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March 2010
Edition |
Supporting BOINC Distributed Computing Projects |
Founded
24 March 2005 |
Your Newsletter
By Top Viking - March 2010
Edition
As Team SETI.USA approaches our 5th Anniversary, a new
Newsletter is born. As Editor, I appreciate the
opportunity you have given me. Our goal is to publish a fun,
informative and dynamic Team Newsletter. The new NL Motto is
'For The Team, By The Team, With The Team'. Everything we
publish will be from that perspective.
I would like to express my thanks to Editor Emeritus
SargeD, who has faithfully served the Team and
published the Newsletter for many years. Sarge has agreed to
stay on the NL Staff. In his new role, Sarge will write regular articles
for the Newsletter & act as senior adviser to the NL Staff.
We have given the 'old gal' a facelift, with a new look
and some new content. Don't Panic! The regular Monthly Features
are still available. We are developing additional features,
so stay tuned & thank you for your suggestions.
This is Your Newsletter. Please let us know what you think.
Top Viking Sends, Regards... |
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Team Newsletter Staff
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Editor in Chief: |
Top Viking |
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Editor Emeritus: |
SargeD |
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Staff Writers: |
Orion, DCushing, Maxwell,
BeerDrinker, Denton, Fire$torm |
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Guest
Articles: |
Mr. Hankey, Trigggl,
Dr.Bob,
Mr. Lumu, The Myth Busters |
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Stats Graphic: |
Dr. Bob |
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Data Sets: |
Solarwinds |
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Team 1st Place |
Teeth & Claws & Victory, Oh My!
Congratulations Tiger Team -
We had a resounding victory in the 2010 Year of the
Tiger PrimeGrid Challenge. This was the first challenge in the
year-long 2010 Prime Grid Challenge Series. This is also
our 2nd consecutive Prime Grid Victory following our
win in the 2009 Winter Solstice Challenge.
We have several articles on PrimeGrid
in this
edition. |
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Year of the Tiger - Victory!
Written By DCushing - March 2010
Edition |
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The results are final. Cupid and
the Tiger ravaged the primes - bringing in an unprecedented 110 new
primes to the
Prime Pages
with over half of those making it into the Top 1000. Over 2 Million
Tasks (1 Million Work Units) were completed during the Tiger Challenge,
resulting in over 23 Million cobblestones awarded. This is an astounding
amount of work done for an LLR Challenge.
Congratulations to Team
SETI.USA
as the top team and to
Mr.
Hankey (of Team SETI.USA)
as the top individual.
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Year of the Tiger - Team Results
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Rank |
Team Name |
BOINC Score |
PG Points |
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01 |
SETI.USA |
4414145.91 |
312.50 |
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02 |
SETI.Germany |
2519413.72 |
287.50 |
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03 |
GPU Force |
1590052.79 |
268.75 |
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04 |
BOINCStats |
1186850.05 |
250.00 |
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05 |
Team 2ch |
1015168.02 |
231.25 |
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06 |
Sicituradastra. |
968942.60 |
218.75 |
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07 |
PBToyz |
964231.87 |
206.25 |
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08 |
US Navy |
858417.89 |
193.75 |
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09 |
Xtrem Team BOINC
Addicted |
855866.26 |
181.25 |
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10 |
Ukraine |
762470.70 |
168.75 |
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Congratulations Tiger
Team! |
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Beware The Ides of March...
Written By
Mr. Hankey - March 2010 Edition |
Time to gear up for the next challenge in
the PrimeGrid 2010 Challenge Series! SETI.USA wants to win
the entire series for 2010 and this is the second contest of
nine in the year. We took first place in the last challenge
(Year of the Tiger), can we continue our success into
challenge number two? Join us for the challenge and find
out.
To participate in the Challenge, please select only the
Prime Sierpinski Project (Sieve) project in your PrimeGrid
preferences section. The challenge will begin 15 March 2010
18:00 UTC and end 16 March 2010 18:00 UTC. Application
builds are available for MacIntel, Linux 32 & 64 bit and
Windows 32 & 64 bit. Note: 64 bit builds benefit from a 1.7X
speed advantage over 32 bit...so 1.7X the credit. :)
Recommendation: The PSP (Sieve) application requires a one
time download of a 10MB sieve file. Please consider running
a few PSP WU's before the Challenge begins so your client
will already have the sieve file. This way, bandwidth can be
used to deliver WU's instead of the sieve file.
For more general information see the Prime Grid - Ides of
March Forum here:
PrimeGrid Forum.
For detailed members only help & strategy information, join
us on the SETI.USA message board here:
I hope you will join us for this fun event and help SETI.USA
kick some ass!
Preferences
for this Project: PrimeGrid Preferences -
PSP/SoB (Sieve) Yes
PSP Sieve = Prime
Sierpinski Project - SoB = Seventeen or Bust
(Sieve) |
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2010
Prime Grid Challenge Schedule
Written By DCushing - March 2010
Edition |
| The Prime Grid Challenge Series is an annual
competition based on the results of monthly or bi-monthly
challenges. The purpose of the Challenge is to spotlight a specific
project within PrimeGrid's family of projects as well as to offer a
little healthy competition for PrimeGrid's participants. It is
also an opportunity for people to learn more about each specific
project and have fun doing it. Below is a tentative
schedule for 2010. |
| # |
Date |
Time UTC |
Project |
Challenge
Name |
Duration |
Team Rank |
| 1 |
14-17 February |
18:00 UTC |
Proth Prime
Search (PPS) |
Year of the Tiger |
3 Days |
1st Place |
| 2 |
15 March |
18:00 UTC |
PSP Sieve |
Ides Of
March |
24 Hours
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| 3 |
22 - 30 April |
18:00 UTC |
321 LLR |
Earth Day |
8 Days |
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| 4 |
16 - 21 June |
11:28 UTC |
AP26 - AP26 GPU |
PG Birth Day |
5 Days
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| 5 |
25 July |
18:00 UTC |
PPSE LLR |
Full Moon |
24 Hours |
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| 6 |
20 - 22 August |
18:00 UTC |
321 Sieve |
Dog Days of Summer |
2 Days |
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| 7 |
24 Sep - 7 Oct |
18:00 UTC |
PSP LLR |
Calendula |
13 Days |
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| 8 |
17 November |
18:00 UTC |
SGS LLR |
Leonids |
24 Hours |
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| 9 |
18-21 December |
23:38 UTC |
PPSE |
Winter Solstice |
3 Days |
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Please Note: All Times UTC (Universal Time Coordinated) -
The World Clock - Time Zone Converter
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Prime Finders – You do the Math
Written By DCushing - March 2010
Edition |
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As the team participates in the
2010 Prime Grid Challenge, you are doing the math. For Prime Grid, we
are processing the mathematical computations used for finding new prime
numbers. In February 2010, Team members found 16 new megaprimes.
Here is the list of SETI.USA Team Members finding new primes in February 2010
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| Team Member |
Primes |
Prime Project |
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SETI.USA Cluster |
2 |
Proth Prime Search (PPS) |
| Top Viking
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1 |
Proth Prime Search (PPS) |
| Slicker |
1 |
Arithmetic Progression AP24 |
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Solarwinds |
1 |
Proth Prime Search (PPS) |
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Ifogle |
1 |
Proth Prime Search (PPS) |
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Mr.
Hankey |
2 |
Proth Prime Search (PPS) |
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Farscape |
1 |
Proth Prime Search (PPS) |
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dcushing |
1 |
Proth Prime Search (PPS) |
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NjCans |
2 |
Proth Prime Search (PPS) |
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Short232 |
2 |
Proth Prime Search (PPS) |
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Teratoma |
1 |
Proth Prime Search (PPS) |
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John
R Bailey |
1 |
Proth Prime Search (PPS) |
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Mumps |
1 |
Proth Prime Search (PPS) |
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What is a Prime
Number?A prime number is a positive integer that has exactly two
positive integer factors, 1 and itself. For example, if we list
the factors of 28, we have 1, 2, 4, 7, 14, and 28. That's six
factors. If we list the factors of 29, we only have 1 and 29.
That's two factors. So 29 is a prime number, but 28 isn't.
Prime
numbers have exactly two factors. When a number has more than two factors it
is called a composite number.
Here are the first few prime numbers:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31,
37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83,
89, 97, 101, 103, 107, 109, 113, 127, 131, 137,
139, 149, 151, 157, 163, 167, 173, 179, 181,
191, 193, 197, 199. |
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| A megaprime found during
the Year of the Tiger Challenge is the
Decimal representation for 605*2^736625+1.
For the decimal
representation of 605*2^736625+1
(written in long form) Click That:
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It's About
Prime
From The PrimeGrid Web |
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PrimeGrid's
primary goal is to bring the excitement of prime
finding to the everyday computer user.
PrimeGrid's
secondary goal is to provide relevant educational
materials about primes. Additionally, we wish to
contribute to the field of mathematics.
Lastly, prime numbers play a central role in the
cryptographic systems which are used for computer
security. Through the study of prime numbers it can
be shown how much processing is required to crack an
encryption code and thus to determine whether
current security schemes are sufficiently secure.
PrimeGrid is on the web at URL:
http://www.PrimeGrid.com
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What Are They Doing
With My Computer? PrimeGrid uses your
computer to search for and to then confirm
new Megaprimes.
Megaprime:
From Wikipedia:
http://en.wikipedia.org/wiki/Megaprime
A megaprime is a prime number with at least
1,000,000 decimal digits (whereas titanic prime is
a prime number with at least 1,000 digits, and
gigantic prime has at least 10,000 digits). As of
November 2009, 26 megaprimes are known. The first to
be found was the Mersenne prime 26972593−1 with
2,098,960 digits, discovered in 1999 by Nayan
Hajratwala, a participant in the distributed
computing project GIMPS. The term bevaprime has also
been proposed as a term for a prime with at least
1,000,000,000 digits.
About Waclaw
Sierpinski & The Sierpinski
Problem
Waclaw Franciszek Sierpinski: Born 14 March 1882
- Died 21 October 1969, Sierpinski was a Polish
mathematician, that is known for outstanding
contributions to set theory, number theory,
theory of functions and topology. In
number theory, a
Sierpinski number is an odd
natural number k
such that integers of the form k2n
+ 1 are composite
(i.e. not prime)
for all natural numbers n.
In other words, when k
is a Sierpinski number, all members of the
following set are
composite:
Numbers in this set with odd k and k < 2n
are called
Proth Numbers.
In
1960
Waclaw Sierpiński
proved that there are
infinitely many odd
integers that when used as k
produce no primes.
The Sierpinski problem is
- What is the smallest Sierpinski number - and the
prime Sierpinski problem is - What is the
smallest 'prime' Sierpinski number?
Prime Grid uses your computer to process the
mathematical calculations used to identify such
numbers. |
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The Quote of the Month
Submitted By Orion - March 2010 Edition |
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We cannot defend freedom abroad by deserting it at home.
- Edward R. Murrow (1908-1965)
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