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PrimeGrid News
World Record Generalized Fermat Prime
On 19 Nov 2011 14:03:58, PrimeGrid's PRPNet found the largest known Generalized Fermat mega prime: 75898^524288+1The prime is 2,558,647 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 1st for Generalized Fermat Primes and 13th overall. This is the first prime found at N=524288.The discovery was made by Michael Goetz of the United States using an NVIDIA GeForce GTX 460 in an Intel Core2 Q6600 @ 2.4GHz system with 8GB RAM, running 64 bit Windows 7. This GPU took just under 5 hours to probable prime (PRP) test with GenefCUDA. The CPU completed the primality test using pfgw64 in a little over 8 days! Michael is a member of the SETI.USA team.More details to come...
More...
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The Leonids Challenge
The Leonids Challenge finished
6 AMD Users bring Team on #33
97___NeoMetal_______1322106.57
269__Chris___________451093.03
486__哦 _____________187767.53
851__Lysergius_________51523.19
943__202life___________35413.12
1340_Ed_______________17121.95
I think it's not so bad with a WCG challenge at the same time 
Greetz,
Chris
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My sole result during the challenge (another one finished just after the closure) must have been below the cut-off mark
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hihihi... you make the WU on your mobile phone ? 
Greetz,
Chris
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Any idea how long a 321 LLR might take on an 3200 Mhz Intel P4? Cooler making the noise of a jet fighter all the while? 204,888.00 sec.
But the mosquito's don't dare come nearer with the Intel stock cooler screaming like a banshee. Had to up the memory from 1 to 2 GiB to let it run anywhere near decent.
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Hmmm, this is crazy !? My Phenom @ 3400 Mhz ( not overclocked ) made the units around 58,000 sec.
http://www.primegrid.com/results.php?hostid=179075
Are you sure you didn't make Woodall's from last challenge ?
But i have no jet fighter... he is watercooled
Last edited by chris; 11-24-2011 at 07:32 PM.
Greetz,
Chris
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So we can deduce that a Phenom II@3400Mhz is a much better CPU than a Prescott P4@3200Mhz. I only run it because the micro-ATX mobo in question (that's preventing the use of my Coolermaster Hyper Z600 or my Thermaltake BigTyp120) will not except much better and it runs my nVidia GT430. I am saving for a new system, but need at least mobo, CPU and RAM, so around 150 Euro's for a start and later more for upgrading, performance-wise.
Last edited by Dirk Broer; 11-25-2011 at 07:31 PM.
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Uii, I'm user of the day
Congratulations!
You've been chosen as the PrimeGrid user of the day!
Your profile will be featured on the PrimeGrid website for the next 24 hours.
Greetz,
Chris
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Nice big, very well ventilated casing you have! Stylishly in back-and-white, if I'm not mistaken.
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