Message boards :
Number crunching :
Very small amounts of credit for GPU
Message board moderation
Author | Message |
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Peter Hucker Send message Joined: 3 Apr 99 Posts: 39 Credit: 7,555,481 RAC: 0 |
I run my GPU on POEM, Einstein, and SETI. It's crunching SETI 90% of the time, yet my SETI credit is WAY lower than the other two projects. What's going on? |
betreger Send message Joined: 29 Jun 99 Posts: 11361 Credit: 29,581,041 RAC: 66 |
It is called creditnew. |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
It is called creditnew. And also each project can set however much credit they want to for work. Some projects give large amounts of credit to attract more participants. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
Peter Hucker Send message Joined: 3 Apr 99 Posts: 39 Credit: 7,555,481 RAC: 0 |
If a project gives more credit, doesn't that mean it'll get less work assigned to it by the users, as they think they've done more? And isn't creditnew supposed to make everything equal? Or are some projects not using it yet? |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
If a project gives more credit, doesn't that mean it'll get less work assigned to it by the users, as they think they've done more? That was the original idea, but it was never implemented. Read Proposal: credit-driven scheduling for the reasons why, and what was done instead. And isn't creditnew supposed to make everything equal? Or are some projects not using it yet? To answer that would require a whole reference library, and you probably don't want to go there. But in short: "credit not very new at all" was 'designed' (some would quibble with my use of that word) and implemented in early 2010, in the very early days of GPU computing. It is essentially a CPU credit system, with a few bolt-ons for the few (then) projects that did a bit of GPU work on the side. It's almost impossible to run CreditNew for an exclusively GPU-based project. Mixed projects have mostly avoided it, too, but I suspect it's used by more CPU-only projects than its detractors would have you believe. Different projects have reacted to the situation in different ways. Einstein awards fixed credit per task, and makes an honest attempt to match the original definition of the 'cobblestone'. Others have succumbed to the siren voices on the message boards, who are quick to post about any perceived downward bias in credit, but remain silent about upward bias. That exerts psychological pressure on project scientists, 99% of whom aren't interested in credit and would much prefer that the whole issue went away. SETI is in a special position, because it co-habits in the same laboratory with the developers of BOINC, and shares some personnel. As such, it is the test-bed for new developments in BOINC. CreditNew has been under test here for six years now, but they obviously feel that if they test it for just a little bit longer, it'll come right in the end. |
rob smith Send message Joined: 7 Mar 03 Posts: 22202 Credit: 416,307,556 RAC: 380 |
it'll come right in the end. = "When the credit for every task is the same, zero" [/sarcasm mode] Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Mark Stevenson Send message Joined: 8 Sep 11 Posts: 1736 Credit: 174,899,165 RAC: 91 |
it'll come right in the end. That was happening when you where on holiday Rob 0.25 /0.36 credits per wu , but then again they didn't take long to complete ;-) Life is what you make of it :-) When i'm good i'm very good , but when i'm bad i'm shi#eloads better ;-) In't I " buttercups " p.m.s.l at authoritie !!;-) |
Peter Hucker Send message Joined: 3 Apr 99 Posts: 39 Credit: 7,555,481 RAC: 0 |
Well all you guys need to do is to talk to leaders in other projects, and decide that x points = y flops. For goodness sake it's not that hard.... |
Peter Hucker Send message Joined: 3 Apr 99 Posts: 39 Credit: 7,555,481 RAC: 0 |
This is the official definition of credit value: http://boinc.berkeley.edu/wiki/Computation_credit As far as I can see from a rough calculation from my own recent credit, SETI is not adhering to this, whereas Einstein is. Where do I post to request that SETI gets its act together? I run several projects and it's damn annoying not being able to compare how much work I'm doing for each. |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
This is the official definition of credit value: http://boinc.berkeley.edu/wiki/Computation_credit LOL.....good luck with that. This debate has been raging since CreditNew was unleashed. And that wicked genie ain't goin' back in the bottle. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Peter Hucker Send message Joined: 3 Apr 99 Posts: 39 Credit: 7,555,481 RAC: 0 |
I don't see why it should be a debate. The whole thing runs on BOINC, so what they say should be final. For now I've adjusted the weight of SETI so I get a tenth of the points that I do for Einstein, as they seem to be giving me about that. Same goes for the two projects that haven't produced GPU work for me. |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13736 Credit: 208,696,464 RAC: 304 |
This is the official definition of credit value: http://boinc.berkeley.edu/wiki/Computation_credit You could try the boinc_admin email address. Attn David Anderson. He developed BOINC, and he developed Credit New. BOINC email lists Grant Darwin NT |
Peter Hucker Send message Joined: 3 Apr 99 Posts: 39 Credit: 7,555,481 RAC: 0 |
So does the link I mentioned refer to creditnew? |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13736 Credit: 208,696,464 RAC: 304 |
So does the link I mentioned refer to creditnew? Don't think so. A couple more links on Credit, the bottom one specifically about Credit Screw. Sorry, Credit New. http://boinc.berkeley.edu/wiki/Computation_credit https://en.wikipedia.org/wiki/BOINC_Credit_System https://boinc.berkeley.edu/trac/wiki/CreditNew Grant Darwin NT |
Peter Hucker Send message Joined: 3 Apr 99 Posts: 39 Credit: 7,555,481 RAC: 0 |
Would be fine if everyone used the same system..... |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13736 Credit: 208,696,464 RAC: 304 |
Would be fine if everyone used the same system..... Yep. Grant Darwin NT |
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