Dear volunteers,
I am writing to update you on how the project is going and the results we are obtaining.

First of all, the optimization of the new model we are developing has already finished (the first one we released). Unfortunately the results have not been as expected. The optimization has worked very well and many markers have been improved, but one of the model issues that we are trying to fix has reappeared after the optimization. We think we understand where the problem is coming from and why it seemed like we fixed it, but really didn't. If we are right, this will require rethinking the model and starting over. Before starting again, we are testing various optimization settings to try to optimize the model without getting to the point where the problem reappears. We're not sure if it will work (this is science), but before we have to start over, we want to test this option.

On the other hand, some of you have already noticed that we are launching work in the Beta version. One of our pending projects was to use DENIS not only to improve the model we were developing, but also to try to improve other existing models. Let's start with this part of the project. For now, we will use the O'Hara and Rudy model, one of the most used in research. We have released the simulations in Beta version because we have never tested this model in DENIS before, but they will soon be released in HuVeMOp.

Finally, you may have noticed that we have run out of space a couple of times lately: the increase in the number of simulations requires more speed to get the results out and post-process them. We are working on further automating these processes in order to continue growing.

Thank you all very much for your support of the project and we will keep you informed of new developments.

Sincerely,
Jesus 6/20/23

Results from deep all-sky search on LIGO O3 data
The results of our all-sky search for continuous gravitational waves in public data from LIGO's third observing run (O3) have been published on the arXiv preprint server: Deep Einstein@Home all-sky search for continuous gravitational waves in LIGO O3 public data. The manuscript is currently in the peer-review process for publication in The Astrophysical Journal.
Link: https://arxiv.org/abs/2303.04109

...The search did not reveal any gravitational-wave signal. Based on this we draw conclusions about the population of neutron stars in our Galactic neighborhood. For example, within 100 parsecs (~330 light-years) around Earth there are no neutron stars rotating faster than 12,000 rpm with equatorial mountains larger than half a millimeter; otherwise we would have very likely detected their continuous gravitational waves.

4/20/23
https://einsteinathome.org/content/results-deep-all-sky-search-ligo-o3-data

Dear volunteers,
We update you on the status of the project and how the simulations are going. In recent weeks the search algorithm has been improving the model very little. This indicates us that the optimization is close to be finished. Once this is complete we will pass to the validation phase which we will be done outside of DENIS (DENIS is not yet prepare for the required simulations).

4/11/23
https://denis.usj.es/denisathome/forum_thread.php?id=258

News about Einstein@Home searches for radio and gamma-ray pulsars

Dear Einstein@Home volunteers,
We'd like to update you about our searches for new neutron stars using data from radio telescopes and from the Fermi gamma-ray satellite. Thanks to you, Einstein@Home has already found 55 new radio pulsars and 39 new gamma-ray pulsars. With your continued support, we believe that many more will follow.
3/8/23
https://einsteinathome.org/content/news-about-einsteinhome-searches-radio-and-gamma-ray-pulsars

We evaluated the possibility of starting download of processed WUs, while not sending new WUs out. It was determined that the risk of complications that might result from doing this with incomplete information available to our scheduler and BOINC or any other unforeseen issues is too high.

...it will take about 74 hours.

on a quick update, finally, /science filesystem is on the move to the new storage from the recovery storage unit. As of last night, after 3 hours, the new storage /science filesystem shows 1.4TB used. Assuming such average rate of file transfer, it will take about 74 hours. Hopefully, we will be able to restart BOINC from the new storage and finally put the failure behind us. We will keep you posted.

sincerely
igor
[Mar 24, 2023 11:18:51 AM]
https://www.worldcommunitygrid.org/forums/wcg/viewthread_thread,44980_offset,140

as for the help - logistic is tricky considering we run from a different data centre - and of course we cannot give access to a broad group - but once we can at lest walk again, there are things we plan on our side, and other with the broader community. Briefly - we need to simplify the backend - at the moment, we often run into multi points of failure, instead of robustness. But - once we will be in such a position - we want to run hackathons - this can substantially help with optimizing code we run on the grid, and bring new projects. So far, nVidia is interested to discuss this further - as our plan is to bring more GPU projects. But - of course the backend has to be upgraded before that - as peak performance during GPU stress test in 2021 was around 16PFLOPS.

thank you all for your support
Igor
[Mar 24, 2023 12:47:48 PM]
(Same link as above)

Hello everyone, hope you had a great weekend. We are still working with data centre to resolve the hardware failure so we can restart the storage, BOINC and website ASAP. We will post updates as we receive them. Thank you for your patience.

Update: Unfortunately, additional hardware problem on the storage server besides the RAID card are preventing us from restarting. Working with the data center on the alternative solutions.

Update #2: Unfortunately, the RAID controller was not the root cause of our storage system failure, the PCI bus failed. Data center is in the process of moving the disks to an alternate system and we will post updates as we progress. Once again, thank you for your patience.

March 6, 2023
https://www.facebook.com/worldcommunitygrid.org/

We have taken additional measures to increase the quantity of WUs we can send out, and we have been able to increase the quantity of WUs in flight at any given time. Volunteers should see this reflected on their devices now, and perhaps even over this past week.

We are also relieved to share that the hosting data centre has assigned additional personnel on site to resolve our networking issues, meaning a fix is imminent. We will share with you any further updates we receive from the data centre. The network fix will allow us to bring our remaining servers online, stabilizing and further increasing the WU supply. Thus, until we are able to deploy all dedicated servers, we must continuously adjust and monitor tasks scheduled in Aurora/Mesos to keep the tasks balanced and the workunits flowing, and so far this process is unduly intensive and sporadic.

...Last week, we mentioned that we have begun to investigate concerns over statistics, credit, streaks, and database dumps raised by volunteers. We will have an update on some of these issues next week. We also plan to release a more structured breakdown from the tech team similar to a CHANGELOG starting next week or the week after so that we can increase the frequency and clarity of updates.

https://www.worldcommunitygrid.org/forums/wcg/viewthread_thread,44273