Credit / hour : not fair !

Annika
Annika
Joined: 8 Aug 06
Posts: 720
Credit: 494410
RAC: 0

I think they also like good

I think they also like good graphics cards... aren't CPDN and SAP done with graphical models? I thought so, which is the reason I never participated...

Scott Brown
Scott Brown
Joined: 9 Feb 05
Posts: 38
Credit: 215235
RAC: 0

RE: @Scott Brown, A

Message 44232 in response to message 44230

Quote:

@Scott Brown,
A standard machine would be nice but as you can see with Tony's results and my reply different machine perform differently on different projects. The celery and AMD mentioned were both primarily Einstein crunchers as that was were they performed the most science. Seti likes Intels with as large an L2 cache as it can get. Not too sure there is much difference on most of the other projects although I get the impression CPND, and maybe the other climate projects, like lots of memory and frequent back-ups.

Andy

I would agree with pretty much everything that you have said. However, as I noted, one can set any machine as the standard (it is completely arbitrary and could even be an "averaged" machine that combines various features--e.g., cpu, memory, OS, etc.). Because different machines perform differently on different projects does not preclude this possibility. I would also add that Tony's nicely done cross-project figures, in addition to hardware performance differences, also incorporate fundamental differences in how credit is claimed and granted (i.e., credit by benchmark, client FLOPS, server FLOPS, etc. as well as structural differences such as redundancy). Thus, it is not possible to determine what factors cause such variability (though it is probably reasonable to assume that all of the above matter in varying degrees by project).

Alinator
Alinator
Joined: 8 May 05
Posts: 927
Credit: 9352143
RAC: 0

RE: My latest update of

Message 44233 in response to message 44228

Quote:

My latest update of different projects as they pertain to cross project parity can be found here. Note: the einstein data represented was collected between Jul 25 and Aug 10(the old S5 sytem). I've been shuffling projects to collect data and have put einstein back into the mix this morning so I can see where the new system is at.
Note: all data is from standard/official project software.

And Yes, Eric K from seti has a copy of this. Others are also collecting data on this issue.

Nice work there Tony.

FWIW, this dovetails with my results nicely, the exception being I'm not seeing the difference you have between SAH and EAH due to running the optimized SAH apps. With those I have virtual credit rate parity between the two projects.

However, I think this shows the EAH team has worked really hard to make the best performing EAH apps automatically available to everyone (more so than SAH does at this point, as evidenced by the performance gain of Simon's and Crunch3r's apps).

I sure Bernd and Dr. Allen will take this into account before they make any decision to adjust credit again.

Alinator

Astro
Astro
Joined: 18 Jan 05
Posts: 257
Credit: 1000560
RAC: 0

Interesting. I have just ONE

Interesting. I have just ONE result in on my AMD64 3700, it's "benchmark calculated" credit/hour (as seen below) is 14.14 credit/hour, with app 4.02 it averaged 21.86/hour, but with 4.24 it got a whopping 33.52 credits/hour.

On my AMD64 Mobile 3700, the "Benchmark calculated" credit/hour (as seen below) is 13.33 credit/hour, with 4.02 it averaged 20.83 credits/hour, but with 4.24 it averaged (3 results so far) 21.74.

did the formula get boosted, reduced, or hasn't it happened yet? I haven't been following this board for weeks?

DanNeely
DanNeely
Joined: 4 Sep 05
Posts: 1364
Credit: 3562358667
RAC: 0

Credit was dropped by ~17%

Credit was dropped by ~17% when 4.24 (and equiv *nix apps) were released, and then again by the same amount a few days later once it was clear the first drop was too small. The net effect of the drops was to make credit/hour roughly the same for 4.02 and 4.24.

Astro
Astro
Joined: 18 Jan 05
Posts: 257
Credit: 1000560
RAC: 0

RE: Credit was dropped by

Message 44236 in response to message 44235

Quote:
Credit was dropped by ~17% when 4.24 (and equiv *nix apps) were released, and then again by the same amount a few days later once it was clear the first drop was too small. The net effect of the drops was to make credit/hour roughly the same for 4.02 and 4.24.


thanks, I'll let her roll, and put a few under the belt.

Richard Haselgrove
Richard Haselgrove
Joined: 10 Dec 05
Posts: 2143
Credit: 2961559259
RAC: 691170

RE: Interesting. I have

Message 44237 in response to message 44234

Quote:

Interesting. I have just ONE result in on my AMD64 3700, it's "benchmark calculated" credit/hour (as seen below) is 14.14 credit/hour, with app 4.02 it averaged 21.86/hour, but with 4.24 it got a whopping 33.52 credits/hour.

On my AMD64 Mobile 3700, the "Benchmark calculated" credit/hour (as seen below) is 13.33 credit/hour, with 4.02 it averaged 20.83 credits/hour, but with 4.24 it averaged (3 results so far) 21.74.

did the formula get boosted, reduced, or hasn't it happened yet? I haven't been following this board for weeks?


As Dan has said, the credit per WU has dropped (twice) recently.

However, the one WU with credit on your AMD64 3700 at the moment is one which was re-issued after one of the original quorum members failed to report. These re-issued WUs are given credit at the rate prevailing when they were first issued. You got a lucky bonus!

Astro
Astro
Joined: 18 Jan 05
Posts: 257
Credit: 1000560
RAC: 0

RE: You got a lucky

Message 44238 in response to message 44237

Quote:
You got a lucky bonus!


Wooohoooo!. I assume I should not use that one in my upcoming data table, as it might throw off the results (unless I collect a lot of them). LOL

thanks

Richard Haselgrove
Richard Haselgrove
Joined: 10 Dec 05
Posts: 2143
Credit: 2961559259
RAC: 691170

My 1.8 P4 Northwood server

Message 44239 in response to message 44238

My 1.8 P4 Northwood server 475735 is currently showing a good snapshot of what you can expect.

There's a small variation between WUs, but the long ones are typically just over 120 - the occasional 170's are outliers from before the credit correction/release of speeded-up app. There's no equivalent of the credit ranges from different ARs that you're used to from SETI.

Astro
Astro
Joined: 18 Jan 05
Posts: 257
Credit: 1000560
RAC: 0

This will be a bit long in

This will be a bit long in the pic dept, sorry to all you dial up users. Here's my up to date cross project comparison and graphs pertaining to my puters. Red text indicates "non current" credit schemes. Green indicates "Benchmark calclulated" credit/hour (the credit I should be claiming/granted).

NOTE: my Einstein data sample is small but I'm working on it. I think maybe when I've collected many samples, I should make Einstein two columns, one for long wus and one for short.

Also, the Einstein data labelled "4.24 pre Aug 30 rate reduction" only includes the data from WUs granted credit on the immediately previous system, not the original 4.24 scheme.


Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.