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2020-01-25: PrimeGrid, World Record Fermat Divisor Found!

On 22 January 2020, 15:00:58 UTC, PrimeGrid's Fermat Divisor Search found the Mega Prime:

13*2^5523860+1 Divides F(5523858)

The prime is 1,662,849 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 115th overall. This is a world record for prime Fermat divisors, and it is also ranked 4th for ?weighted? prime Fermat divisors.

The discovery was made by Scott Brown (Scott Brown) of the United States using an Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz with 16GB RAM, running Microsoft Windows 10 Core x64 Edition. This computer took about 39 minutes to complete the primality test using multithreaded LLR. Scott is a member of the Aggie The Pew team.

The prime was verified on 22 January 2020, 15:11:39 UTC by Stefan Larsson (288larsson) of Sweden using an Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz with 8GB RAM, running Microsoft Windows 10 Core x64 Edition. This computer took about 46 minutes to complete the primality test using multithreaded LLR. Stefan is a member of the Sicituradastra. team.

For more details, please see the official announcement.

2020-01-25: GPUGRID, Large scale experiment: MDAD

We are starting a new large-scale experiment. There will be plenty of workunits, whose very first batch is currently being sent. Run times should be around 6h but with a lot of variability. They are very heterogeneous so please don't worry for failures.

Thanks! -Toni

2020-01-23: World Community Grid, Planned Maintenance on Friday, January 24, 2020

We are updating the operating system on our servers on Friday, January 24, beginning at 17:00 UTC.

2020-01-23: World Community Grid, Planned Maintenance on Friday, January 24, 2019

We are updating the operating system on our servers on Friday, January 24, beginning at 17:00 UTC.

2020-01-23: LHC@Home, Server outage - uploads failing

Due to a network problem in the CERN computer centre early Thursday morning, our BOINC servers have lost access to a storage cluster. Hence uploads are failing and access to web pages as well. Hopefully this should be fixed soon.

2020-01-22: PrimeGrid, Another GFN-262144 Find!!

On 21 January 2020, 00:49:54 UTC, PrimeGrid's Generalized Fermat Prime Search found the Mega Prime:

9450844^262144+1

The prime is 1,828,578 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 15th for Generalized Fermat primes and 85th overall.

The discovery was made by Jacob Eikelenboom (Eikelenboom) of The Netherlands using an NVIDIA GeForce RTX 2060 in an Intel(R) Core(TM) i7-9700F CPU @ 3.00GHz with 16GB RAM, running Microsoft Windows 10 Core x64 Edition. This GPU took about 18 minutes to complete the probable prime (PRP) test using GeneferOCL2.

The prime was verified on 21 January 2020, 02:35:41 UTC by Igor Keller (IKI) of France using an NVIDIA GeForce GTX 1080 in an Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz with 16GB RAM, running Microsoft Windows 8.1 Professional with Media Center x64 Edition. This computer took about 26 minutes to complete the probable prime (PRP) test using GeneferOCL2. Igor Keller is a member of the Gridcoin team.

The PRP was confirmed prime by an Intel(R) Xeon(R) CPU E3-1240 v6 @ 3.70GHz with 4GB RAM, running Linux Debian. This computer took about 17 hours, 52 minutes to complete the primality test using LLR.

For more details, please see the official announcement.

2020-01-20: PrimeGrid, International Day of Education Challenge

To celebrate UNESCO's International Day of Education, PrimeGrid is having a 1-day challenge on January 24th 2020, 00:00:00 UTC to 23:59:59 UTC.

Tasks from the 321-Sieve project which are downloaded and completed during the challenge will count towards your challenge score.

For more information and discussion, please see the official challenge thread: https://www.primegrid.com/forum_thread.php?id=8971

Best of luck!

2020-01-20: World Community Grid, Microbiome Immunity Project Researchers Create New Method of Predicting Protein Function

The Microbiome Immunity Project has (so far) identified almost 275,000 unique protein structures, returned more than 430 million work units, and led to the creation of an important new scientific technique.

2020-01-20: SRBase, another server outage today (done)

The ASUS mainboard arrived and have the same issues. Now I need to change the CPU cooler.

2020-01-20: SRBase, another server outage today

The ASUS mainboard arrived and have the same issues. Now I need to change the CPU cooler.

2020-01-19: WEP-M+2 Project, 12-digit factor of P2203 has now been found by the project...

...220343 times - still no sign of any larger factors

2020-01-18: SETI@Home, Low available work.

For a couple of reasons, the result table has grown to the point where it no longer fits in main memory. That has been slowing the validators and assimilators, which is causing the result table to grow further.

We'd like to get it down to a manageable size before our Tuesday outage. To that end we are throttling work generation to a rate at which the table size is shrinking. We hope that this rate will increase as the table gets smaller.

So for the next few days work will be hard to come by (but not zero).

2020-01-18: SRBase, base R941 Megaprime

On 28th of December 2019, Max_Pirx, a member of the team Gridcoin has found a megaprime 74*941^348034-1 for base R941. The prime has 1.034.913 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database.

Well done!

2020-01-16: BOINC, BOINC paper published

A paper about BOINC has been published in the Journal of Grid Computing.

2020-01-16: SRBase, server outage today (done)

I have got the 2nd motherboard but have the same issues as before. I need the current power supply to test with.

2020-01-16: MilkyWay@home, New Runs for MilkyWay@home N-Body (1/15/2020)

Happy New Year everyone!

I hope you all had a fantastic new year's celebration. To start off the new year, I thought we should put up a few new runs for Nbody as the previous one have converged nicely. The new runs I put up are:
-de_nbody_01_15_2020_v176_40k__sim__7
-de_nbody_01_15_2020_v176_40k__sim__8
-de_nbody_01_15_2020_v176_40k__sim__9

Thank you all for your continued support, and I wish you all the best for the new decade.

-Eric

2020-01-16: SETI@Home, Why do people run SETI@home?

Check out Stars in Their Eyes?, a research paper from the University of Geneva about why people run SETI@home.

2020-01-15: RakeSearch, Results of the first half of the January 2020!

Dear participants!

Very unusual half of winter with the air temperature between -5..+3 has passed. (But maybe a normal one if we review not last scores but last thousands of years!) The last weeks are not a time of snow, but a time of ice that formed at night from snow melted during the day. And crystals of ice from a nice photography became the basis of badge of this month! 131 participants received it and we congratulate them:

rz and [AF>Amis des Lapins] Phil1966 (L'Alliance Francophone),
KVV and KWSN-SpongeBob SquarePants (The Knights Who Say Ni!),
Mite and [AF>Amis des Lapins] Ceclo (L'Alliance Francophone),
KySU and [AF>Kirass>MPF] Nafrayou (L'Alliance Francophone),
Geoff and [AF>Libristes]MortelKni (L'Alliance Francophone),
Klyon and [AF>Libristes]cguillem (L'Alliance Francophone),
kt kt and [AF>EDLS] Jakez Sulli (L'Alliance Francophone),
arkiss and ????????????? ???? ?????????? ????? (Karelia),
Heikki and Haddington @ team Carl Sagan (Carl Sagan),
Dakkar and blaircart (Sorry for Grand Ol' Partying),
raddoc and scole of TSBT (The Scottish Boinc Team),
Wojtek and Johnbodlis team (Czech National Team),
mcf2020 and Michael H.W. Weber (Rechenkraft.net),
zgf2022 and Technik007[CZ] (Czech National Team),
Leonmer and zelandonii (L'Alliance Francophone),
fstadin and Egon olsen (Meisterkuehler.de Team),
yuryInOz and LeChat51X (L'Alliance Francophone),
AudioElf and Aleksander Parkitny (BOINC@Poland),
DRandolph and Duce H_K_ (L'Alliance Francophone),
koronabora and Exnihilo Curatio (Crunching@EVGA),
Roger Merkl and Thyler Durden@P3D (Planet 3DNow!),
Mark Sechin and Stephen Uitti (Project Blue Book),
ArgentSmith and Dmitriy Otroschenko (Russia Team),
GreyWanderer and Rhodan71 (L'Alliance Francophone),
Bok (SETI.USA) and Thierry (L'Alliance Francophone),
AKolesnichenko and Matthias Lehmkuhl (SETI.Germany),
Laurent Cheylat and Deathlike (Czech National Team),
Morgan the Gold and Johannes Elsner (Planet 3DNow!),
Alexey Chuharev and joe carnivore (Rechenkraft.net),
FourOh (SETI.USA) and owensse (The Planetary Society),
JohanL (BOINC.BE) and Alez (The Scottish Boinc Team),
Oleg (Russia Team) and Wabi CZ (Czech National Team),
Vova (Russia Team) and pah (L'Alliance Francophone),
marsinph (BOINC.BE) and Shaman (Czech National Team),
vaughan (AMD Users) and boceli (Czech National Team),
Dante (TSC! Russia) and ShmyaCluster (Crystal Dream),
Werinbert (Free-DC) and killik (Czech National Team),
genek (BOINC@Poland) and Bigos2 (Czech National Team),
JonS (UK BOINC Team) and Fardringle (TeAm AnandTech),
axels (SETI.Germany) and [SG]ATA-Rolf (SETI.Germany),
m4gu5 (SETI.Germany) and stoneageman (XtremeSystems),
William Lathan (USA) and Ralfy (BOINC Confederation),
jozef j (Russia Team) and respawner (Rechenkraft.net),
Administrator {11320} and [B@P] Daniel (BOINC@Poland),
RFGuy_KCCO ([H]ardOCP) and bcavnaugh (Crunching@EVGA),
BOINC.RU (Russia Team) and ReaDy (Astronomy.Ru Forum),
JagDoc (Planet 3DNow!) and MechWarrior (Ars Technica),
matszpk (BOINC@Poland) and gemini8 (Rechenkraft.net),
blitzzkreeg (Gridcoin) and Diffident (Overclock.net),
Dan Sargent (SETI.USA) and Roadranner (SETI.Germany),
Soderstromm (Gridcoin) and ChelseaOilman ([H]ardOCP),
emoga (TeAm AnandTech) and Vincent Dark (Team China),
whizbang (Ars Technica) and Landjunge (Planet 3DNow!),
ssjy806 (SETIKAH@KOREA) and CoolAtchOk (Russia Team),
Shmya-2 (Crystal Dream) and freestman (Chinese Dream),
Woodles (UK BOINC Team) and [SG]steini (SETI.Germany),
Spritex (BOINC@Denmark) and LCB001 (Hardware Canucks),
Opolis (Crunching@EVGA) and [H]auntjemima ([H]ardOCP),
sergamena (Russia Team) and HK-Steve (Crunching@EVGA),
kashi (BOINC@AUSTRALIA) and hase (SETI-team-hannover),
LordNicky (Russia Team) and n2morrow (SETIKAH@KOREA),
MontanaMax (Team China) and Nikita Yang (Team China),
shirawa@meow (Team 2ch) and muzzdiez (SETIKAH@KOREA),
Dingo (BOINC@AUSTRALIA) and Bulgakoff* (Russia Team),
terry mora (The Geezers) and Paulteo (Crunching@EVGA),
hoarfrost (Crystal Dream).

And some statistics of findings of the first half of the month:
Degree 81: 1869903
Degree 82: 443971
Degree 83: 96092
Degree 84: 18744
Degree 85: 3242
Degree 86: 568
Degree 87: 70
Degree 88: 16
Degree 89: 0
...
Degree 100: 0

Thank you fro attention to the project and participation!

2020-01-14: QuChemPedIA@home, Updates and poll

Dear Quchempedia crunchers!

First generation of our newly generated small molecules is almost finished. Thanks again.

We have two propositions for the new phase of calculations :

1. Make a pause (maybe a month or so), in order to parse and treat the recent calculations, learn from the success and failures of the calculations and then generate new small molecules. Probably with a little bit more than 9 atoms.

2. Take some of the newly generated compounds, add them to a core (BTX) used in the chemistry lab here in Angers (see the abstract of this article https://pubs.rsc.org/en/content/articlelanding/2019/nj/c9nj05804d/unauth#!divAbstract) to demonstrate how we can use our newly generated molecules inside a real system, to show how a fragment can modify the core properties and to serve as a screening example. These calculations are very interesting and can lead to very nice applications (drugs and materials).

Beware that the second choice, means that the molecules will have more than 9 heavy atoms, probably more than 30 and so calculations could take days. The good news is that the next workunits will implement checkpointing. Boinc will not be able to display the real level of progress and will think that the calculation starts again from the beginning. But we've run some tests and the calculations restart from the very last step. The expected calculation times will always be very approximate and unreliable, we will voluntarily choose a slightly high value.

If you choose the first option, we will calculate the BTX ones with our private ressources and we will post a news when we will have treated and generated new small molecules.

Thank you for giving your choices and opinions under this post.

Kindly,
Thomas and Benoit

2020-01-13: SRBase, new 2020 goals published

https://www.mersenneforum.org/showthread.php?t=13196

https://www.mersenneforum.org/showthread.php?t=25111

2020-01-13: PrimeGrid, GFN-524288 Mega Prime!

On 24 December 2019, 08:20:15 UTC, PrimeGrid's Generalized Fermat Prime Search found the Mega Prime:

3214654^524288+1

The prime is 3,411,613 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 3rd for Generalized Fermat primes and 30th overall.

The discovery was made by Alen Kecic (Freezing)of Germany using a GeForce GTX 1660 Ti in an Intel(R) Core(TM) i7-7820X CPU @ 3.60GHz with 32GB RAM, running Microsoft Windows 10 Professional x64 Edition. This GPU took about 51 minutes to complete the probable prime (PRP) test using GeneferOCL5. Alen is a member of the SETI.Germany Team.

The PRP was verified on 24 December 2019, 10:12:18 UTC by John Holmes (John J. Holmes) of the United States using a GeForce GTX 970 in an Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz with 16GB RAM, running Microsoft Windows 10 Professional x64 Edition. This computer took about 2 hours, 4 minutes to complete the probable prime (PRP) test using GeneferOCL3.

The PRP was confirmed prime by an Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz with 32GB RAM, running Microsoft Windows 10 Professional x64 Edition. This computer took about 1 day, 1 hour, 45 minutes to complete the primality test using multithreaded LLR.

For more details, please see the official announcement.

2020-01-13: PrimeGrid, ESP Mega Prime!

On 24 December 2019, 01:28:13 UTC, PrimeGrid's Extended Sierpinski Problem found the Mega Prime:

99739*2^14019102+1

The prime is 4,220,176 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 20th overall. This find eliminates k=99739; 9 k's remain in the Extended Sierpinski Problem.

The discovery was made by Brian D. Niegocki (Penguin) of the United States using an Intel(R) Xeon(R) Gold 6140 CPU @ 2.30GHz with 1GB RAM, running Linux Ubuntu. This computer took about 14 hours, 14 minutes to complete the primality test using LLR. Brian is a member of the Antarctic Crunchers team.

The prime was verified on 24 December 2019, 04:37:31 UTC by Pavel Atnashev (Pavel Atnashev) of Russia using an Intel(R) Xeon(R) E5-2680 v2 @ 2.80GHz with 8GB RAM, running Linux. This computer took about 4 hours, 6 minutes to complete the primality test using LLR. Pavel is a member of the Ural Federal University team.

For more details, please see the official announcement.

2020-01-10: SRBase, server outage today

I need the power supply and video card from the old server to test it with the new. Maybe the mobo is broken. Not a good start.

2020-01-09: WEP-M+2 Project, Project stopped (hopefully temporarily)

due to excessive demand

2020-01-01: NumberFields@home, 2019 Year in Review

So another year has come and gone. It has been a very productive year. Here are the highlights:
1. The results for the septic search, which were completed in 2018, were accepted and published in The Journal of Number Theory.
2. A GPU app was developed for the decic search. Versions were eventually introduced for both Nvidia and AMD cards, and for both the Linux and Windows Platforms. During development, I discovered an opportunity for optimizing the CPU version which was subsequently implemented.
3. The decic app completed the search over ?(?-5) (subfield 5).
4. The decic app completed the search over ?(?-2) (subfield 4).
5. Searches were completed over the lower discriminant bounds for subfields 6 and 7.
6. The search over ?(?2) (subfield 3) progressed further into the higher tiers. We now only have 3 more tiers to go in that search.

Thanks everyone and have a wonderful New Year!

2019-12-31: RakeSearch, Happy New Year!

Dear participants!

On September 24, we made a report about RakeSearch project in the conference Russian Supercomputing Days'2019. Our paper about it was included in an issue of Communications in Computer and Information Science, volume 1129. Due to copyright limitations, we cannot put the full text into public access, but we place a link into the personal account page of any participant who passed the 5000 Cobblestones milestone of the total credit.

Thank you for participation!

2019-12-30: BOINC, View credit stats on Apple devices

A new app for iOS and watchOS lets you view your BOINC credit statistics from Apple devices. It's open source, and you can help develop it.

2019-12-30: SETI@Home, A new fundraiser for SETI storage!

Mr. Kevvy and the GPU Users Group have graciously convened a fundraiser to help modernize our aging storage infrastructure. Thank you Mr. Kevvy and GPUUG!

2019-12-30: WEP-M+2 Project, P2203:130000000 wu's (of 10000 trials each equiv.) processed!

Thanks to all the users. Please keep crunching!

2019-12-29: iThena, Geolocation of network points data

One of the important information in network analysis is the geolocation of network points data.

There is no generally available, one coherent database covering very precise data.

The problem is well known by engineers and researchers.

http://www.eng.tau.ac.il/~shavitt/pub/JSAC2011-Geolocation.pdf
https://orbi.uliege.be/bitstream/2268/107073/1/p53-v41n2h2-uhligA.pdf

There are of course some (not perfect) solutions but often the error is big.

I will probably implement a mechanism enabling the platform user to provide location information for a given client.

This is a longer planning period.

Also remember that providing such information is only optional.
This will definitely not be a requirement.

If you have questions or concerns, I encourage everyone to discuss.

2019-12-29: iThena, Technical breaks in the operation of the BOINC server

I plan to introduce a lot of changes at the beginning of January.

These changes may initially cause system instability.

I need to transport the BOINC server to another location.
It will be associated with a minimum of two longer breaks.

Probable break dates:
1) Today (29/12/2019) in the evening CET [probably several hours];
2) Saturday (04/11/2020) in the afternoon CET [probably several hours];

There are no special long breaks planned between these breaks [there may be smaller, unplanned technical problems].

I will inform you about work and possible changes.

2019-12-27: GPUGRID, Happy new year from GPUGRID...

...we may be late for the merry Christmas wishes, but not for wishing you a wonderful 2020 :)



The project scientists

2019-12-24: PrimeGrid, And Another GFN-262144 Find!!

On 5 December 2019, 08:39:29 UTC, PrimeGrid's Generalized Fermat Prime Search found the Mega Prime:

9125820^262144+1

The prime is 1,824,594 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 14th for Generalized Fermat primes and 82nd overall.

The discovery was made by Yoshimitsu Kato (yoshi) of Japan using a GeForce GTX 1660 Ti in an Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz with 16GB RAM, running Microsoft Windows 10. This GPU took about 22 minutes to complete the probable prime (PRP) test using Genefer OCL2. Yoshimitsu Kato is a member of Team JPN.

The prime was verified on 5 December 2019, 08:41:59 UTC by Igor Keller (IKI) of France using a GeForce GTX 1080 in an Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz with 16GB RAM, running Microsoft Windows 8.1. This GPU took about 26 minutes to complete the probable prime (PRP) test using Genefer OCL2. Igor Keller is a member of the Gridcoin team.

The PRP was confirmed prime by an Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz with 16GB RAM, running Microsoft Windows 10 Professional x64 Edition. This computer took about 16 hours, 30 minutes to complete the primality test using multithreaded LLR.

For more details, please see the official announcement.

2019-12-24: PrimeGrid, GFN-262144 Find!

On 6 November 2019, 11:59:08 UTC, PrimeGrid's Generalized Fermat Prime Search found the Mega Prime:

8883864^262144+1

The prime is 1,821,535 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 14th for Generalized Fermat primes and 80th overall.

The discovery was made by Rod Skinner (rjs5) of the United States using a GeForce RTX 2080 Ti in an Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz with 63GB RAM, running Linux Fedora. This GPU took about 8 minutes to complete the probable prime (PRP) test using Genefer OCL2. Rod Skinner is a member of Intel Corporation team.

The prime was verified on 6 November 2019, 14:33:32 UTC by Tom Greer (tng*) of the United States using a GeForce RTX 2070 SUPER in an Intel(R) Core(TM) i9-9900X CPU @ 3.50GHz with 32GB RAM, running Microsoft Windows 10. This GPU took about 13 minutes to complete the probable prime (PRP) test using Genefer OCL2. Tom Greer is a member of the Sicituradastra. team.

The PRP was confirmed prime by an Intel(R) Xeon(R) E3-1240 v6 CPU @ 3.70GHz with 32 GB RAM, running Debian Linux. This computer took about 17 hours 30 minutes to complete the primality test using LLR.

For more details, please see the official announcement.

2019-12-22: yoyo@home, Project description for Siever and M Queens

The missing description for Siever and M Queens was added. Now also features like checkpointing an progress indicator are described.

2019-12-22: iThena, Merry Christmas and a happy New Year 2020!

I wish you all the best for the upcoming Christmas and a happy New Year!

Many successes, many achievements, many credits and badges in 2020!

2019-12-22: SRBase, server donations

Hello everyone,

I need to switch to a new server soon and added the paypal donations for the server parts on the frontpage. The new server should be 3 times faster than mine with the same power efficiency.

You can find more infos in this thread.

If you are not logged into your account you will see an error on the donation page at the moment.

Thx to everyone to help me out to reach the goal!

2019-12-22: iThena, Possible performance issues

I found problems with server performance / availability on the Internet. I will analyze the problem.

For interesting observations, please contact the forum or my email (lswierczewski at ithena.net).

Sorry for problems ;)

2019-12-21: Universe@Home, Server update

The project server software must be updated.
Unfortunately, this operation must take place today so I apologize for the lack of prior notice.
Over the next few days, downtime will be possible.

2019-12-20: SETI@Home, Some server issues today...

It's the Friday before a holiday week and the servers know it.

The file system containing the beta project uploads directory is having problems, so beta is down until further notice.

This problem may be affecting the rate at which the main project can handle results, so the validation and assimilation queues are getting large, which may affect the rate of work generation.