2017-11-18: SRBase, SRBase - 3 years reviewThe project has passed the third year.
Compared with last years the following process was made:
2014-2015 - 87M WUs processed, 1 base solved, 314 bases unstarted
2015-2016 - 88M WUs processed, 5 bases solved, 297 bases unstarted
2016-2017 - 99M WUs processed, 5 bases solved, 282 bases unstarted
in total - 274M WUs processed, 11 bases solved, 282 bases unstarted
The computing power was beyond the 40TFLOP mark. KEP is still working on a more precise stats overview and will be released maybe in January 2018 so stay tuned.
The next upcoming llr app will have a new gwnum lib with full AMD Ryzen support but I dont know when it will be released.
Due the lack of available sievefiles there are some gaps in the work generation. The remaining primes for these bases are very high, the tests are going over a million. The project cannot handle so many files into one folder thats why they must be splitted into some batches.
The yoyo@home project took over the sieving part for CRUS / SRBase. More and more new sievefiles will be available in the future in a short time period. If you want to help there enable sieving in prefs.
A big thx to the Gridcoin team for the amazing computing power in the past months and of course all the other users / teams spend their power to bring the project forward.
For those who are interested in the public paper for SRBase this is now ready for download.. I will add a link on the frontpage soon. If you have any questions about it let us discuss this in the forum.
2017-11-18: RakeSearch, And more pairs of ODLS found in November!Dear crunchers!
Another weekend and a third (in November) set of squares is published on the results page and we send our congratulations to:
Ralfy (BOINC Confederation) and Daniel (BOINC@Poland),
Paul and Kodeks IT (Karelia),
lionelc (L'Alliance Francophone) and bill brandt-gasuen,
amazing (SETIKAH@KOREA) and Jeff17 (BOINCstats),
Nosferatu* (Sicituradastra.) and Hoshione (SETI.Germany),
Fernando Miguel and shiva (SETI.USA),
Fornax (SETI.Germany) and AMDave (AMD Users),
hoarfrost (Crystal Dream) and [SG]ATA-Rolf (SETI.Germany),
Steve Dodd (The Planetary Society) and SerGiani (Russia Team),
ToyMachine (Overclock.net) and Gunnar Hjern,
citerra (Russia Team) and fzs600 (L'Alliance Francophone),
Stephen Uitti (Project Blue Book) and Pascal (L'Alliance Francophone),
arkiss and [DPC] hansR (Dutch Power Cows),
Alez (The Scottish Boinc Team) and KWSN-SpongeBob SquarePants (The Knights Who Say Ni!),
Odicin (BOINC Confederation) and ReaDy (Astronomy.Ru Forum),
fix and Morgan the Gold!
Thank you for participation!
2017-11-17: PrimeGrid, Pierre de Fermat's Birthday Challenge in 12 hours!In less than 12 hours, PrimeGrid's three day Pierre de Fermat's Birthday Challenge will begin. For the first time ever, this challenge will feature the three smallest Generalized Fermat projects, GFN-15, GFN-16, and GFN-17-Low.
Head on over to the the challenge's forum thread for more information and discussion.
2017-11-16: Cosmology@Home, Fill out a survey to help Cosmology@HomeHi everyone, graduate student Lo Lee and Professor Peter Darch of the University of Illinois (where we got our start back in 2007) are conducting a survey of Cosmology@Home users for their research. If you have a moment, we'd appreciate if you could fill in the survey at https://illinois.edu/sb/sec/2695704. Your (completely anonymous and confidential) responses may also help us guide the design of Cosmology@Home in the future. Many thanks!
2017-11-15: Duchamp Sourcefinder, SoFiA Production Update 2The work for this week is broken up in to 4 different runs (16 -> 19) which each contain a quater of the 486 parameters that we're running through SoFiA.
The aim here is to reduce the run time of each work unit, and reduce the amount of data that needs to be re-calculated whenever a workunit is marked invalid.
I'm still investigating the actual cause of these invalid workunits, but I still haven't been able to re-produce the errors locally on my own machines. In the mean time, I hope this quick fix eases the load a little.
2017-11-14: PrimeGrid, Announcing: Fewer Announcements!In 2018, we are changing our policies regarding announcement of significant prime discoveries. We're raising the bar so that announcements once again are something special and not just "the prime of the week."
Details and discussion can be found here.
2017-11-14: PrimeGrid, Another PPS-Mega Prime!On 13 November 2017, 00:26:44 UTC, PrimeGrid?s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,036,447 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 208th overall.
The discovery was made by Joshua Charles Campbell (Warp Zero) of Canada using an Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz with 64GB RAM, running Linux. This computer took about 42 minutes to complete the primality test using multithreaded LLR. Joshua is a member of the Canada team.
The prime was verified on 13 November 2017, 18:22:32 UTC by Jon Goral ([KWSN]John Galt 007) of the United States using an Intel(R) Core(TM) i7 940 CPU @ 2.93GHz with 24GB RAM, running Microsoft Windows 10. This computer took about 6 hour 76 minutes to complete the primality test using LLR. Jon is a member of The Knights Who Say Ni! team.
For more details, please see the official announcement.
2017-11-13: LHCathome-dev, New logo for LHC@home?We are planning to update our web presence for LHC@home and in this context we got a couple of proposals for a new LHC@home logo from our graphics team.
Continue to use the current logo: in extended and compact form.
Alternative new logo 1:
Alternative new logo 2:
Please vote your preference among the logos on this Doodle poll page.
Please note that this is work in progress, and that these images may be adjusted. Also if you have other proposals of your own, please do not hesitate to comment and display/link alternatives here in the forum. :-)
Many thanks in advance for your help and feedback!
..The LHC@home team
2017-11-12: SRBase, base S263 cancelled (average app)I have forgot to change and removed all WUs, 200 WUs were sent out before I noticed that. Please abort all of this batch. Sorry for the trouble.
2017-11-12: RakeSearch, More pairs of ODLS foundDear participants!
The second bunch of our congratulations we send to:
ReaDy (Astronomy.Ru Forum) and citerra (Russia Team),
taurec (SETI.Germany) and DrBob (USA),
Fernando Miguel and Duce H_K_ (TSC! Russia),
Nosferatu* (Sicituradastra.) and Conan (Cobar Spiders),
Werinbert (Free-DC) and Scotie (Czech National Team),
zoltan blatter (The Scottish Boinc Team) and Dingo (BOINC@AUSTRALIA),
meadoel (BOINCstats) and Sabroe_SMC (SETI.Germany),
GLeeM (TeAm AnandTech) and Fornax (SETI.Germany),
Steve Dodd (The Planetary Society) and owensse (The Planetary Society),
TBox0194 (USA) and [DPC] hansR (Dutch Power Cows),
respawner (Rechenkraft.net) and Sphynx (SETI.USA)!
The project performance observed in the last two weeks achieved a power comparable with a computing cluster of ~600 CPU cores and boosted the speed of our research by a dozen of times! Thank you very much for participation!
2017-11-11: RakeSearch, Anniversary of Perelman solution and a bunch of ODLS!15 years ago, on 11 November 2002, Grigori Perelman posted the first of a series of three e-prints outlining a solution of Poincare conjecture:
The entropy formula for the Ricci flow and its geometric applications
Ricci flow with surgery on three-manifolds
Finite extinction time for the solutions to the Ricci flow on certain three-manifolds
In honour of this anniversary (and three months of our project life :)) we start publishing the results found by the crunchers in October and November and granting them badges, specially created for this event.
Our first congratulations we send to:
LCB001 (Hardware Canucks), Mumps [MM] (SETI.USA),
ale4316 (Ukraine), zombie67 [MM] (SETI.USA),
Ufol (BOINC@Poland), tom7up (SETI.Germany),
fzs600 (L'Alliance Francophone), Daniel (BOINC@Poland),
Hoshione (SETI.Germany), AL ADIM (BOINC@Poland),
eclipse99 (BOINC@Poland), [SG]ATA-Rolf (SETI.Germany),
bill brandt-gasuen, Ralfy (BOINC Confederation),
Roadranner (SETI.Germany), KPX (Czech National Team),
AMDave (AMD Users), Paul,
aendgraend (SETI.Germany), fix,
Xperos (Xperos) and Tuna Ertemalp (Microsoft)!
Many of these participants discovered more than one result with ODLS pairs!
And, of course, we applause to Ralfy and the BOINC Confederation team, which catch the lead in Users and Teams standings!
As previously, all found ODLS can be seen at the results page.
2017-11-11: Citizen Science Grid, [wildlife] maintenance issueWhen our systems went down last thursday it looks like there was an issue mounting the storage that housed the imagery and video. They're working on this and hope to have a fix soon. Unfortunately this was done right before a holiday weekend, so the fix might not happen until monday.
2017-11-11: SETI@Home, Database slownessWe're having some as yet unexplained slowness with the our BOINC database. There don't seem to be any hardware issues. Temperatures are running normal and all the drives seem good. Yet for some reason the query that fills the "ready to send" queue is running about 10 times slower than it normally does.
Until I get it fixed, it means that on average we're sending out 3 workunits a second rather than 30+.
I'll let you know when I've got it figured out.
2017-11-10: yoyo@home, Enhanced statistics for the Siever appOn the Siever status page you see now on which base we are working and how they are progressing.
2017-11-10: GPUGRID, New multicore app and WUsDears,
we would like to test our new CPU multicore application for quantum chemistry tasks ("QC"). Since it?s the first time we have a CPU app out, I?ll test the behavior of GPUGRID with a relatively large batch that you will see soon. Workunits are named "*QC309big*".
Here?s some features of the app, in short (subject to change):
* Platform: Linux only for now, generic x64.
* Threads: as many as Boinc decides. I guess it depends on your machine, your preferences, and other running tasks in ways which are obscure to me?
* Run time: about 1 CPU hour per WU (so, shorter if multithreading)
* Credit: computed with the default algorithm (tasks are short, don?t expect much). Bonus mechanism for fast turnaround is still on.
* Known bugs: restarts and checkpoints. This should be mitigated with the ?keep in memory when suspended? option. Sorry about that, it?s outside of our control.
* Network behavior: the first time you get a WU of this kind it downloads a Python interpreter (miniconda) and then some open-source packages, and installs them in the project directory. The installation is reused whenever possible.
* Disk usage: could go around 1 GB, perhaps more when tasks are running. Resetting the project should remove everything.
* Memory usage: should be around 1 GB when running.
Depending on the results of this test, we?ll start thinking about other platforms.
Thanks and nice crunching!
2017-11-09: yoyo@home, Perfect Cuboid: Starting skipped range with more cuboidsIn the Perfect Cuboid subproject we have added per user statistics of found cuboids, as well as subproject status page was extended by the common statistics. 11 November at 11:11 UTC we are going to launch the 0-10T range which we skipped from the beginning, which contains almost the same amount of cuboids we've already discovered, and throw out 4 times shorter tasks to give an opportunity for all concerned users to put into the personal statistics a large number of cuboids. So, don't miss the start time.
2017-11-09: ODLK, The branch of ODLK projectDear participants!
The branch of our BOINC project started to work
The branch is still in testing mode.
We invite you to take part in the testing.
2017-11-08: Duchamp Sourcefinder, SoFiA Production Update 1Added the ability to scale credit awarded to workunits by the validator. Currently credit scaling is at x1.5 to make up for the validation errors we've been having.
Currently processing a new batch of work units, which should be done within the next 12 or so hours.
2017-11-06: yoyo@home, P73 record number found with gmp-ecmFor the ECM repunit project user astroboylok found a 73 digit prime. This number will make it into the largest primes list ever found with gmp-ecm.
2017-11-06: Universe@Home, Next paper published in the Astrophysical JournalSimulations done with the use of Universe@Home and the analysis performed in the cooperation between University of Warsaw (Poland) and University of Ferrara (Italy) resulted in a research paper publication in the Astrophycial Journal, one of the highest ranked scientific journals worldwide! The article can be found on arXiv: https://arxiv.org/abs/1707.01586
The research on hypothetical quark stars was the first of its kind and gave a few very interesting conclusions. Although we showed that the presence of these objects cannot be proved or rejected on the base of available observations, quark stars have a potential to explain the long gamma ray burst phenomena and the so called "strangelets pollution" problem.
Symulacje wykonane z wykorzystaniem Universe@Home i analiza wynik
2017-11-06: GoofyxGrid@Home NCI, Moving to new serverLike I wrote before no more test or experimets... now it's time to move full system from temporary virtual machines to new home system.
In next week (I don't know exactly which day it will be) there will be some break with accessing to project and even to web page so don't worry it's just removal to the better place ;)
2017-11-04: YAFU, New Aliquot Sequence range openedWe expanding our research now to not terminated Aliquot Sequences between 1e6 and 2e6. This means that there will be more work now also for YAFU-small, YAFU and YAFU-4t applications.
2017-11-03: SETI@Home, SETI@home 2017 fundraising drive has begun.We've started our annual fundraising drive to help raise the money we need to keep SETI@home running and expand it to new telescopes. Your computers provide us with the power to analyze this data, but your donations are an important part of keeping us operating.
If you haven't yet received your fundraising letter, you can preview it here. You can donate at https://setiathome.berkeley.edu/sah_donate.php.
Thanks for keeping SETI@home going!
2017-11-03: PrimeGrid, Another PPS-Mega Prime!On 2 November 2017, 16:43:22 UTC, PrimeGrid?s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,035,606 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 208th overall.
The discovery was made by Luk
2017-11-02: RALPH@Home, Project News Nov 2, 2017rosetta_beta has been updated to version 4.05. This version represents a recent version of the Rosetta source distribution. Please continue to post bugs/issues in this thread.
2017-11-01: MilkyWay@home, Issues With Work GenerationHey Everyone,
Just noticed some issues with the work unit generator. Working on it.
Was a quick fix. I'll keep an eye on things for the rest of the night.
2017-11-01: PrimeGrid, GFN-262144 Mega Prime!On 30 October 2017, 01:31:18 UTC, PrimeGrid?s Generalized Fermat Prime Search found the Generalized Fermat mega prime:
The prime is 1,717,031 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 6th for Generalized Fermat primes and 53rd overall.
The discovery was made by Scott Brown (Scott Brown) of the United States using a Nvidia GeForce GTX 1080 Ti in an Intel(R) Xeon(R) E5-1650 v3 CPU at 3.50GHz with 32GB RAM, running Microsoft Windows 7 Enterprise Edition. This GPU took about 17 minutes to probable prime (PRP) test with GeneferOCL3. Scott is a member of the Aggie The Pew team.
The prime was verified on 30 October 2017, 11:31:11 UTC by Alexander Falk (Alexander Falk) of the United States using an NVidia GeForce GTX 1080 GPU in an Intel(R) Core(TM) i7-7700K CPU at 4.20GHz with 64GB RAM, running Microsoft Windows 10 Professional Edition. This GPU took about 18 minutes to probable prime (PRP) test with GeneferOCL3. Alexander is a member of The Knights Who Say Ni! team.
The PRP was confirmed prime by an Intel(R) Core(TM) i5-4670K CPU @ 3.40GHz with 24GB RAM, running Microsoft Windows 7 Professional Edition. This computer took about 12 hours 30 minutes to complete the primality test using multithreaded LLR.
For more details, please see the official announcement.
2017-11-01: Duchamp Sourcefinder, SoFia Production WorkunitsGreetings Everyone!
I'm pleased to announce that I'm starting production workunits for SoFiA. After the removal of the Wm50 parameter from SoFiA's parameter files, the previous determinism issues disappeared, so I'm ready to begin pushing out production work units.
These work units are the exact same as the Duchamp ones, around 15MB in size. This time, however, we're running 486 different parameter combinations, which is up significantly from Duchamp's 176 parameter combinations. You can expect longer WU times, with a larger amount of credit per WU.
The project scientists are also in the process of re-chopping the DINGO cube in to larger, 100MB pieces that we'll also be running through SoFiA. When these cubelets are available, I will be splitting them in to a set of 5 different runs, with a different parameter set for each run. The first 4 runs will contain 100 of the 486 SoFiA parameters, with the final run making up the remaining 86 parameters.
I'll keep you updated as to when these workunits will be available.
I must also recommend that everyone does NOT update to VirtualBox 5.2 for the time being. I'm currently waiting on BOINC to officially release their VirtualBox 5.2 compatible wrapper versions.
Finally, I'm going to attempt to make time to check the Sourcefinder message boards every day, instead of only on Wednesdays when I'm actually working on Sourcefinder tasks. Hopefully this'll help me be significantly more responsive to any Sourcefinder related issues that crop up over the coming months.
Thank you everyone for being patient with the rather slow progress of the SoFiA beta. I hope to have a fairly steady flow of production work units.
2017-10-31: World Community Grid, The Whats and Whys of Basic ResearchWhat is basic research and how is it applicable to the work done on World Community Grid? In this article, we'll address some of the fundamental questions about basic research, which is the foundation of scientific discovery.
2017-10-30: PrimeGrid, And Yet Another PPS-Mega Prime!On 29 October 2017, 18:33:36 UTC, PrimeGrid?s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,035,188 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 207th overall.
The discovery was made by Randall Scalise (Randall J. Scalise) of the United States using an Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz with 8GB RAM, running Windows 10 Enterprise Edition. This computer took about 1 hour 48 minutes to complete the primality test using LLR.
The prime was verified on 30 October 2017, 04:48:03 UTC by Pete Allivato (Todderbert) of the United States using an Intel(R) Xeon(R) E31240 CPU @ 3.30GHz with 8GB RAM, running Windows 7 Professional Edition. This computer took about 1 hour 27 minutes to complete the primality test using LLR. Pete is a member of the GPU Users Group team.
For more details, please see the official announcement.
2017-10-30: PrimeGrid, Yet Another PPS-Mega Prime!On 27 October 2017, 22:42:37 UTC, PrimeGrid?s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,035,117 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 207th overall.
The discovery was made by Jochen Beck (dh1saj) of Germany using an Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz with 32GB RAM, running Windows 10 Professional Edition. This computer took about 51 minutes to complete the primality test using LLR. Jochen is a member of the SETI.Germany team.
The prime was verified on 27 October 2017, 22:48:56 UTC by Lars Fricke (Lars Fricke) of Germany using an Intel(R) Xeon(R) E5-2620 v4 CPU @ 2.10GHz with 64GB RAM, running Linux. This computer took about 1 hour 29 minutes to complete the primality test using LLR.
For more details, please see the official announcement.
2017-10-27: Universe@Home, Maintenance shutdownTomorrow (28th October 2017) our servers will be switched off due to electricity maintenance works in servers room.
2017-10-26: yoyo@home, Additional stats for Perfect CuboidWe added per user statistics of found cuboids
and as well the subproject status page
was extended some common statistics.
Today we have added Hits to Perfect Cuboid subproject, so from now you can compete not only in earned Credits,
but also in the amount of found cuboids. Free-DC is already showing Hits in
And also good news, today we "crossed the equator" of the 1st Batch, Max In Progress threshold has exceeded
249 = 562.949.953.421.312, which is the half of our 1st goal - 250.
2017-10-23: yoyo@home, A publication on Harmonious Trees and Odd Weird SearchIt has been a long time, we know, that there was no news whatsoever the results of Harmonious Trees,
or Odd Weird Search. All we knew was that we found nothing, the conjectures remained safe, and even taking
on more credence. It sounds a bit anti-climatic.
But no! In this interval, we have been busy working on something. It is a research article, to be precise,
that describes what we did to make both projects possible, what we observed, and what we can do to make it better
(if there is a similar problem to be made into a volunteer computing project).
And finally, after a lot of writing and editing in between great periods of procrastination (yes, I did a PhD in math
in between, and yoyo of course needs to maintain the project alongside his work), today it is finally published!
Titled Parallel Tree Search in Volunteer Computing: a Case Study, the article can be found here:
It is open access, meaning that everyone can download it and have a look freely.
Thanks to TU Graz (I am a postdoc there), FWF (the Austria founding agency) and the library of TU Graz for having an
open access arrangement with Springer. Otherwise, the authors generally have to pay thousands of dollars for the open
access option. So, enjoy if you are interested!
Here is an abstract of the article:
While volunteer computing, as a restricted model of parallel computing, has proved itself to be a successful paradigm
of scientific computing with excellent benefit on cost efficiency and public outreach, many problems it solves are
intrinsically highly parallel. However, many efficient algorithms, including backtracking search, take the form of a
tree search on an extremely uneven tree that cannot be easily parallelized efficiently in the volunteer computing
paradigm. We explore in this article how to perform such searches efficiently on volunteer computing projects.
We propose a parallel tree search scheme, and we describe two examples of its real-world implementation, Harmonious Tree
and Odd Weird Search, both carried out at the volunteer computing project yoyo@home. To confirm the observed efficiency
of our scheme, we perform a mathematical analysis, which proves that, under reasonable assumption that agrees with
experimental observation, our scheme is only a constant multiplicative factor away from perfect parallelism. Details
on improving the overall performance are also discussed.
2017-10-23: YAFU, Aliquot sequence 231552 has terminated!!!Aliquot sequence 231552 has terminated!!!
2017-10-23: World Community Grid, Planned Maintenance on Wednesday, October 25 (Completed)We are upgrading the software version of our clustered file system on Wednesday, October 25, beginning at 12:00 UTC.
2017-10-23: World Community Grid, Planned Maintenance on Wednesday, October 25We are upgrading the software version of our clustered file system on Wednesday, October 25, beginning at 12:00 UTC.
2017-10-22: GoofyxGrid@Home NCI, Maintance breakI need to workout some database problems
2017-10-21: MilkyWay@home, Update on This Weeks ErrorsHey Everyone,
I just wanted to give you all a quick and more technical update on what we have been dealing with over the last week.
Our project has been running for upwards of 10 years now and we have been crunching literally billions of workunits over those years. As a result of all of your hard work and dedication, we have actually calculated enough results that we have run out of room to store the IDs of all of these results in a normal unsigned integer value (the default data type used for storing IDs in BOINC databases). As a result, on Tuesday night, I updated our database to be able to store IDs in a much larger data type to prevent this issue from happening again during the remaining life of the project. As a result, I also had to quickly patch the BOINC code we run on the server to allow it to use this newly available data type in the database.
During this process, I missed one of the foreign keys that refers to the results, specifically in the validation process. This led to an issue in validation of work units over the last couple days. I had trouble diagnosing this issue because before the workunit queue clear, everything was running fine however, after the workunit queue clear, when new work with large IDs was being returned, it silently failed to validate workunits.
I have implemented a fix for this last issue and my hope is that things will be smooth sailing from here on with regards to this issue. Of course, there is always the possibility I missed another bug in this pipeline, or I might realize I need to force validation on workunits received over the last couple days. In any case, I will be watching the server pretty closely over the next couple days to make sure its running correctly.
Sorry for all of the trouble over the last couple days and I hope you all continue to support the important research we are doing into the future.
2017-10-21: MilkyWay@home, Workunits Not ValidatingHey Everyone,
I see a lot of workunits aren't validating. I think I know why. I'm going to take the server down for an hour or two while I try to fix it.
Sorry, for all of the trouble recently.
I implemented a fix. I will monitor it for the rest of the weekend.