Surprise! PrimeGrid "GFN Short" challenge Jan 4-17 w/ nVidia GPUs

[zzuupp]

Thanks for the stats!

 

[PCTC2]

Oh man. I wish I could join, but I just don't have enough rack space or amperage to fire up the GPU cluster. 36 cores, 192GB RAM, 24 GTX 680s... damnit. I'm already drawing 11 amps per phase off my 15 amp PDUs.... I'm pretty sure I'll draw more than 8 amps off each PDU for the cluster.

 

[petrusbroder]

I have opened an recruit thread in the forum:

We have a "In-Challenge"-race going on between BOINC@MIXI (#11), TeAm AnandTech (#12) and Polish national Team (#13). We keep changes places in the stats.
Can we recruit some more crunchers?
We need all the power we can get!

 

[GLeeM]

I'll be in with my gpus. As I recall we need to clock down the memory frequency on factory overclocked cards?

Yikes! First WU had error after a minute

Can we get by with any OC at all? Not even a little bit?

 

[Ken g6]

It totally varies between cards. GTX550s are particularly sensitive and tend to need to be underclocked. Memory is usually the culprit - GTX 460 768MBs like mine can be nicely overclocked - but shaders can be overclocked too much as well.

Edit: Just saw this in the PrimeGrid chat forum: "chip: the best test is occt gpu, mode - error check". I don't know for sure if it's the best test, but if you get any more failures it couldn't hurt.

 

[Ken g6]

Day 3 stats:

Rank___Credits____Username
20_____744198_____petrusbroder
35_____495421_____biodoc
55_____381998_____zzuupp
164____104181_____SlangNRox
184____101460_____Ken_g6
235____52019______geecee
246____50172______Icecold

Rank__Credits____Team
8_____2837899____PrimeSearchTeam
9_____2663447____Aggie The Pew
10____2309040____Crunching@EVGA
11____1929451____TeAm AnandTech
12____1864445____BOINC@MIXI
13____1809733____Polish National Team
14____1173777____The Knights Who Say Ni!

Not too much change. We're ahead of the two teams nearest us, at the moment.

 

[Ken g6]

Oh man. I wish I could join, but I just don't have enough rack space or amperage to fire up the GPU cluster. 36 cores, 192GB RAM, 24 GTX 680s... damnit. I'm already drawing 11 amps per phase off my 15 amp PDUs.... I'm pretty sure I'll draw more than 8 amps off each PDU for the cluster.

First off, I don't think GFN draws any more power than FAH. But maybe you weren't using the GTX 680s on that either?

Second, you should be able to configure BOINC to use only a few of those GPUs, if that helps.

 

[Kiska]

Oh dear errors? It tends to be with temperature, that is the culprit and mess with the needed calculations and math behind. So yes overclocking might be the problem but it is usually the temperature.
EDIT: And I will have a stats spreadsheet ready in a few hours

 

[petrusbroder]

If all goes well, I'll be delivering 7 WUs within the next 12 hours ... and then? I don't know, the WUs differ quite a lot in run-lengths ...

 

[GLeeM]

GTX550s are particularly sensitive and tend to need to be underclocked.

I have a GTX560 Ti 448 Core. I think that means it is factory OC'ed?

And it erred half way through on a WU that three others erred out on. Should I underclock the memory or ignore that WU?

 

[Ken g6]

Day 4 stats:

Rank___Credits____Username
21_____1001981____petrusbroder
38_____653224_____biodoc
56_____513917_____zzuupp
188____130614_____SlangNRox
208____127086_____Ken_g6
244____76687______Icecold
254____52936______GLeeM
273____52019______geecee

Rank__Credits____Team
10____3195137____Crunching@EVGA
11____2658397____BOINC@MIXI
12____2627850____Polish National Team
13____2608469____TeAm AnandTech
14____1729651____Team China
15____1642720____The Knights Who Say Ni!
16____1575379____Ukraine

We're falling a little behind.

I have a GTX560 Ti 448 Core. I think that means it is factory OC'ed?

Not necessarily. The 448 cores version is essentially a faster gtx 470. Compare your clock speeds to stock clocks here.

And it erred half way through on a WU that three others erred out on. Should I underclock the memory or ignore that WU?

I guess it's possible to have a bad WU in GFN, but the chances are extremely low. Stock clock and/or underclock and/or add more cooling (e.g. case fans) and/or turn up your card's fans as high as you can stand them.

 

[PCTC2]

First off, I don't think GFN draws any more power than FAH. But maybe you weren't using the GTX 680s on that either?

Second, you should be able to configure BOINC to use only a few of those GPUs, if that helps.

I've got two new systems in that are attached to the PDU that the GPU cluster was on. I only have 15 amps per phase so adding on the GPU cluster to the PDU would be pushing it.

 

[petrusbroder]

GFN Short Challenge:

Team Stats as of 2013-01-08, 20:00 UTC

Rank ____ Team name ______________________ Points ___
06 ______ SETI.USA _____________________ 6 029 720.50
07 ______ PrimeSearchTeam ______________ 4 325 119.20
08 ______ Keep The Fire Alive __________ 4 314 823.03
09 ______ Aggie The Pew ________________ 3 726 969.86
10 ______ Crunching@EVGA _______________ 3 247 937.19
11 ______ BOINC@MIXI ___________________ 2 734 939.82
12 ______ Polish National Team _________ 2 705 379.09
13 ______ TeAm AnandTech _______________ 2 660 740.00
14 ______ Team China ___________________ 1 835 540.40
15 ______ The Knights Who Say Ni! ______ 1 642 720.24
16 ______ Ukraine ______________________ 1 601 885.97
17 ______ BOINC@Poland _________________ 1 458 278.69
18 ______ Texas A&M University _________ 1 442 235.23

79 teams in the race.


Individual stats as of 2013-01-06, 18:45 UTC

Rank _____ Name ____________________________ Points ___
020 ______ petrusbroder ________________ 1 027 729.39
039 ______ biodoc ________________________ 679 747.46
058 ______ zzuupp ________________________ 513 917.65
191 ______ SlangNRox _____________________ 130 614.92
209 ______ Ken_g6 ________________________ 127 086.90
246 ______ Icecold ________________________ 76 687.57
255 ______ GLeeM __________________________ 52 936.52
275 ______ geecee _________________________ 52 019.58

372 participants in the race.


Edit: Sorry, I did not check before posting ...

 

[somethingsketchy]

Besides the folks running GPUs in this race, has anyone turned in any CPU tasks yet? I'm curious to see how Sandy Bridge/Ivy Bridge and the FX-8000 series CPUs are doing overall. I'm running roughly 80 hours for ~50% completed.

 

[zzuupp]

Besides the folks running GPUs in this race, has anyone turned in any CPU tasks yet? I'm curious to see how Sandy Bridge/Ivy Bridge and the FX-8000 series CPUs are doing overall. I'm running roughly 80 hours for ~50% completed.

Theoretically, I'll return CPU tasks in 30 - 37 hrs. This is with HT off on an i2600K.

 

[Kiska]

And for me I will theoretically return 2 tasks in 230-270 hours on the C2D P8400 laptop CPU running stock speeds which is 2.27Ghz

 

[Uppsala9496]

I have 2 gpu tasks waiting for validation. Should have another 2 tonight.
I started late to the game so I'm hoping I can get some cpu tasks in before the deadline.
Have an fx8120 and 2 1055t's going.

 

[blckgrffn]

I've got it running on my 3.6 IVB - 4 tasks but HT enabled. I am getting ~1% completion per hour based on the late tasks I pulled.

SB @ 3.8 with 8 tasks and HT is going at about half that rate, predictably I may turn in 16 WUs for the whole race!

 

[Ken g6]

Day 5 stats:

Rank___Credits____Username
20_____1313118____petrusbroder
45_____805203_____biodoc
57_____644332_____zzuupp
198____158607_____GLeeM
214____153646_____Ken_g6
226____130614_____SlangNRox
231____129113_____Icecold
257____79497______Uppsala9496
285____74311______geecee

Rank__Credits____Team
8_____5527883____PrimeSearchTeam
9_____4835267____Aggie The Pew
10____3879283____Crunching@EVGA
11____3488445____TeAm AnandTech
12____3405263____Polish National Team
13____3357952____BOINC@MIXI
14____2443006____Team China

And we're back up to 11, though the race is still very tight.

Edit: Welcome to Uppsala9496, and way to go GLeeM!

 

[biodoc]

Thanks for joining the race, GLeeM and Uppsala! :thumbsup:

I added my 3939K cores to the race. Hopefully they will finish in time.

Thanks for taking care of the stats, Ken_G6 and Peter!:thumbsup:

 

[zzuupp]

Theoretically, I'll return CPU tasks in 30 - 37 hrs. This is with HT off on an i2600K.

I'm quoting myself, because things happened happily faster.

3 of the first 4 are CPU tasks are done. They took approximately 460K seconds

---Thanks for the stats
---and are we gaining on EVGA???

 

[Uppsala9496]

Windows update in the middle of the night last night. Hopefully I didn't miss too much time. The monitors turning on woke my wife up who in turn woke me up asking if I was just on the computers. My response was no, but now I am going to be.

 

[kb3edk]

I have 2 gpu tasks waiting for validation. Should have another 2 tonight.
I started late to the game so I'm hoping I can get some cpu tasks in before the deadline.
Have an fx8120 and 2 1055t's going.

I'm also late to the game but better late than never.... haven't run PrimeGrid in many years but this seems like the perfect time to get back on board! Looks like we are in a tight race so even my creaky old GTX 260 is bound to help some.

 

[Uppsala9496]

Hopefully my 3 machines can get the CPU work done in time. Looks like the gpu's are doing well. Might have to put the GTS 450 I lent my parents to use...PG doesn't kill the ability to use the computer like F@H does.

 

[Ken g6]

I'm also late to the game...with stats today.

Rank___Credits____Username
22_____1546582____petrusbroder
41_____1041149____biodoc
53_____853673_____zzuupp
185____234082_____GLeeM
198____212293_____Uppsala9496
212____183844_____SlangNRox
223____180275_____Ken_g6
235____155840_____Icecold
257____127526_____geecee
390____26109______mike656

Rank__Credits____Team
8_____6806636____PrimeSearchTeam
9_____6454594____Aggie The Pew
10____4914042____Crunching@EVGA
11____4561378____TeAm AnandTech
12____4164762____BOINC@MIXI
13____4135312____Polish National Team
14____3094095____Team China

---and are we gaining on EVGA???

Unclear, but at least with the new recruits we're not losing ground to Poland et al. Although we really don't know who has CPU work running.