What do credits represent?

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Kashii

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Joined: 9 Apr 06
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Credit: 145
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Message 13996 - Posted: 18 Apr 2006, 1:14:06 UTC

What are the credits measuring? Why are they being tracked?
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Profile Feet1st
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Credit: 4,690,520
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Message 14140 - Posted: 19 Apr 2006, 21:31:23 UTC

"credits" are just a measure of how much computing you have done for the project. The project keeps track of them as you report back your finished work. They are used mostly by teams to compare which team can crunch the most. For now, don't worry about them. Credits is sometimes complicated :)

As you post on the message boards, it shows your total credits and your RAC (Recent Average Credit). RAC is a measure of how quickly you are earning credits. It's sort of a moving average of credits earned. You can use that (and the date they joined the project) to give you a feeling for how long the person has been crunching Rosetta.
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Mark Harviston

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Message 18900 - Posted: 18 Jun 2006, 20:06:27 UTC - in response to Message 14140.  

Credits is sometimes complicated :)

Ok. I get that, I have been searching ror an answer to Kashii's question though:
What are the credits measuring?

I want to convert Credits approximately at least into CPU Time.
Is this possible?
if not, is it possible at all to get a total CPU time for an account or a computer?
I've looked I can't seem to find it.
Are credits based off any sort of "real" measurement.
Thank you.
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Profile Christoph Jansen
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Message 18902 - Posted: 18 Jun 2006, 20:26:47 UTC - in response to Message 18900.  
Last modified: 18 Jun 2006, 20:46:07 UTC

I want to convert Credits approximately at least into CPU Time.
Is this possible?


Yes, it is possible. If you left the Target CPU Time in your Rosetta Preferences unchanged, each work unit runs approximately 3 hours, which is 10800 sec.

You just search for a unit that is very close to that (e.g. 10803.23 sec) and note its credit. If you divide it by 3 you get your credit per hour (as long as you do not change the configuration of your PC). If you now divide your current credit by that number it always gets you your current CPU time.

Are credits based off any sort of "real" measurement.


On Rosettas home page you find these numbers:

Credits last 24h : 3,853,310

TeraFLOPS estimate: 38.533

As you see, 1 credit is 1/100th of one day of computing time on a PC with a speed of 1GFlops

Here is more of the exciting and time consuming world of getting to understand credits ;-)
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Profile Feet1st
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Message 18992 - Posted: 20 Jun 2006, 16:59:58 UTC - in response to Message 18900.  

...is it possible at all to get a total CPU time for an account or a computer?


Yes, in BOINC Manager, go to the Statistics tab. Click the "show host total" or "show user total" button at the left.

Add this signature to your EMail:
Running Microsoft's "System Idle Process" will never help cure cancer, AIDS nor Alzheimer's. But running Rosetta@home just might!
https://boinc.bakerlab.org/rosetta/
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Questions and Answers : Getting started : What do credits represent?



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