing today as opposed to yesterday but that's an oversimplification of the formula. RAC grows pretty quickly nd then drops off pretty slowly, so if you are crunching LHC today and then tomorrow start crunching with the same cpu's on Einstein LHC will show almost as many, or maybe even more RAC due to you waiting on the wingman here at Einstein, but over time your Einstein RAC will be higher than LHC's.
Here's the forumula from the page George linked too:
Computing the current value of Recent Average Credit
BOINC updates 'recent average credit' (RAC) only when new credit is granted. Interfaces that export RAC also export that time at which it was last updated. To obtain the current value of RAC, you must 'decay' it based on the time that has elapsed since it was updated:
BOINC updates 'recent average credit' (RAC) only when new credit is granted. Interfaces that export RAC also export that time at which it was last updated. To obtain the current value of RAC, you must 'decay' it based on the time that has elapsed since it was updated:
I see the natural logarithm of 2 in there ( ~ 0.69, yielding a half-life as opposed to some other fraction ) and also the number of seconds in a week ( 24 * 60 * 60 * 7 = 86400*7 ), plus that exponential with the negative argument ie. decay. So the time unit here is evidently seconds with a value half-life of one week. For example after one week ( $diff = 86400*7 ) :
$weight = exp(- 86400*7* $M_LN2/86400*7 ) = exp (-$M_LN2) = 1/exp($M_LN2) = 1/2 so that checks out OK
{ NB exp(log(x)) = x }
What is the language used here? Is it PHP ? I don't really don't recognise the format, $ obviously signals an identifier name.
Cheers, Mike.
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
yeah...so my tablet is dangerously low on space as its telling me, but i cant for the life of me delete any other app, or anything, how can i clear the cache or something whatever to do with BOINC, to get my space back to run projects?
i do nothing with that tablet but run Einstein@home, but now its all filled up and cant accept new tasks
do i need to just fully reset that computer?
my macbook air is still working great....so i dunno
yeah...so my tablet is dangerously low on space as its telling me, but i cant for the life of me delete any other app, or anything, how can i clear the cache or something whatever to do with BOINC, to get my space back to run projects?
i do nothing with that tablet but run Einstein@home, but now its all filled up and cant accept new tasks
do i need to just fully reset that computer?
my macbook air is still working great....so i dunno
What are your cache settings? If your only running E@H, and not trying to run EVERYTHING within the Einstein website, I would think that if you only ran one or two of the many projects of Einstein at a cache level of 0.1 for each of "Store at least" and "Store up to an additional" under Network Usage on the Computing page under preferences, that that should help your problem.
Be sure to hit "SAVE CHANGES" at the bottom of the page after doing the above.
I personally am running four individual projects with nearly the same preference settings and I have nearly 5 GB of space consumed by BOINC. To me, it is not a major issue as I'm using a desktop computer and have several TB of storage space.
Alex Bollo wrote: ...sorry
)
RAC = Recent Average Credit. It's a slightly complicated formula listed here at the bottom of the page:
https://boinc.berkeley.edu/trac/wiki/CreditStats
Proud member of the Old Farts Association
Alex Bollo wrote: ...sorry
)
It depends on what your settings are for the other projects you are also running on the MacBook, if everything is the same then you will get tasks from every project that has tasks available and Einstein could be on the back burner for a bit. As the RAC drops here you will eventually get Einstein tasks again but if you are running Einstein tasks that give alot of credits, which is part of what RAC is based upon, it could be even longer before you get them again if the other projects you are running give out significantly fewer credits.
One way to ensure you only get Einstein tasks is to set all your other projects to No New Tasks.
its not letting me register
)
its not letting me register on that site...just sits there doing nothing...
..yeah... maybe ill try that
)
..yeah... maybe ill try that out...ill set the LHC@home to no new tasks and see if Einstein@home pops up again..
thanks..
Alex Bollo wrote:its not
)
RAC means recent average credit and it's a VERY complicated formula that give more weight to todays credits than yesterdays and the day before that and the day before that all the way back to 28 days in a row. You can think of it like a speedometer if it helps showing what you are doing today as opposed to yesterday but that's an oversimplification of the formula. RAC grows pretty quickly nd then drops off pretty slowly, so if you are crunching LHC today and then tomorrow start crunching with the same cpu's on Einstein LHC will show almost as many, or maybe even more RAC due to you waiting on the wingman here at Einstein, but over time your Einstein RAC will be higher than LHC's.
Here's the forumula from the page George linked too:
Computing the current value of Recent Average Credit
BOINC updates 'recent average credit' (RAC) only when new credit is granted. Interfaces that export RAC also export that time at which it was last updated. To obtain the current value of RAC, you must 'decay' it based on the time that has elapsed since it was updated:
function decay_average($avg, $avg_time, $now = 0) { $M_LN2 = 0.693147180559945309417; $credit_half_life = 86400 * 7; if ($now == 0) { $now = time(); } $diff = $now - $avg_time; $weight = exp(-$diff * $M_LN2/$credit_half_life); $avg *= $weight; return $avg; }i started receiving new tasks
)
i started receiving new tasks for this computer this morning, so should be OK...
...thanks
Alex Bollo wrote: i started
)
That's great!!
mikey wrote:BOINC updates
)
I see the natural logarithm of 2 in there ( ~ 0.69, yielding a half-life as opposed to some other fraction ) and also the number of seconds in a week ( 24 * 60 * 60 * 7 = 86400*7 ), plus that exponential with the negative argument ie. decay. So the time unit here is evidently seconds with a value half-life of one week. For example after one week ( $diff = 86400*7 ) :
$weight = exp(- 86400*7* $M_LN2/86400*7 ) = exp (-$M_LN2) = 1/exp($M_LN2) = 1/2 so that checks out OK
{ NB exp(log(x)) = x }
What is the language used here? Is it PHP ? I don't really don't recognise the format, $ obviously signals an identifier name.
Cheers, Mike.
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
yeah...so my tablet is
)
yeah...so my tablet is dangerously low on space as its telling me, but i cant for the life of me delete any other app, or anything, how can i clear the cache or something whatever to do with BOINC, to get my space back to run projects?
i do nothing with that tablet but run Einstein@home, but now its all filled up and cant accept new tasks
do i need to just fully reset that computer?
my macbook air is still working great....so i dunno
Alex Bollo wrote:
)
What are your cache settings? If your only running E@H, and not trying to run EVERYTHING within the Einstein website, I would think that if you only ran one or two of the many projects of Einstein at a cache level of 0.1 for each of "Store at least" and "Store up to an additional" under Network Usage on the Computing page under preferences, that that should help your problem.
Be sure to hit "SAVE CHANGES" at the bottom of the page after doing the above.
I personally am running four individual projects with nearly the same preference settings and I have nearly 5 GB of space consumed by BOINC. To me, it is not a major issue as I'm using a desktop computer and have several TB of storage space.
Proud member of the Old Farts Association