Downtime Wednesday August 12  |
This Wednesday (August 12, 2026) our Internet Service Provider at the Leibniz University Hannover is conducting an extended maintenance of the network infrastructure. Because of this our project will be unreachable between approximately 4 AM and 7 AM UTC. |
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| Processing of the square # 69 completed |
Dear participants, processing of the square # 69 is fully completed! The square:
0 1 2 3 4 5 6 7 8 9 A B
1 2 0 4 5 3 7 A 9 B 6 8
9 B 8 A 6 7 3 4 1 2 5 0
4 5 3 1 2 0 8 9 A 6 B 7
B 8 9 6 7 A 4 5 2 0 3 1
6 7 A B 8 9 1 2 5 3 0 4
2 0 1 5 3 4 A 6 B 8 7 9
5 3 4 2 0 1 9 B 6 7 8 A
7 A 6 8 9 B 2 0 3 4 1 5
A 6 7 9 B 8 0 1 4 5 2 3
8 9 B 7 A 6 5 3 0 1 4 2
3 4 5 0 1 2 B 8 7 A 9 6
has 25152 diagonal transversals and 441679400 orthogonal mates which puts it on the 60th place of the rating which included at the time of finding 6156 positions.
Thank you for project attention, support and donation of CPU time!
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| Processing of the square # 68 completed |
Dear participants, processing of the square # 68 is fully completed! The square:
0 1 2 3 4 5 6 7 8 9 A B
1 2 0 4 5 3 8 9 A B 6 7
6 8 A 9 B 7 0 5 1 3 2 4
5 3 4 1 2 0 7 6 9 8 B A
A 6 8 7 9 B 2 4 0 5 1 3
7 9 B 8 A 6 5 0 3 1 4 2
4 5 3 0 1 2 B A 7 6 9 8
3 4 5 2 0 1 9 8 B A 7 6
9 B 7 A 6 8 3 1 4 2 5 0
2 0 1 5 3 4 A B 6 7 8 9
B 7 9 6 8 A 4 2 5 0 3 1
8 A 6 B 7 9 1 3 2 4 0 5
has 25156 diagonal transversals and 445664065 orthogonal mates which puts it on the 58th place of the rating which included at the time of finding 6156 positions.
Thank you for project attention, support and donation of CPU time!
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| Processing of the square # 67 completed |
Dear participants, processing of the square # 67 is fully completed! The square:
0 1 2 3 4 5 6 7 8 9 A B
1 2 0 4 5 3 8 6 7 B 9 A
3 4 5 1 2 0 B 9 A 6 7 8
8 7 6 A 9 B 0 2 1 5 4 3
B A 9 8 7 6 5 4 3 2 1 0
A 9 B 7 6 8 3 5 4 0 2 1
7 6 8 9 B A 1 0 2 3 5 4
9 B A 6 8 7 4 3 5 1 0 2
4 5 3 2 0 1 A B 9 8 6 7
6 8 7 B A 9 2 1 0 4 3 5
2 0 1 5 3 4 7 8 6 A B 9
5 3 4 0 1 2 9 A B 7 8 6
has 25164 diagonal transversals and 462533670 orthogonal mates which puts it on the 56th place of the rating which included at the time of finding 6156 positions.
Thank you for project attention, support and donation of CPU time!
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| Another new Cunningham project record |
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NFS@Home again set a new Cunningham project record for the largest penultimate prime factor. 3,709+ factors into 159-digit and 168-digit prime factors, beating the 155-digit record set in April. Congratulations again to all of the project volunteers!
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| New Continuous Gravitational Waves search |
Dear Einstein@Home volunteers, we’re thrilled to announce a new Continuous Waves run! This run will be integrated into our ongoing all-sky program, contributing to our broad exploration for gravitational waves. We’re excited to have you with us—every bit of computing power brings us closer to discovery! Prof. Dr. M.Alessandra Papa |
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| Project update: July 2026 |
Dear all,
we are glad to announce that SiDock@home has been restored after a long technical maintenance. We really appreciate your patience and are grateful for your participation! We have assigned BOINC credits for all the unfinished tasks received before the pause. Some of the forum threads or posts may be lost, but the computational results have been restored.
As the project's server has been reinstalled, you will probably need to detach and attach again in BOINC Manager.
We apologize for the inconvenience and are very thankful for your participation!
Natalia
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| Degraded Website Availability |
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Some of you may have already noticed reduced website availability. We have been experiencing unusually heavy traffic from a distributed scraping bot. To mitigate the impact in the short term, we have temporarily disabled a number of pages and will gradually restore them over time. Thank you for your patience and understanding.
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| Database Intervention |
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The projects servers will have sporadic available on Thursday 4th June due to a database clean up operation.
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| BOINC Pentathlon |
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Another year, another BOINC Pentathlon. Once again, welcome back! NFS@Home has been chosen for the Sprint discipline starting May 16 at midnight UTC. Good luck to all! (Including the server!)
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| Downtime Tue 5th of May |
Please note that our servers will be unavailable for a while on Tuesday 5th of May until Wednesday 6th due to a change of storage backend.
Hence uploads may fail and other BOINC client requests time out. Many thanks for your understanding and happy crunching!
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| The search up to 10^21 is finished |
After more than 6 years, the BOINC project to find all amicable numbers up to 1021 is finished!
There are 4,810,863 21-digit amicable numbers, and 4,661,814 (96.9%) of them were found by BOINC volunteers. More than 60 million WUs were created and crunched through over the years.
Congratulations everyone and thank you all for your participation!
There are no plans to run the search up to 1022 at the moment - it will take more than 60 years, which is impractical. If, and that's a big IF, a new more efficient exhaustive search method is discovered in the future, then it will make sense to start the project again.
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| New App "ECM P2 (20 GB RAM)" in test |
| I'm currently testing a new app for ECM which requires up to 20 GB of RAM. If you have such a system and want to help testing,
please enable the app in your project settings.
Validation and credit granting is not yet implemented for this app. |
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| We haven’t forgotten about you // No nos hemos olvidado de vosotros |
Dear volunteers,
First of all, please accept my apologies for this long period without any news from us. At the end of last academic year, two events occurred that blocked us from moving forward with the work we were doing in DENIS: on the one hand, Iván finished his grant and started working at a company; and on the other hand, the Rector of the University asked me to take on a Vice-Rector position for this academic year. This latter responsibility has meant that, since the beginning of the year, all my working time has been completely overtaken by this new role. Yesterday in a meeting, someone made me realize that I have already been in the position for six months! In this new situation, time goes by incredibly fast, and I am sometimes unaware that, from the outside, it must seem like a very long period.
My sincere apologies for not having shared any updates earlier. For quite some time I have had several tasks on my list of things to post here, and I kept saying nothing with the intention of completing them before reporting back… but as you can see, so much time has passed.
Marta Gómez has published an article which, although it has not been counted within DENIS, she uses the same simulator that we know is robust and reliable thanks to the large battery of tests we conducted with you. We still have to complete a few more simulations from Iván’s work, but what we already have looks very promising, and we would like to submit it to a conference at some point. I also need to finish some aspects of the model optimization work, and I have pending simulations that I want to resume when possible. I hope to stabilize myself in the new position and manage my administrative duties alongside my research, but for now, it seems we will have to take a break here for a while. I hope to resume this project as soon as possible.
Thank you very much to all of you for still being here. Even if I don’t show it often, I never forget about you (which is impossible, given all the good things you have contributed).
Kind regards,
Jesús
===================================================================
Estimados voluntarios:
Lo primero de todo disculpad este largo período sin que hayáis tenido noticias nuestras. A final del curso pasado tuvimos dos hechos que han marcado el no poder avanzar con el trabajo que estábamos haciendo en DENIS: por un lado Iván terminó la beca y comenzó a trabajar en una empresa, y por otro lado, la Rectora de la Universidad me solicitó que asumiera este curso un puesto de Vicerrector. Esto último ha hecho que, desde principio de curso, todo mi tiempo de trabajo se haya visto desbordado por esta nueva responsabilidad. Ayer en una reunión, una persona me hizo darme cuenta de que ¡ya son 6 meses en el cargo! En esta nueva situación el tiempo se me pasa rapidísimo y no soy consciente, a veces, de que visto desde fuera es un período enorme.
Mil disculpas por no haber dado noticias antes. Llevo bastante tiempo con varias tareas en mi lista de cosas a poner por aquí y no decía nada con la intención de hacerlas y comunicarlas... pero ya veis cuánto ha pasado.
Marta Gómez ha publicado un artículo, que aunque no se ha computado en DENIS, sí que ha utilizado el mismo simulador que sabemos que es robusto y fiable gracias a la gran batería de pruebas que hemos hecho con vosotros. Tenemos que terminar alguna simulación más del trabajo de Iván, pero lo que ya tenemos tiene muy buena pinta y querríamos enviarlo en algún momento a una conferencia. Tengo que terminar alguna cosa de la optimización de los modelos y tengo simulaciones pendientes, quiero retomarlas en algún momento.
Espero poder estabilizarme en el nuevo puesto y compatibilizar mejor la gestión con mi investigación, pero de momento, creo que va a tocar una temporada de parón por aquí. Espero volver lo antes posible a reactivar este proyecto.
Muchas gracias a todos por seguir aquí, aunque no lo demuestre muchas veces, no me olvido nunca de vosotros (es imposible con todo lo bueno que nos habéis dado).
Un saludo,
Jesús.
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| Downtime for database upgrade |
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There will be some server downtime Wednesday morning from 9 UTC due to a database upgrade.
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| Server Upgrade - Monday 26th January 2026 |
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On Monday at 13:30 CET, the server will be upgraded the latest release. This will involve downtime since the data base will need to be upgraded.
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| iThena.Measurements: The project comes back to life |
After a long break in the operation of iThena.Measurements Project, the system came back to life.
The problems were related to major technical issues.
Initially, there were problems with the fiber optic connection.
Later, after the fiber optic cable was repaired, problems with the main server arose. Unfortunately, the problem turned out to be quite complex and the entire motherboard in the rack server had to be replaced.
There was no official information. Several people wrote to me by email and I replied with a brief message saying that I hoped everything could be repaired without any loss of data. Fortunately, it worked...
It was the longest interruption in the system's operation in history and lasted from 2025-11-13 12:35:47 to 2026-01-17 15:47:30, i.e., 1563 hours and 11 minutes.
No data should be lost.
Thank you all very much for your patience...
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| iThena.Computational: The project comes back to life |
After a long break in the operation of iThena.Computational Project, the system came back to life.
The problems were related to major technical issues.
Initially, there were problems with the fiber optic connection.
Later, after the fiber optic cable was repaired, problems with the main server arose. Unfortunately, the problem turned out to be quite complex and the entire motherboard in the rack server had to be replaced.
There was no official information. Several people wrote to me by email and I replied with a brief message saying that I hoped everything could be repaired without any loss of data. Fortunately, it worked...
It was the longest interruption in the system's operation in history and lasted from 2025-11-13 12:34:12 to 2026-01-17 15:47:33, i.e., 1563 hours and 13 minutes.
No data should be lost.
Thank you all very much for your patience...
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| Status update |
Unfortunately, there is nothing to report right now. The BOINC server is up and running, waiting for input from the scientists, but there is no news at this time. Thank you for your patience.
The biologists are still working on the results obtained in the past. I’ll keep you updated when some papers are published.
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| 2025 Year End Summary |
The main highlights this year were:
1. We spent the majority of the year on rows 15 and 16 for the subfield 6 searches. Row 15 is now in the "essentially complete" phase, with only 15x12 left. Row 16, which is the final row, has progressed up through 16x9 (technically speaking, we have 2 weeks left on it).
2. Subfield 7, which is almost complete, is being polished off be the folks at Gerasim. Unfortunately, Gerasim sufferred a crash back in August which put things on hold. Sergey and Demis over at Gerasim are getting close to having is working again. The windows app appears to be working from my perspective, and we just need to get the other apps configured properly, so hopefully only a couple more weeks. Before the crash, the search had progressed up to 11 of the 25 congruences.
Looking ahead in 2026, the main goal will be to complete as mush of row 16 as possible for subfield 6.
Thanks everyone for your contributions and have a wonderful New Year!
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