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Number crunching :
Longer WU's for same Amount of Credit ???
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Author | Message |
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Send message Joined: 29 Aug 07 Posts: 486 Credit: 576,548,171 RAC: 0 ![]() ![]() |
The Wu's have increased by about 1/3 but the Credit hasn't, right now Milkyway Credit is lower than Collatz or DNETC ... ??? STE\/E |
![]() ![]() Send message Joined: 12 Nov 07 Posts: 2425 Credit: 524,164 RAC: 0 ![]() ![]() |
The Wu's have increased by about 1/3 but the Credit hasn't, right now Milkyway Credit is lower than Collatz or DNETC ... ??? April Fools?? :( Doesn't expecting the unexpected make the unexpected the expected? If it makes sense, DON'T do it. |
![]() Send message Joined: 19 Jul 08 Posts: 67 Credit: 272,086,462 RAC: 0 ![]() ![]() |
The Wu's have increased by about 1/3 but the Credit hasn't, right now Milkyway Credit is lower than Collatz or DNETC ... ??? I'm seeing a 70% increase in time with no increase in credits. Guess it's time to go to Collatz. Cards run cooler on single precision anyay. |
Send message Joined: 9 Sep 08 Posts: 96 Credit: 336,443,946 RAC: 0 ![]() ![]() |
The Wu's have increased by about 1/3 but the Credit hasn't, right now Milkyway Credit is lower than Collatz or DNETC ... ??? Yep, me too... Collatz bound with everything... |
![]() ![]() Send message Joined: 12 Aug 09 Posts: 172 Credit: 645,240,165 RAC: 0 ![]() ![]() |
Bye, have fun, see ya later. NO wait, I am already have a presence there hahaha. Don't worry team, I am here for the science, so I will stay! Must admit, haven't seen the old nothing then 140% then count backwards routine for a few weeks now. ~2:37 on the 4 x aircooled 5970's and ~2:20 on the 2 x water cooled ones. ![]() |
![]() Send message Joined: 19 Jul 08 Posts: 67 Credit: 272,086,462 RAC: 0 ![]() ![]() |
Bye, have fun, see ya later. Lots of luck. Just checked your time and they've increased to 160 seconds from 108 seconds for the same credits. I believe that's a 48% reduction in effort. Don't take my word, just have a look. |
Send message Joined: 8 Feb 08 Posts: 261 Credit: 104,050,322 RAC: 0 ![]() ![]() |
Yep, seeing it here too. Old WU times ~110s (3.28897e+013 floatingpoint ops on GPU, 2.47165e+008 on FPU) New WU times ~161s (4.67516e+013 floatingpoint ops on GPU, 3.84156e+008 on FPU) Same credit. The new once should give ~305 instead of 213. :( First of April is over, so please correct this now. |
![]() ![]() Send message Joined: 13 Jan 08 Posts: 52 Credit: 59,823,507 RAC: 0 ![]() ![]() |
and we're getting the % going to 140%+ and then counting down. Looks like a weird bunch of WU's and now I cant send work back perfect It looks like it cleared Blah blah blah you know the rest |
Send message Joined: 4 Jan 10 Posts: 86 Credit: 51,753,924 RAC: 0 ![]() ![]() |
480sec against 327sec before, i.e 47% down update: 4870 OC'd 850/900, crunching 2WUs simultaneously ![]() |
![]() ![]() Send message Joined: 13 Jan 08 Posts: 52 Credit: 59,823,507 RAC: 0 ![]() ![]() |
110 before now 155 Blah blah blah you know the rest |
Send message Joined: 26 Jul 08 Posts: 627 Credit: 94,940,203 RAC: 0 ![]() ![]() ![]() |
New WU times ~161s (4.67516e+013 floatingpoint ops on GPU, 3.84156e+008 on FPU) To be correct, the current credit multiplier for double precision operations should be 5.44 credits per calculated Tflop (10^12 flop). That means the WU from your example is worth 46.7516 + 0.0004 TFlop (GPU + CPU) => 46.752 TFlop * 5.44 credits/DP-TFlop = 254.33 credits The last round of optimizations in september last year reduced the amount of necessary operations a bit (hence the speedup around that time), but the project sticked to the old flops count and didn't adapted the new values. |
Send message Joined: 4 Jan 10 Posts: 86 Credit: 51,753,924 RAC: 0 ![]() ![]() |
I restarted my rig, got new WUs, now it's OK. Probably, "bad" batch? :-) ![]() |
Send message Joined: 26 Nov 08 Posts: 6 Credit: 44,903,350 RAC: 0 ![]() ![]() |
My jobs seem to have returned to their old run times or very close, so need to run away yet. It may be about earning credits but it should not be all about it, people seem to jump from project to project as soon as they get a few hours of lower production, usually it works itself out and if the discrepancy is big the project usually makes an adjustment before long |
Send message Joined: 29 Aug 07 Posts: 486 Credit: 576,548,171 RAC: 0 ![]() ![]() |
I restarted my rig, got new WUs, now it's OK. Probably, "bad" batch? :-) Mine have returned to their normal Times too without rebooting but I think it may have had more to do with Travis messing with the Validator from what I read in another Thread, could be wrong on that though ... STE\/E |
Send message Joined: 29 Aug 07 Posts: 486 Credit: 576,548,171 RAC: 0 ![]() ![]() |
New WU times ~161s (4.67516e+013 floatingpoint ops on GPU, 3.84156e+008 on FPU) CP, I'm happy with the Credits I get get now but am I reading you right and your saying we should be actually getting more but the Project hasn't raised the Credits to the Level they should be ... ??? STE\/E |
Send message Joined: 8 Feb 08 Posts: 261 Credit: 104,050,322 RAC: 0 ![]() ![]() |
While I made a rough guess based on the credits for a 'normal' WU, he made a calculation based on the FLOP count of the example I gave. His results: The 'normal' WU gives a little bonus for the project hickups and the longer WU has nearly the same % as penalty. |
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