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Senilix
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Message 3531 - Posted: 11 Nov 2009, 2:39:30 UTC - in response to Message 3522.

I noticed that since some time today all of my work units are getting 800.01 credits - instead of a variable amount depending on the number of calculated steps.

Was the credit system of Collatz changed to a fixed one?


Hmmm, seems like there have only been 7 work units in a row which earned these 800.01 credits. The next WUs are awarded with the usual variable rate of something between 700 and 750 credits. A bit weird though ...

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Message 3534 - Posted: 11 Nov 2009, 6:01:19 UTC - in response to Message 3531.

I noticed that since some time today all of my work units are getting 800.01 credits - instead of a variable amount depending on the number of calculated steps.

Was the credit system of Collatz changed to a fixed one?


Hmmm, seems like there have only been 7 work units in a row which earned these 800.01 credits. The next WUs are awarded with the usual variable rate of something between 700 and 750 credits. A bit weird though ...


800.01 was set as the max allowed on the validator. I increased it so it shouldn't happen any more. Having a max keeps some random result which happened to return the same max steps but a screwed up total steps from claiming a few million credits. It also allows me to go back and check any WUs that claim exactly the max to see whether they need to be reissued due to possible faulty calculations by the first person to return the WU.

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Message 3556 - Posted: 11 Nov 2009, 15:11:34 UTC - in response to Message 3534.

Thank you very much for the prompt explanation.

Rene
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Message 3771 - Posted: 20 Nov 2009, 9:59:52 UTC

Well let's be honest... aren't we getting much to much credits here.

;-)
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Message 3772 - Posted: 20 Nov 2009, 10:12:00 UTC - in response to Message 3771.

Well let's be honest... aren't we getting much to much credits here.

;-)


If you want less Credit there's a whole Bunch of other Projects that will give it to you
...

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Message 3773 - Posted: 20 Nov 2009, 10:18:48 UTC - in response to Message 3772.

If you want less Credit there's a whole Bunch of other Projects that will give it to you
...


Yes I know... ;-)

I sounds strange someone complaining about getting to much, but I've been around for a while now and I have never seen such an amount of given credits.
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Message 3775 - Posted: 20 Nov 2009, 10:21:49 UTC - in response to Message 3773.
Last modified: 20 Nov 2009, 10:23:07 UTC

If you want less Credit there's a whole Bunch of other Projects that will give it to you
...


Yes I know... ;-)

I sounds strange someone complaining about getting to much, but I've been around for a while now and I have never seen such an amount of given credits.


Try Milkyway when they get back up, they give even more ... And it's not that Strange someone complaining about to much credit either. We get the Credit Cops in here every once in awhile complaining about it ...

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Message 3777 - Posted: 20 Nov 2009, 10:32:39 UTC - in response to Message 3775.

We get the Credit Cops in here every once in awhile complaining about it ...


Let's hope they don't eat to much donuts while they are here... ;-)

Again I'm just observing.
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Message 3779 - Posted: 20 Nov 2009, 13:05:44 UTC

Why do you think its too much? I guess you are refering to CUDA/CAL credits. Ever thought about, how fast the WUs are processed? I think the credits are right on the money.

redgoldendragon
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Message 3781 - Posted: 21 Nov 2009, 18:05:35 UTC

Hey hello to all you out there. One thing to credits here in Collatz.

You´ve got to admit it´s way too much compared to other projects.
Here my two GTX 280 could gain about 2800 credits for an hour of work.
In Milkyway they get get around a 1000 and in SETI it´s (if your lucky) 400 to 500.

Yes, I am taking part here, and the reason is (as I think from most of you), not to fall behind in credit count. I know, this is one of the few (2 I know of) Boinc projects for you ATI guys (and girls) out there, for which I am sad, because the power of your cards could help other scientifically significant projects a lot. I don´t want to tell you for wich projects to crunch, thats totally up to you, but I think the credits should be adjusted to match.
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Message 3782 - Posted: 21 Nov 2009, 18:23:24 UTC

Sorry, miscalculated. It`s about 2000 credits per hour in Milkyway.

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Message 3783 - Posted: 21 Nov 2009, 18:37:37 UTC - in response to Message 3782.

Sorry, miscalculated. It`s about 2000 credits per hour in Milkyway.


What is your problem, be happy to have something to crunch.
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redgoldendragon
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Message 3784 - Posted: 21 Nov 2009, 18:53:52 UTC - in response to Message 3783.

Just one problem : the amount of credits given here in comparison to other projects per fpu time. I think the work done in different projects should be comparable by the amount of taken credits.
Not to misunderstand I would also give cpu/fpu time here for fewer credits, I think the project is worth supporting because of the effort made by almost a "one man show".

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Message 3785 - Posted: 21 Nov 2009, 19:09:19 UTC - in response to Message 3781.
Last modified: 21 Nov 2009, 19:11:18 UTC

Hey hello to all you out there. One thing to credits here in Collatz.
You´ve got to admit it´s way too much compared to other projects.


No we're not getting to much credits here.


Here my two GTX 280 could gain about 2800 credits for an hour of work.
In Milkyway they get get around a 1000 and in SETI it´s (if your lucky) 400 to 500.


Maybe you should start asking yourself how efficent those gpu apps over at S@H and MW really are compared to their CPU counterparts and after that, you can take a look at what percentage of the peak performance of a gpu get's utilized on your other projects... (over at seti it's less than 20% peak... here we are a bit over 80%).


.. but I think the credits should be adjusted to match.


Again, credits do match 'work done'... it's just that you compare poorly performing gpu/cpu apps from other projects to collatz...

So go complain over at your other projects and ask why their gpu apps perform that bad compared to their cpu apps.
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Message 3786 - Posted: 21 Nov 2009, 19:24:23 UTC - in response to Message 3785.

So go complain over at your other projects and ask why their gpu apps perform that bad compared to their cpu apps.

I am not complaining. It´s just a push to think about.

Maybe you should start asking yourself how efficent those gpu apps over at S@H and MW really are copared to their CPU counterparts and after that, you can take at what percentage of the peak performance of a gpu get's utilized on your other projects... (over at seti it's less than 20% peak... here we are a bit over 80%).


You are right with SETI. But with Milkyway I doubt that, also my expertise is in other fields than programming.

No we're not getting to much credits here.


And yes, WE are. Just look over at boincstats for the RAC

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Message 3788 - Posted: 21 Nov 2009, 19:33:37 UTC - in response to Message 3786.


You are right with SETI. But with Milkyway I doubt that, also my expertise is in other fields than programming.


You do know that MW uses double precision, right ? And you do know that ATI gpus have a way higher peak performance on DP FP math than NVIDIA gpus ?


And yes, WE are. Just look over at boincstats for the RAC


No WE're not. What should i see when i look at boincstats ?



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Message 3789 - Posted: 21 Nov 2009, 19:48:50 UTC - in response to Message 3788.

You do know that MW uses double precision, right ? And you do know that ATI gpus have a way higher peak performance on DP FP math than NVIDIA gpus ?

I know that. And I am not getting in the old Nvidia - ATI haggle, because I am too old for that, in fact Much older than this war :).
If you read my first post carefully I am not talking about different FPU`s, I know that they have different capabilities and that the apps are differently programmed / optimized. I am just talking of the credit output of the same card.

And well, does Collatz use Double Precision?



What should i see when i look at boincstats ?


Just look how an amazing 7000 Computers produce the same amout of RAC than almost all other projects combined....

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Message 3791 - Posted: 21 Nov 2009, 19:52:41 UTC - in response to Message 3781.

Hey hello to all you out there. One thing to credits here in Collatz.

You´ve got to admit it´s way too much compared to other projects.
Here my two GTX 280 could gain about 2800 credits for an hour of work.
In Milkyway they get get around a 1000 and in SETI it´s (if your lucky) 400 to 500.

Yes, I am taking part here, and the reason is (as I think from most of you), not to fall behind in credit count. I know, this is one of the few (2 I know of) Boinc projects for you ATI guys (and girls) out there, for which I am sad, because the power of your cards could help other scientifically significant projects a lot. I don´t want to tell you for wich projects to crunch, thats totally up to you, but I think the credits should be adjusted to match.


Your Behind in the Credit Count already ... :P ... And if you don't want to tell us which Projects to run then why tell us. If your so Sad what are you doing here then, you should be running the Projects your so sad for ...

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Message 3792 - Posted: 21 Nov 2009, 19:59:01 UTC

Hello Crunch3r and all,

I think redgoldendragon is refering to the project RAC at this moment.
Yesterday Collatz was no.1 with Seti on no.2
Here at Collatz there are far less hosts and somehow we (yes I'm including myself) managed to overrise all projects.

Yes I'm aware of the way CAL does his work here, the application uses 80%+ of the GPU and it's an application well made. I was also surprised about the credits given, I have a HD3450 and to be honest this GPU is not a speed champion.

Again like you and others have stated, CAL and BOINC are a powerfull match, but keeping things in sync with other projects should be something worth thinking about.

I think we are all aware how fragile the BOINC community somethimes is and flame wars usualy need a small spark.

Just my thougths... I'm not blaming anyone or pointing a finger.

;-)
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Message 3793 - Posted: 21 Nov 2009, 20:01:09 UTC - in response to Message 3773.

If you want less Credit there's a whole Bunch of other Projects that will give it to you
...


Yes I know... ;-)

I sounds strange someone complaining about getting to much, but I've been around for a while now and I have never seen such an amount of given credits.



Yes I can see you have been around for awhile... are you counting in dog years ??

Go crunch uFluids or Malaria.

Forgive me if this has already been brought up, but credits here are fixed and are determined by a bench mark low end machine.. so if you like low credits. Just run CPU on WIN-32 here and you should be just happy about what you get.

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