News and Articles
Upcoming Projects Recently Completed Projects Past Projects
Tools Development Platforms Conferences Parody and Fun Sites Links Politics
Teams Books and Journals FAQ Link to Us
|Active Distributed Computing Projects - Science|
These links take you to other project categories on this site:|
Mathematics Art Puzzles/Games Miscellaneous Distributed Human Projects
Collaborative Knowledge Bases Charity
See the bottom of this page for a description of the icons on the page.
|Project Information||Project % Complete||Major Supported Platforms|
Search for extra-terrestrial radio signals at
Note: This project is the new SETI@home, based on the BOINC platform Classic SETI@home is listed below. Classic SETI@home will be active for a while as users transition to the new SETI@home. Users are encouraged to migrate to the new SETI@home. User accounts have been migrated from Classic SETI@home to the new SETI@home, but users must activate them before they can use them. All user and team stats in the new SETI@home have been reset to 0. Read more about the transition.
See the BOINC platform information for the latest version of the BOINC client. Version 4.08 of the SETI@home application (which runs inside the BOINC client) is available for Windows as of November 19, 2004. Version 4.02 is available for Linux, Mac OSX and Solaris as of August 29, 2004.
See a guide for customizing the SETI@Home BOINC client graphics, and unsupported add-on tools available for the client. See information about porting and optimizing the BOINC SETI@home client. See a Powerpoint slide presentation about Berkeley Open Infrastructure for Network Computing (BOINC), the open-source software architecture used for the new SETI@home. These slides were used for a presentation at the 2002 O'Reilly Emerging Technology Conference.
See the status of the project servers.
View the new SETI@home discussion forum.
Search for extra-terrestrial radio signals at
Note: This project is the Classic SETI@home. Users should participate in the new SETI@home project listed above. The new SETI@home project is active as of June 22, 2004. Classic SETI@home will be active for a while as users transition to the new SETI@home. User accounts have been migrated from Classic SETI@home to the new SETI@home, but users must activate them before they can use them. Read more about the transition.
Version 3.08 of the classic client is available for most platforms as of April 4, 2003. Version 3.08a is available for Mac OSX as of March 25, 2004: it "fixes screensaver problems under Mac OS 10.3.x." The latest newsletter, #22 ("SETI@home Reobservation Report"), was published April 28, 2004. The latest technical news report was published May 5, 2004. A Glossary of Concepts is available to explain the project's unique terminology. The project is also mapping the distribution of hydrogen in our galaxy. See the project's most promising signal candidates. See pictures of the Arecibo telescope from the SETI@Home team's March, 2003 visit. The project had its 5th birthday on May 18, 2004.
On April 4, 2003, a security hole was found in the SETI@home client and reported to the SETI@home team. Version 3.08 of the client, which fixes the security hole, is available for most platforms. On November 14, 2003, the project reported that one or more viruses/worms may be circulating on the Internet and installing SETI@home on infected computers. It has a page with more information.
SETI@Home is the largest public distributed computing project in terms of computing power: on September 26, 2001 it reached the ZettaFLOP (1021 floating point operations) mark--a new world record--performing calculations at an average of 71 TeraFLOPs/second. For comparison, the fastest individual computer in the world is IBM's ASCI White, which runs at 12.3 TeraFLOPs/second. On June 1, 2002, the project completed over 1 million CPU years of computation. On August 19, 2003, the project processed its 1 billionth work unit.
As of June 14, 2002, the project has found 3.2 billion spikes and 266 million Gaussians. See the best candidate signals found so far.
Check the status of the SETI@home data server and tapes.
View derived statistics for SETI@home.
Get answers to all of your SETI@home questions in the SETI@home FAQ.
View the Classic SETI@home discussion forum.
Read a short research paper, written in 1998, about the origins of SETI and SETI@home.
See a RealPlayer Video interview that Dr. David Anderson gave to CERN's GridCafe on April 30, 2004. The interview lasts 6.5 minutes. See an August 19, 2004, interview of Dan Werthimer, director of the SERENDIP SETI program and chief scientist of SETI@home, by Astroseti.org. Hear a December 6, 2004, interview of David Anderson by Planetary Radio.
1,680,253,315 work units processed
is a grand-challenge computation research
program to study evolution. The first simulator for the project "helps
uncover potential genetic causes of extinction for endangered and
not-yet-endangered species by investigating Mullers Ratchet. Your help to
improve understanding of such genomic decay might one day be used to fight it."
As of October 24, 2002, more than 16.3 years of CPU time have been contributed
to the project.
On October 24, 2002, Laurence Loewe published the first scientific paper, "evolution@home: Experiences with work units that span more than 7 orders of magnitude in computational complexity," based on the results of the project. This paper was presented at CCGrid 2002 in May, 2002.
To participate, download the client, then select a run-file based on the amount of RAM you can dedicate to the application and the amount of time you want the application to run, then run the application and email the results file. See more information about the client in an overview. Release 6, for Windows and Macintosh, is available as of October 7, 2002. Please upgrade to this version if you are using an older version. Scheduling session 7 of the run-files is available as of March 27, 2003.
evolution@home GUI, a third-party tool, provides a graphical interface for the semi-automated version of the evolution@home client.
See high scores for the project.
Join an unofficial discussion forum about the project.
An old version of the site is available in German.
313,612.4 billion individuals observed in 36.4 years of CPU time since mid-March, 2003
Help research techniques for "calculating the long time
dynamics of systems" in the
From the website: "A common problem in theoretical chemistry, condensed matter
physics and materials science is the calculation of the time evolution of an
atomic scale system where, for example, chemical reactions and/or diffusion
occur." Interesting events occur so rarely that they can only be observed
in direct simulations by using a distributed computing environment. See
a brief scientific
overview for a more detailed description of this problem. The project
works in a similar way to
Folding@Home in that results from one set of work units are used to
generate the next set of work units. Unlike Folding@Home, it is not critical
if some users don't return the results of their work units within a time
limit or at all. The current project studies ice growth.
The application is built on the Fida and Mithral distributed computing platforms. The Windows client can run as a screensaver (which doesn't show any information about what it's doing), or as a command-line client (run the client.exe executable in the installed directory). Note that although you have the option to install the client in any directory, the screensaver expects it to be installed in C:\Program Files\UW Chemistry\ Eon (this bug will be fixed soon). The Linux client is command-line only. The application supports users behind proxy servers. Edit the client.cfg file: change active to yes, and add your proxy server hostname and port number. Note: on Windows, only use notepad to edit client.cfg. wordpad and the DOS edit command strip off important end-of-line characters in the file and client.exe will reset it to its default values. In dtpad you will see an empty rectangle character after each field: this is the end-of-line character and it must not be removed. http://www.free-dc.org/forum/forumdisplay.php?s=&forumid=59
|ongoing: 7,955,846 total results
136 years, 224 days total time
Earth's climate 50 years from now. The project uses a large-scale
Monte Carlo simulation to predict what the climate will do in the future.
On June 22, 2004, the project began a new phase of its experiment, to study
"Thermohaline Circulation (THC) slowdown," or how climate might change as
CO2 changes in the event of a decrease in the strength of the
This kind of climate change is shown in the movie
The Day After Tomorrow.
Participants can choose between running the old or the new experiment. See
results of this experiment (posted July 28, 2004).
The first climate models for a full 45-year beta-test simulation were
successfully completed on March 6, 2003. The project received its 5,000th
result on November 7, 2003. See some
and abnormal results. In the 3 months after the project launch, it
achieved: 9,796 completed full runs, 882,272 modelled years, 43,548
registered users, and the web site was translated into 14 languages. By April
6, 2004, the project completed 1.5 million years of simulation in over
22,000 runs. By July 5, 2004, the project completed 2 million years of
simulation in over 30,000 runs. By October 18, 2004, the project completed 3
million years of simulation in over 40,000 runs. By December 14, 2004, the
project completed 50,000 runs. The project began supporting
a BOINC-based client on August 26,
2004. The project turned 1 on September 14, 2004: by that date "78,000
people in over 130 countries had completed 35,000 45-year GCM runs, computed
2.5 million model years and donated 6,000 years of computing time." On
September 17, 2004, a book
about using new technologies to sustain and protect natural ecosystems was released: chapter 12 of the book is about climateprediction.net and was written by
several climateprediction.net team members.
The project clients have some large requirements. In particular, one work
unit will take up to 6 weeks to complete on a 1.4 GHz CPU. Please study
the requirements on the
page before downloading the clients, and please do not download the clients
if you are not willing to commit to completing a work unit. The classic client
runs as a graphical application (GUI) or as a service. The
BOINC-based client is similar to
other BOINC-based clients. See the
BOINC platform information for the latest version of the BOINC client.
The clients support users behind firewalls and proxy servers (see
page for details for the classic client). Users may run either client,
but new features will only be added to the BOINC-based client. Version
2.2.28 of the classic client is available for Windows as of February 13,
2004: it adds some new features and fixes some bugs from previous versions.
See the BOINC platform
information for the latest version of the BOINC client. The BOINC client is
available for Windows, Linux, and Mac OSX. Note: On February 4,
2004, the project
announced that Microsoft Internet Explorer Security path (IE Update
KB832894) prevents the classic climateprediction.net client from uploading or
"trickling" results. A patch is being developed for that client.
visualization package is available for some Windows platforms as of
July 15, 2004. Also, Windows users with Photoshop can download a Photoshop
a 3D model of their simulation results.
Students and teachers can access
resources for the project.
Join a discussion forum for this project.
The project clients have some large requirements. In particular, one work unit will take up to 6 weeks to complete on a 1.4 GHz CPU. Please study the requirements on the download page before downloading the clients, and please do not download the clients if you are not willing to commit to completing a work unit. The classic client runs as a graphical application (GUI) or as a service. The BOINC-based client is similar to other BOINC-based clients. See the BOINC platform information for the latest version of the BOINC client. The clients support users behind firewalls and proxy servers (see this page for details for the classic client). Users may run either client, but new features will only be added to the BOINC-based client. Version 2.2.28 of the classic client is available for Windows as of February 13, 2004: it adds some new features and fixes some bugs from previous versions. See the BOINC platform information for the latest version of the BOINC client. The BOINC client is available for Windows, Linux, and Mac OSX. Note: On February 4, 2004, the project announced that Microsoft Internet Explorer Security path (IE Update KB832894) prevents the classic climateprediction.net client from uploading or "trickling" results. A patch is being developed for that client.
An advanced visualization package is available for some Windows platforms as of July 15, 2004. Also, Windows users with Photoshop can download a Photoshop plug-in to make a 3D model of their simulation results.
Students and teachers can access school resources for the project.
Join a discussion forum for this project.
3.9 million model years completed;
52,065 standard runs completed;
2,214 THC-slowdown runs completed;
177,228,311 cobblestones (12,577 BOINC runs) completed
Help design a more efficient particle accelerator in
Particle Accelerator Design project. The project "simulates the
pion-to-muon decay channel (grey cylinders surrounding a straight blue path)
of the RAL Neutrino Factory front end design. This is different to the
previous versions of the solenoid-channel-only optimisation because it varies
all parameters of the solenoids independently of one another. The bending
chicane featured in versions 4.0-4.2x will be replaced by a linear accelerator
and a muon 'cooling ring' in version 5."
See technical reports and papers from this project.
The client does not need to contact a project server to get work. It submits results via ftp whenever it accumulates more than 100 Kbytes of results. The software also includes a separate ftp client which you can use to submit results manually. The Windows version of the client can be run as a screen-saver or from the command-line. Version 4.41f of the client is available for Windows as of October 18, 2004. Debugging version 4.41g of client is available as of November 6. This version should be tried by users of the 4.41f version if the 4.41f client crashes or stops. Version 4.33 and later can be run under Linux using Wine.
Join a discussion forum about the project.
Help "assemble a powerful, predictive electronic
atlas of Earth's biological diversity" in
Lifemapper. In this project,
sponsored by the Informatics Biodiversity Research Center at
The University of Kansas, Participants
"compute, map and provide knowledge of" where Earth's species of plants and
animals live currently, where they could potentially live, and where and how
they could spread across different regions of the world. See a
paper about this project.
Note: this project will end around January 1, 2005. Volunteers should choose a different project to participate in.
Results of the project will be used "for biodiversity research, education and conservation worldwide, especially to forecast environmental events and inform public policy with leading-edge science."
Anyone can access data and results from the project via the following services:
To participate in the project, register for an account through the project, then download the graphical/screensaver or command-line client application. The client is available for Windows and Linux. The graphical version of the client "shows some information on the registered user that is running the application, what species is being processed at that time, a map displaying preliminary results found so far, as well as general information and messages downloaded from [the project] servers." The text version displays similar information in text messages: it runs somewhat faster because it doesn't have to display graphics. The text version of the client supports work unit caching, and keeps processing while downloading new work units or uploading results. The graphical version of the client will have this feature soon. The client supports users behind firewalls (it uses HTTP protocol and port 80), but does not support users behind proxy servers. Version 1.0.01 of the graphical client is available as of June 3, 2003. Version 1.0.03 of the command-line client is available for Windows as of February 26, 2004. Version 1.0.02 of the text client is available for beta testing on Linux as of November 19, 2003 and for beta testing on Mac OS X as of January 5, 2004.
Join an unofficial discussion group about this project.
159,279 species collected
84,242 species mapped
Help design the next generation of self-diagnosing
computer circuits in the
Distributed Hardware Evolution Project. The project client evolves
populations of individual computer circuits with Built-In Self-Test (BIST,
a way for a circuit to detect whether it is producing results correctly)
and then migrates the circuits to other project clients to compete with
their circuit populations. Self-diagnosing circuits are important to
mission-critical systems exposed to radiation, but 40 years of conventional
research has not created significant improvements in these circuits.
From the project owner: "As an increasing number of mission critical tasks are automated, self-checking circuits are of paramount importance. For example in medical applications (heart monitors, pacemakers), transport (aeroplane hardware, traffic lights, car ABS braking), space (satellites, probes) and industrial facilites (nuclear power plants) and more to come in the future as cars start driving themselves, surgical operations are performed remotely, etc.. In all these areas human lives or great economic loss are at risk.
"The circuits produced by this projects are truly better than those of conventional design so would lead to safer controllers in all these applications saving lives and money."
On October 1, 2004, the project successfully evolved a large number "of circuits with full concurrent error detection using only 14% of the overhead required by the conventional approach," and began evolving a new generation of circuits "as big as those used in industry, many of them using hundreds of gates." On October 14, 2004, circuits and overhead figures from the project "were presented to experts in the self-checking field at the International On-Line Testing Symposium IOLTS 2004. One expert said DHEP may be the best method to design self-checking circuits."
The project uses Genetic Algorithms and Evolutionary Strategies to design improved circuits. Source code and documentation for the project are available for download.
To participate in the project, download and install the Java-based client and follow the directions on the website for configuring it for Linux/Unix or Windows. The client supports users behind firewalls or proxy servers, if those users have access to a SOCKS4 or SOCKS5 proxy: see setup instructions in the project website's FAQ/troubleshooting section. The client supports modem-users (your circuit population will only migrate when you are connected to the Internet, but will continue evolving whether or not you are connected).
See the project's current goal.
See the project's results so far.
Join a discussion forum about the project.
319,322,811,786 circuits evaluated
Collider (LHC), a particle accelerator being built by
CERN in Geneva, Switzerland. LHC@home
"simulates 60 particles at a time as they travel around the ring, and runs the
simulation for 100,000 loops around the ring ... to test whether the beam is
going to remain on a stable orbit for a much longer time, or risks losing
control and flying off course into the walls of the vacuum tube - a very
serious problem that could result in the machine being stopped for repairs
if it happens in real life. By repeating such calculations thousands of times,
it is possible to map out the conditions under which the beam should be
The project released its first status report on November 3, 2004. It successfully completed over 500,000 jobs by that date, with the help of 6,000 registered users and 7,500 active computers. It released its second status report on December 7, 2004. The project is officially shut down until the new project servers are available in early 2005.
The project uses a BOINC-based client, which runs an application called SixTrack. See the BOINC platform information for the latest version of the BOINC client. SixTrack's graphical screensaver displays a cross-section of the beam of particles that SixTrack is simulating. Version 4.47 of application is available for Windows as of October 26, 2004 and for Linux as of September 27, 2004. Linux users with NFS-mounted work directories should read the Known Bugs for the client.
Join a discussion forum about the project.
|on hold until early 2005;
|The following icons may appear in the Supported Platforms section of the table:|