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Welcome to the World Animal Day Challenge 2013

post #1 of 2
Thread Starter 
Is anyone interested in representing OCN in this challenge? It will be tough for some due to Oct BGB being the 1-3 and this challenge is the 4-9 but any help is better than none.


SOURCE


Quote:
A 5 day Challenge is being offered on PrimeGrid's The Riesel Problem (LLR) application. To participate in the Challenge, please select only the The Riesel Problem (LLR) project in your PrimeGrid preferences section. The challenge will begin 4 October 2013 18:00 UTC and end 9 October 2013 18:00 UTC. Application builds are available for Linux , Windows and MacIntel 32 bit and 64 bit. CPU's with AVX capabilities will be significantly faster than the ones without, as this instruction set allows for more computing power.

ATTENTION: The primality program LLR is CPU intensive; so, it is vital to have a stable system with good cooling. It does not tolerate "even the slightest of errors." Please see this post for more details on how you can "stress test" your computer. WU's will take ~6 hours on fast/newer computers and 12+ hours on slower/older computers. If your computer is highly overclocked, please consider "stress testing" it. Sieving is an excellent alternative for computers that are not able to LLR. smile.gif

Please, please, please make sure your machines are up to the task.
post #2 of 2
For those that are wondering, the only processor groups that support AVX are Sandy Bridge, Ivy Bridge, Haswell, Bulldozer, and Piledriver.

It really is a big difference in speed for this Project... like 50% difference..

And your system does need to be 100% stable in all ways or it will compute error constantly. Some may find their memory and CPU at stock speeds doesn't work! Well, those systems have something wrong with them..

For Intel overclockers, I have discovered the "Execute Disable bit" should be "Disabled" for overclocking. Seems whatever it does, it doesn't like to go fast at all! smile.gif

If I am lucky, I may be able to have 2 or 3 systems online then.. we will see how the house remodel continues.. which has been dang slow..

biggrin.gif

Testing DATA: (as I get it)

Linux- I5-3570 4.5GHz 4 Threads.........6.25 to 8.45 hours per task
Linux- I7-2600K 4.5GHz 8 Threads.......12 to 17.5 hours per task
Windoz- i3-4130 3.4GHz 2 threads.......9.5 to 10.75 hours per task HT ON
Edited by Tex1954 - 9/22/13 at 10:58pm
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Blue Beast
(13 items)
 
  
CPUMotherboardGraphicsRAM
W3670 4.0 GHz (HT On) 1.345v 24/7 Asus P6X58D Premium DUAL EVGA GTX 560 Ti SC 1G in SLI 12G Corsair Dominator GT2000MHz 
Hard DriveOptical DriveOSMonitor
Kingston V300 120G SSD, 2x 1TB Barracuda HD's LG BlueRay/LightScribe Burner Windows 7 Pro 64Bit 3x24", 1x22" LCD 
KeyboardPowerCaseMouse
Wireless Logitech K320 ULTRA X4 1200W Custom Danger Den LDR-29 Wireless Logitech M310 
Mouse Pad
Custom 
  hide details  
Reply
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