
	Where results make sense

Topic: PiHex

Related Topics

Pi

Feynman point

Project Gutenberg

Boobah

Society of Physics Students

Ukrainian alphabet

Numerical digit

WaterAid

Physicist

Eight Immortals from Sichuan

Leonhard Euler

Yerf

Jan Wolkers

Soyuz 39

Jonathan Cape

	SoftWhere - Collaborative Computing Projects!
		PiHex is both the overall project and the program you download, which is, strictly speaking, the PiHex client.
		PiHex (the project) is a distributed computing project using idle time slices on computers scattered around the world to calculate specific bits of Pi without computing all the previous bits.
		PiHex subdivides the assigned range into smaller sub-ranges, and writes the sum of each subrange to the output file when it completes, so if your computer crashes at some point, PiHex might lose half an hour of work, but it should be able to restart without any problems.
	hammer.prohosting.com /~wherenet/projects.shtml (903 words)

	JC's: Distributed Computing: Calculating Pi (Site not responding. Last check: 2007-11-04)
		Calculating Pi PiHex uses Bellard's Formula to calculate the value of pi (eg, that number that starts with "3.1415926535", it's the circumference of a circle divided by its diameter, and possibly -2i*ln[i], but I might have totally screwed up my figuring there, so don't take my word for it).
		The creator of PiHex has prominently displayed press releases hailing the discovery of the five trillionth and forty trillionth bits of pi.
		PiHex (like its inspiration, GIMPS) is perhaps a bit nicer than distributed projects like rc5 and SETI@home in that we have a good idea where it's going to end.
	www.jc-news.com /pc/parse.cgi?distributed/pihex (371 words)

	DCCentral [Mathematical Projects]
		The PiHex project was one of the first successful distributed computing projects on the internet.
		To date, the PiHex project has discovered that the five trillionth and forty trillionth bits of pi are 0, in Hexadecimal format.
		That leaves room for error: the PiHex project was set back because some users accidentally deleted data from a log that they shouldn't have, and other users encountered overheated computer problems, which returned the data to the PiHex server with errors.
	library.thinkquest.org /C007645/english/2-math-0.htm (369 words)

	What's New
		PiHex is an example of an 'embarrassingly parallel' problem, which in english means it is really easy to distribute between computers as we have done.
		PiHex 6.0 is being betatested right now; we are still finding problems, and I am not going to release it until we fix everything.
		As long as PiHex's priority level (implemented in version 5.10) is set to something less than four, PiHex will not interfere with the SETI project screensaver, and will still get a large amount of work done.
	oldweb.cecm.sfu.ca /projects/pihex/news.html (3847 words)

	Past Distributed Computing Projects
		PiHex caluclated the quadrillionth digit of Pi (which is 0).
		The creator of the PiHex project will soon begin more complex projects at idlepower.net.
		The Internet Animation '99"was an experimental project aimed to discover how a computer 3D animationcould have been done using people from all over the world and coordinating everything using only email and a web page." You can download the movie from ifilm.
	www.angelfire.com /theforce/distributedcomputing/pp.html (1304 words)

	Chaucer Technology School - Maths: Help us Calculate Pi (Site not responding. Last check: 2007-11-04)
		PiHex is a distributed computing project, currently using idle time slices on over two hundred computers to calculate parts of Pi.
		PiHex was set up by Colin Percival, who is a 17 year-old student at Simon Fraser University.
		To take part you run the PiHex program on your computer and are allocated a section of Pi to calculate; each calculation takes about two weeks.
	www.chaucer.ac.uk /students/subjects/maths/oldwebsite/pi.htm (206 words)

	RC5 General Discussion: [RC5] Re: PiHex (Site not responding. Last check: 2007-11-04)
		PiHex is _not_ computing all the digits of Pi (up to a point, of course).
		PiHex uses the BBP algorithm and Bellard's formula to compute a small
		As a result, the memory/disk/communications overhead of PiHex is small,
	lists.distributed.net /hypermail/rc5.Jan1999/0317.html (330 words)

	PiHex - Wikipedia, the free encyclopedia
		Total resources: 1,885 computers in 80 unique countries donated 1,298,000 CPU hours.
		While the PiHex project calculated the highest number of Pi digits ever attempted in any base, second place is held by Professor Yasumasa Kanada who derived the 1.2411 trillionth digit in base 10 (which is 5).
		This page was last modified 08:33, 25 November 2006.
	en.wikipedia.org /wiki/PiHex (326 words)

	Mersenne Digest V1 #808
		This is probably a reference to the PiHex project which computed Pi to the Quadrillionth digit (I think..).
		The project is finished but I believe the site is still up at: http://www.cecm.sfu.ca/projects/pihex/pihex.html If you want to see the results or find out more.
		I assume this is made clear on their site (which I have not read in recent times).
	www.mail-archive.com /mersenne@base.com/msg05405.html (1393 words)

	DC Today - Team Ninja Bulletin Board
		April 19, 1998- PiHex launches its second project- to calculate the forty trillionth bit of pi.
		May 8, 1998- The last stub is returned to the original OGR project, and the group of 100 finds that the existing 21-mark ruler is optimal.
		September 6, 1998- PiHex begins calculations of the quadrillionth bit of pi.
	www.team-ninja.com /vbulletin/showthread.php?p=325668 (1036 words)

	[No title]
		When I stop the client, the hard drive, judging by the noise, = "deletes" everything that was written on it in those 170 byte portions, = however, the System Monitor again shows information being written or = deleted in the same amounts, of course, those amounts are now measurable = in kilobytes.
		I have yet only = reported this problem to the PiHex coordinator, and he has promissed me = to correct this bug if we succeed to discover what exactly is going on.
		I have yet only = reported=20 this problem to the PiHex coordinator, and he has promissed me to = correct this=20 bug if we succeed to discover what exactly is going on.
	www.ndatech.com /mersenne/archives/digest/v01_0353.txt (3187 words)

	PiHex was a distributed computing distributed computing project to calculate... (Site not responding. Last check: 2007-11-04)
		PiHex was a distributed computing distributed computing project to calculate...
		"PiHex" was a distributed computing distributed computing project to calculate specific bits of Pi Pi.
		A copy of the license is included in the section entitled
	www.biodatabase.de /PiHex (130 words)

	Rediff Guide to the Net: Features: The Power of You
		Not surprisingly, most voters are of opinion that there is life outside Earth, and favour government funding for research.
		The aim of PiHex was to "set three records for calculating specific bits of pi." To achieve this, they took advantage of idle time slices on almost 2,000 computers.
		Making use of Bellard's formula, they arrived at a calculation of the five trillionth bit, the forty trillionth bit, and the quadrillionth bit of Pi.
	www.rediff.com /search/2002/jan/31comp.htm (705 words)

	PiHex Credits (Site not responding. Last check: 2007-11-04)
		Peter Borwein, Loki Jorgenson, and the CECM for hosting the PiHex web pages (and not deleting them), and letting me set up an automated server for PiHex on one of their computers (as soon as I write some code for it).
		Simon Fraser University's Media and Public Relations Office, for putting together a completely non-technical (ie, somewhat comprehensible to the average person) press release about the calculation of the five trillionth bit of Pi.
		Rob Simmons of TBS Communications, who voluntered to give PiHex a "New Look" shortly after I announced finishing the 5 trillionth bit of Pi.
	oldweb.cecm.sfu.ca /projects/pihex/credits.html (355 words)

	A busy computer is a happy computer - SunWorld - July 1999
		Many of the volunteers are running the software on multiple machines, so the total amount of computing power involved is staggering, possibly exceeding a million CPUs.
		Pentium users (running either Linux or Microsoft OSs), Power Macintosh users (running Mac OS), and users of various Unix systems (if they have access to C or Fortran) can all participate.
		PiHex has already calculated the forty trillionth bit of pi and is now working on the quadrillionth bit (two trillionth hex digit).
	sunsite.uakom.sk /sunworldonline/swol-07-1999/swol-07-silicon.html (1034 words)

	Fabrice Bellard's PI page (Site not responding. Last check: 2007-11-04)
		Now the PiHex project has computed binary digits of Pi much further.
		A survey (in French) of the multiplication method: transparent.ps The complete sources of the program (in ANSI C for UNIX): pi_salamin.tar.gz
		The PiHex project by Colin Percival, a distributed effort to calculate Pi.
	fabrice.bellard.free.fr /pi (321 words)

	PiHex- A distributed effort to calculate Pi (Site not responding. Last check: 2007-11-04)
		PiHex- A distributed effort to calculate Pi Join PiHex
		The Five Trillionth Bit of Pi is '0'!
		PiHex was a distributed computing project which used idle computing power to set three records for calculating specific bits of Pi.
	oldweb.cecm.sfu.ca /projects/pihex (46 words)

	Math Forum - Ask Dr. Math (Site not responding. Last check: 2007-11-04)
		One area of mathematical interest is computing pi to as many decimals as a computer can handle.
		At PiHex - A distributed effort to calculate Pi http://www.cecm.sfu.ca/projects/pihex/ you can find various "distributed computing" projects where pi was calculated for huge numbers of decimal digits.
		One such project you will see there calculated pi up to 40 trillion decimal digits.
	mathforum.org /library/drmath/view/61247.html (353 words)

	Distributed Computing Projects
		There is not a lot of background information on his web page, but it is up to date.
		They are currently calculating the quadrillionth bit of pi.
		In addition to this exhaustive mathematical feat, "PiHex has identified two cpu bugs, four compiler bugs and one assembler bug, as well as identifying numerous buggy driver subsystems" according to the projects organizer, Colin Percival.
	jalobean.itim-cj.ro /Cursuri/Paralel/dcprojects.htm (1073 words)

	PVM (Site not responding. Last check: 2007-11-04)
		An example of this was a distributed computing project to calculate digits of PI called
		PiHex, in which over the internet seed numbers are sent to individual computers, and after each calculation set is done, the results are returned to the "master" at PiHex.
		This is an example run of the program with the resulting answer.
	www.tjhsst.edu /~dbirken/supercomp/proj3.html (271 words)

	A Busy Computer is a Happy Computer.
		Annotations supply some informative context (data recording source and time, search frequencies, etc.), making it all a bit more "real" for science groupies like me.
		Pentium users (running either Linux or Microsoft OSs), Power Macintosh users (running Mac OS), and random Unixoids (by means of C or Fortran) can all participate.
		PiHex has already calculated the forty trillionth bit of Pi and is now working on the quadrillionth bit (2 trillionth hex digit).
	www.cfcl.com /cfcl/rdm/carny/1999.07.html (808 words)

	Lending an idle cycle
		Anyone can be a winner just by donating his or her unused cycles.
		Another teenage college student is responsible for the PiHex project.
		Currently limited to Windows client machines, PiHex parcels out its work via e-mail.
	www.networkworld.com /news/1999/0301idlecycles.html (1865 words)

	PiHex - Rechenkraft
		Bei diesem Projekt wurden die Nachkommastellen von Pi (in binärer Schreibweise) berechnet.
		Nachdem 3 Rekorde aufgestellt wurden, die Berechnung des 5 billionsten, des 40 billionsten und des 1 billiardsten Nachkommabits, beendete PiHex seine Berechnungen.
		Diese Computerinformationen fragt PiHex beim ersten Start automatisch ab.
	www.rechenkraft.net /wiki/index.php?title=PiHex (85 words)

	Pi
		Bailey's website contains the derivation as well as implementations in various programming languages.
		The PiHex projct computed 64-bits around the quadrillionth bit of pi (which turns out to be 0).
		Other formulas that have been used to compute pi include:
	www.guajara.com /wiki/en/wikipedia/p/pi/pi.html (1380 words)

	Omniseek: /Computing /Parallel Computing /Internet Based /
		This project will be migrating to distributed.net soon.
		PiHex is a distributed computing project that is calculating specific parts of Pi using computers from all over the world.
		Download a screensaver to help look for extraterrestrial life.
	www.omniseek.com /srch/{2763} (167 words)

	Completed Projects (Site not responding. Last check: 2007-11-04)
		PiHex - was used to calculate specific bits of Pi - was used to decrypt a code
		Ten Primes - was used to find ten consecutive prime numbers
		Anthrax Research Project - found promising antidotes for anthrax
	www.unc.edu /~tcrutch/completed.html (37 words)

	Colin Percival's Publications (Site not responding. Last check: 2007-11-04)
		Where the published form has differed from the submitted form (for example, by the addition of journal headers), the files linked below are the "official" format of the papers whenever possible.
		Colin Percival, PiHex: The quadrillionth bit of Pi is zero, manuscript, 2000, available at http://oldweb.cecm.sfu.ca/projects/pihex/.
		Colin Percival, Rapid multiplication modulo the sum and difference of highly composite numbers, Mathematics of Computation, Volume 72, Number 241, Pages 387-395, 2002.
	www.daemonology.net /papers (276 words)

	Pierre Henri Kuaté : The power of distributed computing
		Indeed, GPUs can have a FLOPS 20 times higher than CPUs.
		Here is a list of distributed computing projects; most of them do medical research, but there are some odd ones like encryption breakers or the project PiHex which found the 40 billionth bit of Pi.
		By the way, if you have an internet connection and some idle computers, you can join one of these projects; it will cost you nothing and it will help humanity
	dotnet.org.za /kuate/archive/2006/04/25/51800.aspx (221 words)

	SF News - Sept. 10, 1998 - Math major, 17, breaks pi record (Site not responding. Last check: 2007-11-04)
		In all, the project, dubbed PiHex, took five months of real time to complete and one-and-a-half years of computer time.
		He estimates it will take 10 years of computer time to accomplish the task.
		For more technical information about PiHex, check out http://www.cecm.sfu.ca/projects/pihex
	www.sfu.ca /mediapr/sfnews/1998/sept10/percival.html (383 words)

	Internet Computing
		But it wasn't until the explosion of the Internet as a mass medium in the early 1990s that Internet computing became possible.
		The earliest Internet computing efforts were academic and known only among researchers and scientists, these projects included calculating Pi (PiHex) and cracking encryption schemes (Distributed Net).
		The project that brought Internet computing wide recognition was SETI@home.
	www.parabon.com /users/internetComputing.jsp (291 words)

Try your search on: Qwika (all wikis)