We are new here

Bass
Bass
Joined: 7 Apr 07
Posts: 1
Credit: 54,400
RAC: 0
Topic 192581

What are credits for? We are new and psyched to be participating but a little numb Thanks

Mike Hewson
Mike Hewson
Moderator
Joined: 1 Dec 05
Posts: 6,211
Credit: 136,087,025
RAC: 52,969

We are new here

Quote:
What are credits for? We are new and psyched to be participating but a little numb Thanks


Generically credits are for measuring your progress, and like any measurement may be suborned to other uses like: bragging etc. :-)

No one I'm aware has yet been able to link them to the general economy though, and exchange them for a hamburger say, but we live in hope ..... :-)

Thanks for coming on board either way!

Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter. Blaise Pascal

DanNeely
DanNeely
Joined: 4 Sep 05
Posts: 1,353
Credit: 2,205,440,151
RAC: 2,615,605

bragging rights :)

bragging rights :)

Dex
Dex
Joined: 21 Sep 06
Posts: 646
Credit: 4,381
RAC: 0

Well, I think the last 2

Well, I think the last 2 posts, covered the credits information.. So, I will just say WELCOME to E@H!

d3xt3r.net

Annika
Annika
Joined: 8 Aug 06
Posts: 720
Credit: 494,410
RAC: 0

Yes, welcome to Einstein :-)

Yes, welcome to Einstein :-) and have fun with your credits, whatever you use them for ;-) but if you find a way to get nice hardware in exchange for them, let me know...

Nothing But Idle Time
Nothing But Idl...
Joined: 24 Aug 05
Posts: 158
Credit: 289,204
RAC: 0

RE: bragging rights

Message 62010 in response to message 62007

Quote:
bragging rights :)


My 2 cents worth: Don't try to compare credits from one project to another. 100 credits at Einstein is not equivalent to 100 credits at Rosetta (for example). The amount of cpu effort you contribute to get 100 einstein credits is not the same as the amount of cpu effort you will contribute to get 100 Rosetta credits (or other projects).
Using my own stats, for me to achieve a Recent Average Credit (RAC) that is identical at Einstein and Rosetta (say, 185 and 185) I have to set my resource shares at 66% for Rosetta and 34% Einstein. So, I dedicate the same amount of cpu time to get 1.6 credits at Einstein as I do to get 1 credit at Rosetta.
If I run my resource shares at 50/50 -- a combination that you might expect to give equal credits at each project -- I in fact get a RAC of 240 at Einstein and only 150 at Rosetta. These differences are due to the amount of credits given at each project and the efficiency of your machine doing work the projects have to offer.
So if you want to brag that you have more credits than someone else, make sure that you compare your credit at a given project to other individuals contributing to the same project. If I ran Einstein only I would have far more total credits than if I ran Rosetta only.

Odysseus
Odysseus
Joined: 17 Dec 05
Posts: 372
Credit: 13,228,670
RAC: 10,442

RE: My 2 cents worth: Don't

Message 62011 in response to message 62010

Quote:
My 2 cents worth: Don't try to compare credits from one project to another. 100 credits at Einstein is not equivalent to 100 credits at Rosetta (for example). The amount of cpu effort you contribute to get 100 einstein credits is not the same as the amount of cpu effort you will contribute to get 100 Rosetta credits (or other projects).


True enough, but it’s also worth noting that there is some effort being made to make different projects as similar as possible in terms of credit earned per unit CPU time. I’ve been running both SETI@home and E@h with equal shares on my partner’s iMac (2.16-GHz C2D) for about a month now, and its RAC scores on the two projects differ by only about 5%. (I expect that to change in short order, though: I’ll be installing an optimized S@h app on it this weekend, which should at least double its production for that project.)

OTOH my Mac G5 is producing about the same for E@h (using the PPC v4.27 app) and S@h Beta, but the latter’s resource share on this host is twice as high, implying that with equal shares S@h Beta would be only half as productive of credit as Einstein.

Annika
Annika
Joined: 8 Aug 06
Posts: 720
Credit: 494,410
RAC: 0

Strange, I used to think SETI

Strange, I used to think SETI runs especially well on Intel Macs (or Intels with a large cache in general) so I would have expected the box to be more productive over there... or has Einstein changed to an Intel project? ;-)

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