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2008-06-07 14:15 UTC PrimeGrid's Birthday Challenge
PrimeGrid's Challenge series continues with the Birthday Challenge. Please come join us in celebrating PrimeGrid's 3rd Birthday. A 24 hour Challenge is being offered on PrimeGrid's oldest active application, the Twin Prime Search. Hopefully we'll be able to give PrimeGrid a good present by finding the twin during the Challenge. For more information, please see this forum thread.
(
www.primegrid.com/forum_thread.php?id=942
)
Dal forum:
Welcome to PrimeGrid's Birthday Challenge
PrimeGrids Challenge series continues with the Birthday Challenge. Please come join us in celebrating PrimeGrids 3rd Birthday. A 24 hour Challenge is being offered on PrimeGrids oldest active application, the Twin Prime Search. Hopefully well be able to give PrimeGrid a good present by finding the twin during the Challenge.
To participate, please select only the TPS LLR project in your PrimeGrid preferences section. The challenge will begin 12 June 2008 00:00 UTC and end 13 June 2008 00:00 UTC. 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.
Scoring Information
Scores will be kept for individuals and teams. Only work units issued AFTER 12 June 2008 00:00 UTC and received BEFORE 13 June 2008 00:00 UTC will be considered for credit. Since this is a fixed n as well as a fixed credit project, well be using cobblestones for scoring.
Best of Luck in finding the twin primes.
P.S. Please take a look at the next post and learn about PrimeGrids evolution.
This is a fluid description based on bits and pieces I gathered in the forum. For those who have excellent memories or deft detective skills, please PM me with your suggestions, improvements, corrections, etc.
Introduction
PrimeGrid is a volunteer computing project searching for world record prime numbers. It is built on the Berkeley Open Infrastructure for Network Computing (BOINC) platform. It utilizes the spare CPU cycles of your computer that would otherwise go unused. Combine your CPU power with that of thousands of other computers around the world, and you have a very powerful prime finding computer. Anyone with a computer and an Internet connection can participate.
PrimeGrid's primary goal is to bring the excitement of prime finding to the everyday computer user. By simply downloading/installing BOINC and attaching to the PrimeGrid project, users can choose from a variety of prime forms to search. With a little patience, you may find a large prime or even a record prime and enter into Chris Caldwell's The Largest Known Primes Database as a Titan!
History
On 12 June 2005, at approximately 14:00 UTC, Message@Home (now PrimeGrid) opened account creation to 50 users. It was being run on Rytis home laptop. :)
Message@Home was developed as a test project for PerlBOINC, an attempt to implement the BOINC server system in the Perl programming language in order to bring BOINC server software to Windows. With the primary focus on PerlBOINC, a project was needed that provided a short WU with a standard consistent result.
The first project was Message7, and it attempted by brute-force to recover a message encoded with the md5 algorithm. The message was split into parts of 7 symbols of length, and each part was encoded with md5.
In August 2005, the RSA 640 Factoring Challenge application was added. Similar to Message7, this was an attempt by brute-force to factor the 640 digit RSA number. The Message7 application was discontinued.
On 1 September 2005, after a short contest to select a new project name, the PrimeGrid name was chosen from a variation of PrimeGrid@Home submitted by Heffed. He was awarded 999 cobblestones for his submission. :)
By November 2005, another effort factored the RSA 640 Challenge so PrimeGrid moved on to the RSA 768 Factoring Challenge. While the chances of solving the challenge remained infinitesimally small, it allowed for further development of PerlBOINC.
In March 2006, RSA 768 Factoring was abandoned for a new application, primegen. It was an attempt to build a sequential prime number database bring PrimeGrid for the first time to the prime finding arena. The secondary goal was to also use this to help with the RSA Factoring Challenges. However, it was soon revealed that this effort too had an infinitesimally small chance of succeeding. Nevertheless, it provided a short WU with a standard consistent result which allowed for further development of PerlBOINC. However, the search for a computing-time worthy application was started.
In June 2006, dialog started with Riesel Sieve to bring their project to the BOINC community. Rytis provided PerlBOINC support and RS was successful in implementing their sieve as well as a prime finding (LLR) application. With collaboration from RS, PrimeGrid was able to implement the LLR application in partnership with another prime finding project, Twin Prime Search. In November 2006, the TPS LLR application was officially released at PrimeGrid. Less than two months later, January 2007, the record twin was found by the original manual project. PrimeGrid and TPS then advanced their search for even larger twin primes.
The summer of 2007 was very active as the Cullen and Woodall prime searches were launched. In the Fall, more prime searches were add through partnerships with the Prime Sierpinski Problem and 321 projects. Additionally, two sieves were added: the Prime Sierpinski Problem combined sieve which includes supporting the Seventeen or Bust sieve; and the combined Cullen/Woodall sieve.
Also in the Fall, PrimeGrid migrated some of its systems from PerlBOINC to standard BOINC software. However, many of the services are still remain based on PerlBOINC.
To date, PrimeGrid has directly found two Mega Primes. Additionally, it has advanced the PSP and SoB combined sieve by several years. PrimeGrid has also added a Challenge Series which is proving to be quite fun and exciting to watch.
The immediate future direction of PrimeGrid involves adding more variety to its prime searches as can be seen in the Project Staging Area: Sophie Germain Search (on a quad sieve), 32+1, Proth Prime Search, and generalized Cullen/Woodall searches. Additionally, an Arithmetic Progression (AP26) of length 26 is being investigated. As for the long term future, that remains to be seen.
Timeline of Events and Milestones
(We would like to create an extensive timeline. Again, please PM me with your suggestions, improvements, corrections, etc.)
12 June 2005 Message@Home goes live with the Message7 application by opening account creation to 50 users
30 Jul 2005 Rytis buys his first car, a 1997 Renault Megane
August 2005 - the RSA 640 Factoring Challenge application is added and the Message7 application is discontinued
01 September 2005 - Message@Home changes name to PrimeGrid
November 2005 - the RSA 768 Factoring Challenge application is added and the RSA 640 Factoring Challenge application is discontinued
March 2006 - the primegen application is added and the RSA 768 Factoring Challenge application is discontinued
26 November 2006 TPS LLR application is added
15 January 2007 - Eric Vautier of France finds a record twin prime through the manual TPS effort (2003663613*2^195000-1 and 2003663613*2^195000+1)
July 2007 - Woodall LLR application is added
August 2007 - Cullen LLR application is added
04 Aug 2007 - Lasse Mejling Andersen of Denmark finds a record Woodall Prime (2013992*2^2013992-1)
13 Aug 2007 - Stephen Kohlman of Canada finds a record Woodall Prime (2367906*2^2367906-1)
29 September 2007 Combined Cullen/Woodall sieve application is added
13 October 2007 PSP sieve application is added
18 November 2007 321 LLR application is added
11 December 2007 PSP LLR application is added
21 Dec 2007 - Matthew J. Thompson of the United States finds a record Woodall Mega Prime (3752948*2^3752948-1)
29 January 2008 Rytis buys his second car, 2002 Peugeot 307 2.0HDi, 79kw engine
23 Mar 2008 Dylan Bennett of Canada finds a 321 Mega Prime (3*2^4235414-1)
13 April 2008 Project Staging Area added to help facilitate new prime searches into BOINC production
* 10 May 2008 - the primegen application is archived
Milestones
Users
June 2005 - 50 users
July 2005 - 100 users
October 2005 - 500 users
December 2005 - 1000 users
July 2006 - 2000 users
May 2007 - 5000 users
December 2007 - 10,000 users
BOINC Credit
July 2005 - 100,000 cobblestones
August 2005 - 200,000 cobblestones
September 2005 - 500,000 cobblestones
October 2005 - 1,000,000 cobblestones
November 2005 - 2,000,000 cobblestones
December 2005 - 5,000,000 cobblestones
May 2006 - 10,000,000 cobblestones
November 2006 - 20,000,000 cobblestones
July 2007 - 50,000,000 cobblestones
December 2007 - 100,000,000 cobblestones
May 2008 - 200,000,000 cobblestones
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