Welcome to PrimeGrid's Birthday/Summer Solstice Challenge
While the Challenge is still quite some time away, we wanted to prepare everyone for the intensity of doing LLR testing on such large numbers. PSP LLR is currently testing n>7M which can produce a 2M+ digit prime.
This Challenge will definitely live up to its definition...it will truly be challenging. It will be like running a constant "stress test" on your computer for 9 days straight. Solid, well cleaned and cooled computers will be a necessity. Good hardware will "rule the day".
As for the psychology of the Challenge, patience will be the virtue needed if you wish to participate.
![Smile :)](./images/smilies/icon_e_smile.gif)
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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." WU's will take ~30-35 hours on fast/newer computers and 50-90 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 return valid LLR results.
Application builds are available for Linux 32 bit and Windows 32 bit. These applications will be sent to 64 bit clients. As with all LLR application projects, there is no advantage of 64 bit over 32 bit.
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Greeting fellow PG crunchers.
After reading the info on the up and coming challenge
I thought i should run a few tests So.....
I put 4 cores onto doing PSP (LLR)
Results so far :
Wu time Running time Progress
Core 1 108hrs 8hrs 16%
Core 2 109hrs 7hrs 15%
Core 3 115hrs 6hrs 11%
Core 4 118hrs 5hrs 9%
This is being done on a AMD rig with all air cooling, side panels ON and NO overclocking.
Pc is running great with NO over heating problems (atm) but were only 8hrs into this, but i don't for see any problems at this time (kiss of death).
I will up date this as time goes by.
b.
![Very Happy :D](./images/smilies/icon/biggrin.gif)