New MEGA prime and World Record Fermat Divisor!
Source:  PrimeGrid
vendredi 8 août 2014 18:39

On 25 July 2014, 8:47:48 UTC, PrimeGrid’s Mega Prime Search found a world record prime Fermat divisor: 193*2^3329782+1 Divides F(3329780) The prime is 1,002,367 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 1st for prime Fermat divisors and 98th overall. It is also a new record for "weighted" prime Fermat divisors. The discovery was made by Raymond Ottusch (RaymondFO*) of the United States using an Intel Core i7-3930K CPU @ 3.20GHz with 12 GB RAM running Microsoft Windows 7 Professional. This computer took about 1 hour 11 minutes to complete the primality test using LLR. Raymond is a member of the Sicituradastra. team. The prime was verified on 28 Jul 2014, 5:02:21 UTC by John Christy (John Christy) of the United States using an Intel Xeon CPU E31220 @ 3.10GHz with 8 GB RAM running Linux. This computer took about 1 hour and 24 minutes to complete the primality test using LLR. John is a member of the USA team. For more details, please see the official announcement.


New MEGA prime found!
Source:  PrimeGrid
jeudi 7 août 2014 02:12

On 24 July 2014, 3:59:36 UTC, PrimeGrid’s Mega Prime Search found the Mega Prime: 129*2^3328805+1 The prime is 1,002,073 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 98th overall. The discovery was made by Eric Clifton (Grandpa) of the United States using an Intel Core i7-2700K CPU @ 3.50GHz with 16GB RAM running Microsoft Windows 7 Professional. This computer took about 46 minutes 7 seconds to complete the primality test using LLR. Eric is a member of the [H]ard|OCP team. In addition to being verified internally, the prime was also verified on 27 July 2014, 3:34:11 UTC, by Vladislav Ketamino (ThrasherX-17) of the Ukraine using a Genuine Intel CPU @ 1.60GHz with 8 GB RAM running Microsoft Windows 7 Ultimate. This computer took about 2 hours and 18 minutes to complete the primality test using LLR. Vladislav is a member of the Keep The Fire Alive! team. For more details, please see the official announcement.


Project News 6 august 2014
Source:  Leiden Classical
mercredi 6 août 2014 00:00

We have been experiencing network problems today and yesterday. Let's hope the IT dep boys are able to fix it soon!


Planned downtime on 2014-08-11 08:00-18:00 CET
Source:  EDGeS@Home
jeudi 7 août 2014 14:45

There will be a downtime on 2014-08-11 (next monday) from 08:00-18:00 CET due to network maintenance.


New SR5 Mega Prime!
Source:  PrimeGrid
mercredi 6 août 2014 04:10

On 23 July 2014, 5:52:51 UTC, PrimeGrid’s Sierpinski/Riesel Base 5 Problem project eliminated k=24032 by finding the mega prime: 24032*5^1768249+1 The prime is 1,235,958 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 54th overall. This is the largest known base 5 mega prime. 39 k's now remain in the Sierpinski Base 5 Problem. The discovery was made by Hiroyuki Okazaki (zunewantan) of Japan using an Intel Xeon CPU E31220 @ 3.10GHz with 4GB RAM running Microsoft Windows Server 2008. This computer took about 3 hours and 16 minutes to complete the primality test using LLR. Hiroyuki is a member of the Aggie The Pew team. The prime was verified on 23 July 2014, 8:30:46 UTC, by Vincent Ollivier (MohMan) of Canada using an Intel Core i7-3770 CPU @ 3.40GHz with 8 GB RAM running Microsoft Windows 7 Professional. This computer took about 6 hours and 38 minutes to complete the primality test using LLR. Vincent is a member of the SUPINFO team. For more details, please see the official announcement.


27 Mega Prime
Source:  PrimeGrid
mercredi 6 août 2014 02:56

On 17 July 2014, 2:36:47 UTC, PrimeGrid’s 27121 Prime Search, through PRPNet and in collaboration with the 12121 Search (k=27 sister project), has found the mega prime: 27*2^4542344-1 The prime is 1,367,384 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 47th overall. The discovery was made by Scott Brown (Scott Brown) of the United States using an AMD Phenom(tm) II X6 1055T Processor with 4GB RAM, running Microsoft Windows 7 Enterprise. . This computer took just over 8 hours 25 minutes to complete the primality test using LLR. Scott is a member of the Duke University Team. For more details, please see the official announcement.


N-Body Release 1.42
Source:  Milkyway@home
mardi 5 août 2014 19:02

Dear users, N-Body will be released at 4 pm EST today. Features of this release include an improved dwarf galaxy model and new data representation features. Post here with issues. As this is likely my last release on this project (due to my move to England for graduate school), I would like to thank all of you for helping me do great science during my time affiliated with Dr. Newberg's group. I will still be active in the community, but I am proud to hand my role in the project off to Sidd. I look forward to a continued relationship with the BOINC community in the future. Cheers, Jake Bauer


Comet Trails: Esa Rosetta and Comet Trails
Source:  Constellation@Home
mercredi 6 août 2014 06:29

Hi everyone, this is a brief news for now, it will be expanded later. Today, the ESA Rosetta mission will approach its destination at Comet 67P/Churyumov–Gerasimenko. It is an extraordinaire achievement and we want to celebrate this is a special way. We thought, it would be great to have all of us somehow related to this event, so we made you calculate the dust streams of Churyumov–Gerasimenko during the last runs of our Comet Trails app and animate it. Here you go... click the image for the youtube video


Simulations indicate that policy coordination is key to sustainability efforts
Source:  World Community Grid News and Updates
mercredi 30 juillet 2014 17:38

Preliminary analysis of the Computing for Sustainable Water data shows the importance of broad community-based coordination, so that environmental priorities can be achieved with a minimum of redundant effort. The project has also increased understanding of sustainability practices in other watershed areas.


Calling all climate change scientists
Source:  World Community Grid News and Updates
mardi 29 juillet 2014 13:26

In response to President Obama's call to action on the Climate Data Initiative, we invite scientists studying climate change issues to submit proposals for accessing massive supercomputing power to advance their research.



   

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