找回密码
 新注册用户
搜索
楼主: fwjmath

[项目新闻] [BOINC][数学类]PrimeGrid

[复制链接]
头像被屏蔽
发表于 2010-8-25 12:11:46 | 显示全部楼层
提示: 作者被禁止或删除 内容自动屏蔽
回复

使用道具 举报

发表于 2010-9-15 11:05:20 | 显示全部楼层
2010-09-15

金盏花赛

详情:http://www.equn.com/forum/thread-28609-1-1.html

评分

参与人数 1基本分 +30 维基拼图 +3 收起 理由
霊烏路 空 + 30 + 3

查看全部评分

回复

使用道具 举报

头像被屏蔽
发表于 2010-9-19 20:16:37 | 显示全部楼层
提示: 作者被禁止或删除 内容自动屏蔽
回复

使用道具 举报

头像被屏蔽
发表于 2010-9-24 08:36:11 | 显示全部楼层
提示: 作者被禁止或删除 内容自动屏蔽
回复

使用道具 举报

头像被屏蔽
发表于 2010-10-5 08:57:31 | 显示全部楼层
提示: 作者被禁止或删除 内容自动屏蔽
回复

使用道具 举报

头像被屏蔽
发表于 2010-10-6 23:55:52 | 显示全部楼层
提示: 作者被禁止或删除 内容自动屏蔽
回复

使用道具 举报

头像被屏蔽
发表于 2010-10-7 00:10:37 | 显示全部楼层
提示: 作者被禁止或删除 内容自动屏蔽
回复

使用道具 举报

发表于 2010-11-10 15:49:32 | 显示全部楼层
11月9日
PrimeGrid的PPS Sieve子项目
PPS Sieve 子项目将要暂停。目前的缓存的任务全都发出并回收验证过后,ppsieve将调换到tpsieve,以平衡+1和-1形式的质数筛子。更多信息请参阅http://www.primegrid.com/forum_thread.php?id=2799
一周内或许能够恢复正常。:)


11月上旬的一些新闻
准备Leonids II所执行的测试运行
本周日2010年11月7日 18:00UTC 北京时间 星期一早2点开始用PPS(LLR)项目进行了压力测试,项目方希望找到处理速度与任务缓存之间的平衡点。

评分

参与人数 1基本分 +40 维基拼图 +20 收起 理由
霊烏路 空 + 40 + 20

查看全部评分

回复

使用道具 举报

发表于 2011-2-26 02:05:30 | 显示全部楼层
2011年2月24日
World Record Generalized Woodall Prime

On 24 Feb 2011, 17:27:31 UTC, PrimeGrid’s PRPNet found the largest known generalized Woodall prime:

404882*43^404882-1

The prime is 661,368 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 1st for generalized Woodall primes and 71st overall.

The discovery was made by Ricky L. Hubbard of the United States using an AMD Athlon II X4 635 @ 2.90GHz with 8GB RAM, running Windows 7. This computer took about 4 hours and 15 minutes to complete the probable prime test and a little over 30 hours 3 minutes to complete the primality test. Ricky is a member of the AMD Users Team.

For more details, please see the official announcement.
大意是PRPNet发现已知最大素广义伍德尔数为404882*43^404882-1
回复

使用道具 举报

发表于 2011-3-13 16:18:55 | 显示全部楼层
2011.3.12
服务器下线 安装其他硬件和重组网络服务器机架预计要到周一恢复 请预留缓存wu
回复

使用道具 举报

头像被屏蔽
发表于 2011-5-3 08:35:20 | 显示全部楼层
提示: 作者被禁止或删除 内容自动屏蔽
回复

使用道具 举报

头像被屏蔽
发表于 2011-5-21 15:04:25 | 显示全部楼层
提示: 作者被禁止或删除 内容自动屏蔽
回复

使用道具 举报

发表于 2011-7-12 22:01:58 | 显示全部楼层
Prime Fermat Divisor found

Congratulations to Peter Doggart (Hammeh) of the United Kingdom, the discoverer of PrimeGrid's 7th Prime Fermat Divisor in the Proth Prime Search project: 4479*2^226618+1 Divides F(226614). This is the 291st known divisor and the 8th found in 2011. Peter is a member of PrimeSearchTeam.

Official Announcement

PrimeGrid’s
Proth Prime Search
On 08 July 2011 02:22:20 UTC, PrimeGrid's Proth Prime Search project, through
PRPNet, found a prime Fermat divisor:
4479*2
226618
+1 Divides F(226614)
The prime is 68,223 digits long.  It is the 8th divisor found in 2011 and 291st
overall.
The discovery was made by Peter Doggart of the United Kingdom using an AMD
Phenom 9600 X4 @ 2.3GHz with 3 GB RAM running 32 bit Windows 7.  This
computer took 78 seconds to complete the primality test using LLR. Peter is a
member of the PrimeSearchTeam.
The credits for the discovery are as follows:
1. Peter Doggart (United Kingdom), discoverer
2. PrimeGrid, et al.
3. Srsieve, sieving program developed by Geoff Reynolds
4. PSieve, sieving program developed by Ken Brazier and Geoff Reynolds
5. LLR, primality program developed by Jean Penné
6. OpenPFGW, a primality program developed by Chris Nash & Jim
Fougeron with maintenance and improvements by Mark Rodenkirch
Fermat number divisibility (including generalized and extended) was checked by
OpenPFGW using the following settings: -gxo –a2 4479*2^226618+1. For more
information about Fermat and generalized Fermat number divisors, please see
Wilfrid Keller's sites:
http://www.prothsearch.net/fermat.html
http://www1.uni-hamburg.de/RRZ/W.Keller/GFNfacs.html
There were no generalized or extended generalized Fermat number divisors.
Using a single PC would have taken years to find this prime. So this timely
discovery would not have been possible without the thousands of volunteers who
contributed their spare CPU cycles. A special thanks to everyone who
contributed their advice and/or computing power to the search - especially all the
sievers who work behind the scenes to make a find like this possible.
This is PrimeGrid’s 7th prime Fermat divisor.  The Proth Prime Search will
continue to search for more primes. To join the search please visit PrimeGrid:
http://www.primegrid.comPrimeGrid’s
Proth Prime Search
About PrimeGrid
PrimeGrid is a distributed computing project, developed by Rytis Slatkevičius,
Lennart Vogel, and John Blazek, which utilizes BOINC and PRPNet to search for
primes. PrimeGrid's primary goal is to bring the excitement of prime finding to the
"everyday" computer user. Simply download the software and let your computer
do the rest. Participants can choose from a variety of prime forms to search. With
a little patience, you may find a large or even record breaking prime.
BOINC
The Berkeley Open Infrastructure for Network Computing (BOINC) is a
software platform for distributed computing using volunteered computer
resources. It allows users to participate in multiple distributed computing
projects through a single program. Currently BOINC is being developed by
a team based at the University of California, Berkeley led by David
Anderson.
This platform currently supports projects from biology to math to astronomy.
For more information, please visit BOINC: http://boinc.berkeley.edu
PRPNet
PRPNet is a client/server application written by Mark Rodenkirch that is
specifically designed to help find prime numbers of various forms. It is easily
ported between various OS/hardware combinations. PRPNet does not run
each PRP test itself, but relies on helper programs, such as LLR, PFGW,
phrot, and genefer to do the work.
For more information, please visit PrimeGrid’s PRPNet forum thread:
http://www.primegrid.com/forum_thread.php?id=1215
For more information about PrimeGrid and a complete list of available prime
search projects, please visit: http://www.primegrid.com

大意:英国的Peter Doggart发现了在PPS项目中第七个Prime Fermat Divisor  这个是第291个发现并且是2011年的第8个发现。Peter是PrimeSearchTeam的成员
回复

使用道具 举报

发表于 2013-4-30 20:09:55 | 显示全部楼层
2013-04-29: PrimeGrid, Low Country Festivities Challenge starts tonight at 18:00 UTC

At the end of April and start of May many festivities take place in the Lowcountries. We would like to invite you to join us to celebrate this with an 8 day challenge on the Woodal LLR subproject. The challenge starts on April 29th, 18:00 UTC and will end on May 7th, 18:00 UTC.

For more information, see the relevant thread on our forums.

We hope to see you there tonight and please spread the word.


2013年4月29日
Low Country Festivities 挑战赛世界协调时今日18点整开赛
比赛子项目为Woodal LLR,全程八日,将于五月七日18时结束。
关于比赛的详细信息请见项目论坛相关主题。
期待着你的参加~

评分

参与人数 1基本分 +3 收起 理由
zhouxiaobo + 3 已放到首页。

查看全部评分

回复

使用道具 举报

发表于 2013-5-5 22:18:16 | 显示全部楼层

2013年5月5日
新的勋章发布啦!
经过了各种纠结后,PrimeGrid扩充了可获得的勋章种类。
现在,每个子项目都拥有18种不同等级的勋章。旧版勋章十分容易被超越,甚至曾出现过某用户得分超过获得最高等级勋章所需分数的1000倍的情况。如今这种情况已不会再出现,您的多个成就将全部被识别出来!
详细的勋章等级设定见此:http://www.primegrid.com/forum_thread.php?id=5000
您还可以来这里参加勋章的相关讨论:http://www.primegrid.com/forum_thread.php?id=4993

祝大家算得尽兴!


完毕


原文:http://www.primegrid.com/forum_thread.php?id=5001
2013-05-05: PrimeGrid, New Badges!

After much arm twisting, hair pulling, pixel-wrangling, and a lot of great discussion, PrimeGrid (with a LOT of help from many of our participants) has extended the range of badges that can be earned.

There's now 18 different badge levels for each project. Many people will see new badge colors and shapes. The old badges were easily exceeded; at least one person had in excess of 1000 times the credit needed for our highest badge. That's the case no longer; your mega-achievements will now be recognized!

The new badge levels can be seen here, and you can discuss the new badges here.

Happy crunching!

回复

使用道具 举报

您需要登录后才可以回帖 登录 | 新注册用户

本版积分规则

论坛官方淘宝店开业啦~
欢迎大家多多支持基金会~

Archiver|手机版|小黑屋|中国分布式计算总站 ( 沪ICP备05042587号 )

GMT+8, 2024-3-28 19:37

Powered by Discuz! X3.5

© 2001-2024 Discuz! Team.

快速回复 返回顶部 返回列表