PrimeGrid News

[AMDave]

The Winter Solstice Challenge in 6 days
For those of us in the Northern Hemisphere, the full force of Winter is soon here. Please come join us in observing one of Nature's way-points...the Winter Solstice. A 3 day (19-22 Dec) Winter Festival/Challenge is being offered on the PPS (Sieve) application. 32 & 64 bit builds are available for Mac, Linux, and Windows as well as CUDA/ATI (OpenCL) for the GPU.This will conclude PrimeGrid's 2011 Challenge series (http://www.primegrid.com/challenge/challenge.php). For more information, please see this forum thread (http://www.primegrid.com/forum_thread.php?id=3812).

More... (http://www.primegrid.com/forum_thread.php?id=3828)

[Dirk Broer]

are You ready? Ready for what?
To be overrun by TeamChina (http://boincstats.com/bam/challengeChat.php?chid=173)!
They have taken off like a rocket (http://boincstats.com/stats/compare_graph.php?pr=pg&table=team&type=challenges&challenge_id=173&id%5B%5D=14&id%5B%5D=124)

[chris]

I'AM ready, throw 2 GPU's in the race.... 3 units per hour :) someone with me ?

[Dirk Broer]

Already busy using a GT 9500, a GTX 260 and my HD 4770. GT 430 is chewing Seti WUs!

[chris]

Hmmm, units become a little bit bigger. 6970 now need ca. 45 min a unit ( earlier 30 min. ) 5770 need 110 min ( 60 min. earlier )

[Dirk Broer]

At least they bring up the old amount of credit again, 3,371.00 It had sunk with the old-length WUs to as low as 2,225.0
For benchmarking purposes: 4770 125 min. (was 110); GTX 260 84 min. (was 55 min)

[chris]

Grrr... have trouble with GPU driver 1.4.1523 ... the HD 6970 takes up to 85% of a CPU core with PG :(
HD 5770 have driver 1.4.1417 and takes max. 9% of a CPU.
Thats bad for WGC during the PG challenge mmmnnhhh.
But i will not downgrade the driver (gamehead also) ... after the challenge i will upgrade to the newest... maybe than its better.
:icon_santa:

[Dirk Broer]

nVidia GTX 260 uses 17% of the CPU, using driver 28.562 under Win7 Ultimate 64-bit with 4 Gb of DDR2-800 RAM
Asus HD 4770 uses 61% of the CPU, using driver 1.4.1646 under Win8 Dev 64-bit with 8 Gb of DDR3-1600 RAM

[chris]

HD 4770 uses 61% of the CPU, using driver 1.4.1646
So i see the problem isn't fixed with the newest driver :(

[Dirk Broer]

The Solstice is almost over, but I can't make heads or tails about the scoring used.
NeoMetal (soon to be a *, according to a 19 December posting on the PrimeGrid forum) is the team's best performer for this challenge at #110 with 1442788 credits.
VALDIS follows at #324 with 546102 credits;
velociraptor01 is at #470 with 353955;
Chris is at #491 with 323616;
Dark_Moosey follows at #763 with 151695; close behind is
MiHost at #779 with 148324;
B Johansson (also busy with Mersenne) follows at #862 with 117985;
Sayajin is at #986 with 91017;
I am at #1141 with a mere 64049? (doing more than that in a day actually);
lazykiller follows me at #1240 with 50565;
Vijay Kanagala is at #1567 with 23597;
SagaciousB is at #1767 with 13484 and finally
Ed is at #2175 with 3371 credits

Comapre that to this, based upon daily averages (http://www.primegrid.com/team_members.php?teamid=14&offset=0&sort_by=expavg_credit)
1. NeoMetal 308661
2. VALDIS 256127
3. velociraptor01 170487
4. B Johansson 106785
5. vaughan 90782 (totally missing here above!)
6. Dirk Broer 83218 (daily average, that is more than 64049 after two and a half days!)
7. Dark_Moosey 83133
8. MiHost 68127
9. Sayajin 64490
10. lazykiller 53337
11. Chris 43912
12. Liuqyn 32936 (also missing above)

[Dirk Broer]

So i see the problem isn't fixed with the newest driver :(

Planning to build a FM1 system in December/January, then we know what a Llano based system does performance-wise with primegrid, using the latest drivers.
I'll add a HD 6570 or HD 6670 card later for virtual crossfire, but have to find a shop with reasonable A8-3800 prices first.
The HD 4770 runs in a i3-2100 system, perhaps the new drivers make use of the OpenCL and direct compute capabilities of the i3 and therefore give the relative high (61%) CPU-load. Then again I foresee that the Llano internal graphics are very CPU dependent, so I want DDR3-2133 memory to go with it.

[PcManiac]

Planning to build a FM1 system in December/January, then we know what a Llano based system does performance-wise with primegrid, using the latest drivers.
I'll add a HD 6570 or HD 6670 card later for virtual crossfire, but have to find a shop with reasonable A8-3800 prices first.
The HD 4770 runs in a i3-2100 system, perhaps the new drivers make use of the OpenCL and direct compute capabilities of the i3 and therefore give the relative high (61%) CPU-load. Then again I foresee that the Llano internal graphics are very CPU dependent, so I want DDR3-2133 memory to go with it.

my current system is a Llano system!
A8-3850
8GB G.Skill DDR3 @ 1866MHz
60GB OCZ Agility 3 primary and a 750GB WD for storage.

I haven't put in a good gfx card for testing the hybrid crossfire yet, however I have a 6670 coming in tomorrow for a customer's system I should test in mine lol. I think that one will work.

I built 2 other APU systems for my in-laws and I am quite happy with them. great performance for the price!

Newegg has the OEM version of the 3850 for $135 right now.

my motherboard is the Asus F1A75-V pro, and I wouldn't recommend it! (right now my windows time is way to fast. I gain about a minute every hour! not sure if it is the motherboard, or my OS...)

[Dirk Broer]

I have set my sights on the ASUS F1A75, to go with 8 Gb G.Skill @ 2133 Mhz, and to do it on the cheap I will re-use an old SATA disk for the time being,
and do the same with the power supply and the case. Keyboard and mouse are via the KVM switch by virtue of the two PS/2 ports from this mobo.
A new system does not have to be expensive! Besides, it will replace two older systems, so the power bill next year will actually be lower than this year.
Now just that magical A8-3800 that has a tpd of 65 Watt (or the even more magical A8-3820)

[Dirk Broer]

my current system is a Llano system!
A8-3850
8GB G.Skill DDR3 @ 1866MHz
60GB OCZ Agility 3 primary and a 750GB WD for storage.

At what voltage do you have your Ripjaws? Just bought the F1A75 and it wants 1.65 Volts sticks -at least on speeds as high as 1866 and above (higher is already under advanced overclocking on page 2-14 of the manual, but goes till 2400 Mhz)-, and the 2133 Ripjaws I had in mind are rated for 1.50 Volt

[PcManiac]

At what voltage do you have your Ripjaws? Just bought the F1A75 and it wants 1.65 Volts sticks -at least on speeds as high as 1866 and above (higher is already under advanced overclocking on page 2-14 of the manual, but goes till 2400 Mhz)-, and the 2133 Ripjaws I had in mind are rated for 1.50 Volt
Running at 1.5v and 9-9-9-24 timings.. I know the ripjaws 1866 is supposed to be 9-10-9-28, but I had the 1600MHz installed before, and it works fine lol
I need a little time to sit down and tweak this system!
the 1600mhz actually is 1.25v stock I just noticed.

Edit: hahah! I just realized something.. I am using the "sniper" series.. not ripjaws.. sorry lol