Milkyway@Home uses the BOINC platform to harness volunteered computing resources, creating a highly accurate three dimensional model of the Milky Way galaxy using data gathered by the Sloan Digital Sky Survey. This project enables research in both astroinformatics and computer science.
In computer science, the project is investigating different optimization methods which are resilient to the fault-prone, heterogeneous and asynchronous nature of Internet computing; such as evolutionary and genetic algorithms, as well as asynchronous newton methods. While in astroinformatics, Milkyway@Home is generating highly accurate three dimensional models of the Sagittarius stream, which provides knowledge about how the Milky Way galaxy was formed and how tidal tails are created when galaxies merge.
Milkyway@Home is a joint effort between Rensselaer Polytechnic Institute's departments of Computer Science and Physics, Applied Physics and Astronomy. Feel free to contact us via our forums, or email astro[at]cs.lists.rpi[dot]edu.
Already joined? Log in.
Milkway@home is funded through a grant from the National Science Foundation (NSF). Any opinions, findings, and conclusions or recommendtions expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF.
Individual grants are listed on the information page.
New Separation Runs 6/9/2021
I've just put some new separation runs up on the server. Remember those stripe 84 and 85 runs that would start to throw validate errors as they became more optimized? I've been testing and comparing runs on different builds and *hopefully* that problem has been resolved.
The names of the new runs are:
Please keep an eye on these runs and let me know if anything odd happens (validate errors or otherwise). With any luck, everything will work perfectly! These are the last runs that need to optimized before the latest results of separation can be submitted to a journal to be published.
Additionally, I have taken down the following runs:
As always, the stopped runs will continue to show up in your workunit queue for a few days as they finish up. This is normal and expected. Thank you all for your support and help with this project.
9 Jun 2021, 23:14:57 UTC · Discuss
New NBody Runs! (05/19/2021)
It's been a while, and a lot has happened! We recently sent a paper for review on the mass and radial profile of the Orphan Stream, so we should be publishing the results of our last set of optimizations within the next few months. We have also been working on the latest version of the MW@home NBody application (v1.80). The simulation now includes the Large Magellanic Cloud in our gravitational calculations, and we added the capacity for our code to fit the orbit of our progenitor dwarf galaxy simultaneously with the mass and shape. This version has been in production for a long time, and we are happy to finally move on to the next phase of our project.
These are the runs that were just put up:
This is a new version of NBody, so any old workunits will likely fail. These newer runs will (hopefully) work just fine. If you have any questions or have any issues with these new runs, please do not hesitate to ask me.
Thank you all for your continued support,
19 May 2021, 20:32:15 UTC · Discuss
Where MilkyWay@home Was The Last Few Days
On Friday, May 7th, RPI experienced a cyber-attack that forced RPI to rapidly take down their entire network. This included email, on-campus internet, and connection to the MilkyWay@home server. We were caught by surprise by the network going down, so we were unfortunately not able to warn our volunteers about this problem or shut down the server ahead of time.
We updated our social media a few times during this outage, but please understand that we did not know when service would come back up for MilkyWay@home until connection to the server actually came back up. During this time, RPI IT was working on understanding the extent of the attack, making sure that the attack did not get any worse, and setting up precautions for the future that would prevent this sort of attack. We were not in control of when the server went down or when it would go back up.
Please know that the attack did not impact Linux-based machines (such as the MilkyWay@home server). Additionally, no personal information on the website was accessed or affected by the cyber-attack.
Thank you volunteers for your patience and understanding. If you have any questions I'm happy to do my best to answer them.
17 May 2021, 20:42:23 UTC · Discuss
New Separation Runs 2/3/2021
The following Separation runs had to come down due to the server outage:
I have put up the following new runs on the server:
The skip from 4 to 7 involves me putting test runs on the server while we were debugging some of the recent problems. Please let me know when stripes 84 and 85 begin throwing validation errors and I can take those down when the errors/runs ratio reaches ~10%.
3 Feb 2021, 16:56:58 UTC · Discuss
The Last Couple Days
As I'm sure you're all aware by now, the server went through a bit of maintenance the last couple days and now seems to be working normally. We had to clear out a lot of backlog workunits due to technical problems on our side. The bad news is that if you crunched workunits in the last two or three days, those workunits may have been deleted before they were validated, meaning that you might not be getting credit for them. The good news is that the server is working again and that we have taken precautions so that this won't happen again in the future.
Apologies for any inconvenience this may have caused. This caught us by surprise just as it caught all of you by surprise, and know that we will always try our best to communicate with you all when these sorts of things happen.
3 Feb 2021, 16:49:59 UTC · Discuss
©2021 Astroinformatics Group