Message boards :
Number crunching :
How I stopped worrying, and learned to love the saw tooth pattern....
Message board moderation
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Spiked Punch Send message Joined: 8 Dec 01 Posts: 14 Credit: 48,927,213 RAC: 0 |
Dr. Strangelove reference for the win. Any way, for the last few months prior to the colo move, I have noticed that my RAC was doing the usual saw tooth pattern, and then right before the big move jumped suddenly from 29k to 32k. This made little sense to me, but I did not want to knock it at the time. But now it seems to be going back on the up again, so I started to wonder... so how is the RAC is calculated? And since my search-fu skills seem weak, I might as well ask out loud if this assumption is correct: The RAC appears to be based upon both the amount that your machines can process, AND how much your wingmen and the servers can go through on a regular basis. So how far off am I? |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
RAC(Recent Average Credit) is calculated very simply. Credit on the other hand uses a random number generator. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
Ianab Send message Joined: 11 Jun 08 Posts: 732 Credit: 20,635,586 RAC: 5 |
Well RAC is calculated on the work that is Validated, not the work as it's returned. So if you are by chance matched up with Wingman that goes goes AWOL with a heap of workunits, and you need to wait 6 weeks for them to be reissued, your RAC takes a dip, through no fault of yours. But as a bonus, when those relayed units do eventually get validated, you get a boost. SO you can get the situation where you turn a machine off, and the RAC goes up. (for a while anyway) Maybe we need to implement an ARAC (Average Recent Average Credit)? :D Ian |
Spiked Punch Send message Joined: 8 Dec 01 Posts: 14 Credit: 48,927,213 RAC: 0 |
I guess it beats drawing a circle on the ground and throwing in chicken bones all day. |
Spiked Punch Send message Joined: 8 Dec 01 Posts: 14 Credit: 48,927,213 RAC: 0 |
Well RAC is calculated on the work that is Validated, not the work as it's returned. I am all game for that! -brought to you by the Department of Redundancy Department |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
I actually do average my RAC on my machines by pulling the data from statistics_setiathome.berkeley.edu.xml. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
David S Send message Joined: 4 Oct 99 Posts: 18352 Credit: 27,761,924 RAC: 12 |
RAC(Recent Average Credit) is calculated very simply. Credit on the other hand uses a random number generator. http://www.youtube.com/watch?feature=player_detailpage&v=KSXJNivi9KA#t=2008s (I was looking for a clip of Bugs or some other character flipping his finger over his lips in confusion, but I didn't have all day to look.) David Sitting on my butt while others boldly go, Waiting for a message from a small furry creature from Alpha Centauri. |
WezH Send message Joined: 19 Aug 99 Posts: 576 Credit: 67,033,957 RAC: 95 |
I actually do average my RAC on my machines by pulling the data from statistics_setiathome.berkeley.edu.xml. Yay, how I can do that? "Please keep Your signature under four lines so Internet traffic doesn't go up too much" - In 1992 when I had my first e-mail address - |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
I actually do average my RAC on my machines by pulling the data from statistics_setiathome.berkeley.edu.xml. I read the statistics_setiathome.berkeley.edu.xml file and pick out the values for <host_expavg_credit></host_expavg_credit> & I count the number of records to get the number of days. There are probably better ways to do it, but I am just doing it with dos .bat scripting. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
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