Einstein@Home

Join Einstein@Home

• Rules and policies [read this first]
• Getting started
• Create account

Returning participants

• Your account - view stats, modify preferences
• Teams - create or join a team
• Download BOINC [Use version 4.19 or greater!]
• BOINC Add-ons
• http://einstein.phys.uwm.edu/apps.php

Community

• Participant profiles
• Message boards
• Questions and problems

Project totals and leader boards

• Top participants
• Top computers
• Top teams
• Other statistics

More Information

• http://einstein.phys.uwm.edu/international.php
• http://einstein.phys.uwm.edu/contributors.php
• Server Status
• Screensaver description

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Thank you for your interest in Einstein@home!

Einstein@home is a program that uses your computer's idle time to search for spinning neutron stars (also called pulsars) using data from the LIGO and GEO gravitational wave detectors. We plan to deploy a production version of Einstein@home as part of the American Physical Society's World Year of Physics 2005 activities.

We are very close to deploying Einstein@home on a larger scale, but must complete final testing and tuning before 'throwing open the doors'. Until this testing is complete, we are only accepting a limited number of users, who have indicated an interest in helping. If you would like to register as a test user, please go to the APS WYP 2005 Page. Testers: please use the Questions and Problems Forum to provide feedback on any problems that you observe.

This first production run of Einstein@home carries out a search for pulsars over the entire sky, using the most sensitive 600 hours of data from LIGO's third science run, S3.

Bruce Allen, Professor of Physics, U. of Wisconsin - Milwaukee
Einstein@home Leader for the LIGO Scientific Collaboration

Some additional 'paranoia checks' added into the 4.75-4.77 applications identified an important bug in the central LALDemod() routine of the analysis code. (PoorBoy: your lost workunits were not in vain!). The maximum velocity of our detector (as the earth orbits the sun and rotates on its axis) is about 1% larger than the code allowed for, so for certain data sets and sky directions, a frequency array was one bin smaller than required. This has been fixed, and new applications (4.78, 4.79, 4.80) are now being distributed.

New applications are now available for Windows (4.75) Linux (4.76) and Mac (4.77). These should resolve the 'hanging workunit' problems described below. They also incorporate several other fixes and improvements. NOTE: if you start to experience 'download' related errors, be SURE to upgrade your (public) BOINC core client to version 4.19 or your (experimental) BOINC core client to version 4.59 or greater..

The LIGO Scientific Collaboration Calibration Team has released the final (v3) calibration information for the S3 data run. In the next several days we will be replacing our current search data set (which uses the v2 calibration) with the v3 version.

A BOINC bug in the scheduler meant that for a period of about 10 hours users got server messages saying 'low' and 'high' (rather than the actual message)! This has been fixed.

News is available as an RSS feed.