What is RakeSearch?

The enormous size of the diagonal Latin squares space makes it unfeasible to enumerate all its objects straightforwardly in reasonable time. So, in order to discover the structure of this space, sophisticated search methods are needed. In RakeSearch project, we implement an application that picks up separate pairs of mutually orthogonal DLSs, which allows to reconstruct full graphs of their orthogonality. You can contribute to our research by running a free program on your computer.

For account creation please use a Crunch_4Science invitation code.

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User of the Day

User profile Profile bowtieguru
Retired technician living near Seattle, webmaster of boinc.link


November 2019 totals
Dear folks!

New project productivity high record of R10 search set in November! 84297 workunits were processed and got the canonical result. In the second half of the month computers of 104 participants (that listed below) found pairs of diagonal Latin squares with a degree of orthogonality >= 86 and 39 of them, that did it for the first time in this November - got a badge! We send our congratulations to:

rz and [AF>Amis des Lapins] Phil1966 (L'Alliance Francophone),
Nex and [AF>Amis des Lapins] chapam (L'Alliance Francophone),
KySU and [AF>Amis des Lapins] Ceclo (L'Alliance Francophone),
ladmo and [AF>Kirass>MPF] Nafrayou (L'Alliance Francophone),
Geoff and [AF>Libristes]MortelKni (L'Alliance Francophone),
Frank and [AF>Libristes]cguillem (L'Alliance Francophone),
tholm and [AF>EDLS] Jakez Sulli (L'Alliance Francophone),
Максим and Karelian Center for Gender Studies (Karelia),
Dakkar and Haddington @ team Carl Sagan (Carl Sagan),
arkiss and blaircart (Sorry for Grand Ol' Partying),
Pyrite and [AF] Skinny06 (L'Alliance Francophone),
Heikki and Johnbodlis team (Czech National Team),
zgf2022 and Michael H.W. Weber (Rechenkraft.net),
gardvor and zelandonii (L'Alliance Francophone),
AudioElf and LeChat51X (L'Alliance Francophone),
Bloodnok and Thyler Durden@P3D (Planet 3DNow!),
koronabora and Exnihilo Curatio (Crunching@EVGA),
HighTech67 and Dmitriy Otroschenko (Russia Team),
cjc_in_484 and [SG-FC] dingdong (SETI.Germany),
Mark Sechin and Wabi CZ (Czech National Team),
AKolesnichenko and Птицы Петрозаводска (Karelia),
Alexey Chuharev and AlexA[boinc.ru] (Russia Team),
TheKillerChicken and AussieGeoff (BOINC@AUSTRALIA),
Russell L Wright and boceli (Czech National Team),
FourOh (SETI.USA) and Shaman (Czech National Team),
marmot (Gridcoin) and ShmyaCluster (Crystal Dream),
Casey ([H]ardOCP) and killik (Czech National Team),
ID4 (SETI.Germany) and Astronomy.Karelia (Karelia),
marsinph (BOINC.BE) and Ralfy (BOINC Confederation),
Dante (TSC! Russia) and [B@P] Daniel (BOINC@Poland),
jrle77 (IPN Mexico) and robbysites (Crunching@EVGA),
Werinbert (Free-DC) and GALAX-ZERO (Planet 3DNow!),
JonS (UK BOINC Team) and ReaDy (Astronomy.Ru Forum),
axels (SETI.Germany) and BritishBob (Overclock.net),
Derivator (Gridcoin) and JLSchro* (Sicituradastra.),
genek (BOINC@Poland) and MechWarrior (Ars Technica),
jozef j (Russia Team) and RATT_Samis (SwissTeam.NET),
Administrator {11320} and hase (SETI-team-hannover),
tom7up (SETI.Germany) and LCB001 (Hardware Canucks),
SHIELD (SETIKAH@KOREA) and hoarfrost (Crystal Dream),
Soderstromm (Gridcoin) and Roadranner (SETI.Germany),
JagDoc (Planet 3DNow!) and Vincent Dark (Team China),
RFGuy_KCCO ([H]ardOCP) and DeleteNull (SETI.Germany),
whizbang (Ars Technica) and [SG]steini (SETI.Germany),
Dingo (BOINC@AUSTRALIA) and DuanJiaming (Team China),
Spritex (BOINC@Denmark) and CoolAtchOk (Russia Team),
shirawa@meow (Team 2ch) and zombie67 [MM] (SETI.USA),
sergamena (Russia Team) and terry mora (Thr Geezers),
PinkFloyd (Russia Team) and muzzdiez (SETIKAH@KOREA),
Kodeks IT (TSC! Russia) and Bulgakoff* (Russia Team),
NekdDrgn (Ars Technica) and genseed (Crystal Dream),
kashi (BOINC@AUSTRALIA) and Shmya-2 (Crystal Dream).

Also, we congratulate four participants that found two pairs with the degree of orthogonality 89:
Exnihilo Curatio from Crunching@EVGA team
Spritex from BOINC@Denmark team
whizbang from Ars Technica team
Administrator {11320}.

Statistics of November 2019 findings:
Degree 81: 3536805
Degree 82: 835310
Degree 83: 176621
Degree 84: 33471
Degree 85: 5565
Degree 86: 863
Degree 87: 126
Degree 88: 11
Degree 89: 4
Degree 90: 1
Degree 91: 0
Degree 100: 0

And overall search statistics at now:
Degree 81: 10076207
Degree 82: 2380309
Degree 83: 500613
Degree 84: 95296
Degree 85: 15659
Degree 86: 2481
Degree 87: 293
Degree 88: 39
Degree 89: 7
Degree 90: 2
Degree 91: 0
Degree 100: 0

Thank you for participation and attention to the project!
1 Dec 2019, 16:54:58 UTC · Discuss

Results of the first half of the November 2019!
Dear participants!

This November is unusually warm. Autumn does not want to give its last weeks to winter, filling them by fog and rains. And maybe the best symbol of the month like this - a moss! We are used to it and often pass by, not paying attention to moss. But it's very unusual plants! Mosses (and generally - bryophytes) is a separate and parallel branch of land plants with different from other plants' internal structure and organization of the lifecycle and maybe it is one of the first forms of life, that began to inhabit the surface of the continents, emerging from the Earth oceans. About four hundreds of millions of years ago, during Silurian and Devonian periods, lines of ancestors of the modern divisions of plants - are dispersed and the bryophyte line strategy was not the most successful - branches of vascular plants spread above the ground and bryophytes left to live in their shadow. But how much benefit they have brought to human civilization during many and many hundreds of years! We have are many reasons to say thanks to them.
In conclusion, we congratulate the next 120 participants whose computers find pairs with a degree of orthogonality >= 86 and brought to their owners the Moss badge:

Nex and [AF>Amis des Lapins] Phil1966 (L'Alliance Francophone),
KySU and [AF>Amis des Lapins] Ceclo (L'Alliance Francophone),
tholm and [AF>Kirass>MPF] Nafrayou (L'Alliance Francophone),
Jason and Byron Leigh Hatch @ team Carl Sagan (Carl Sagan),
Frank and [AF>Libristes]cguillem (L'Alliance Francophone),
arkiss and [AF>EDLS] Jakez Sulli (L'Alliance Francophone),
Dakkar and scole of TSBT (The Scottish Boinc Team),
Heikki and Pavel_Kirpichenko (Astronomy.Ru Forum),
Dennis and [AF] Skinny06 (L'Alliance Francophone),
matali and LeChat51X (L'Alliance Francophone),
zgf2022 and Steve Dodd (The Planetary Society),
SpekAal and eeeeee (Universite de Sherbrooke),
AudioElf and Rhodan71 (L'Alliance Francophone),
FTalento and Dmitriy Otroschenko (Russia Team),
mudpuppie and EarlyBird@Zircons (BOINC@Taiwan),
Millenium and [SG-FC] dingdong (SETI.Germany),
Sebastian and KAMCOBILL (X Grubbers Kick Ass),
DRandolph and Bill F (Worldwide TechServices),
mike765321 and BlisteringSheep (Ars Technica),
koronabora and AlexA[boinc.ru] (Russia Team),
terry mora and Wabi CZ (Czech National Team),
HighTech67 and Tae Hyun Kim (SETIKAH@KOREA),
Mark Sechin and Shaman (Czech National Team),
Nicola LFRNCL and boceli (Czech National Team),
User (Karelia) and [SG]ATA-Rolf (SETI.Germany),
Bok (SETI.USA) and Hurricane (BOINC@AUSTRALIA),
Alexey Chuharev and Astronomy.Karelia (Karelia),
FourOh (SETI.USA) and respawner (Rechenkraft.net),
Casey ([H]ardOCP) and [B@P] Daniel (BOINC@Poland),
marmot (Gridcoin) and RATT_Samis (SwissTeam.NET),
a (SETIKAH@KOREA) and Tom Poleski (BOINC@Poland),
belrassi@P4_3_GHz and NudgeyNR (BOINC@AUSTRALIA),
ale4316 (Ukraine) and Boogyman Munster (US NAVY),
Hoar (Russia Team) and BritishBob (Overclock.net),
marsinph (BOINC.BE) and Chara34122 (Crystal Dream),
KR Center (Karelia) and ReaDy (Astronomy.Ru Forum),
Werinbert (Free-DC) and MechWarrior (Ars Technica),
Dante (TSC! Russia) and KPX (Czech National Team),
artemis8 (SETI.USA) and froggen (BOINC@AUSTRALIA),
fix (Crystal Dream) and bcavnaugh (Crunching@EVGA),
axels (SETI.Germany) and Sengieffe (UK BOINC Team),
JonS (UK BOINC Team) and Vincent Dark (Team China),
genek (BOINC@Poland) and LCB001 (Hardware Canucks),
conf [MM] (SETI.USA) and HK-Steve (Crunching@EVGA),
ALI67 (BOINC@Poland) and Roadranner (SETI.Germany),
jozef j (Russia Team) and [SG]steini (SETI.Germany),
V0d01ey (TSC! Russia) and Bulgakoff* (Russia Team),
Administrator {11320} and muzzdiez (SETIKAH@KOREA),
citerra (Russia Team) and n2morrow (SETIKAH@KOREA),
Darius (BOINC@Poland) and zombie67 [MM] (SETI.USA),
SHIELD (SETIKAH@KOREA) and Paulteo (Crunching@EVGA),
RFGuy_KCCO ([H]ardOCP) and CoolAtchOk (Russia Team),
Timothy Mullican (USA) and Dingo (BOINC@AUSTRALIA),
Soderstromm (Gridcoin) and shirawa@meow (Team 2ch),
blitzzkreeg (Gridcoin) and genseed (Crystal Dream),
JagDoc (Planet 3DNow!) and sergamena (Russia Team),
PinkFloyd (Russia Team) and kim-b-h (BOINC@Denmark),
Shmya-2 (Crystal Dream) and 427jmf (Crunching@EVGA),
whizbang (Ars Technica) and Spritex (BOINC@Denmark),
Natalia (Karelia) and hoarfrost (Crystal Dream).

Thank you for attention to the project and participation!
17 Nov 2019, 12:30:57 UTC · Discuss

Testing of application for Raspberry Pi
Hello folks!

We try to build a RakeSearch R10 application for Raspberry Pi. Currently, it runs on the computer 9257 - it's a Raspberry Pi Model 3B+ through an anonymous platform file - app_info.xml.
Vital note: for computing on Pi you must use a combination of heatsinks and airflow! In our case, we install a small aluminum heatsink on the CPU and USB+Network controller and place the board inside desktop computer air outflow. In these conditions temperature of CPU stabilized at 54°C level.

The application compiled on 3B+ model, under Cortex-A53 CPU. You can download it from here and console version of BOINC client, if need (compiled on the same system also) from here. If you want to try a compute on another model of RPi, please post a message, we try to compile a separate test application.

Thank you for attention to the project and happy crunching!
5 Nov 2019, 20:11:02 UTC · Discuss

October 2019 totals
Dear participants!

October is over and we are summing it up. 61644 results were received, some interesting pairs were found (you can read about this in scientific October update). In the second half of the month, computers of 95 participants found pairs with a high degree of orthogonality and many of them - take a badge (because they couldn’t do it in the first half)! We send our congratulations to:

rz and [AF>Amis des Lapins] Phil1966 (L'Alliance Francophone),
KySU and KWSN-SpongeBob SquarePants (The Knights Who Say Ni!),
tholm and [DPC]Division_Brabant~Cow_tipping (Dutch Power Cows),
Heikki and Byron Leigh Hatch @ team Carl Sagan (Carl Sagan),
arkiss and [AF>Libristes]MortelKni (L'Alliance Francophone),
Kaiser and [AF>Libristes]cguillem (L'Alliance Francophone),
Maroly and [AF] Skinny06 (L'Alliance Francophone),
mcf2020 and Martin Skoda (Czech National Team),
Mr. Man and Konstantin Desyatkin (Russia Team),
Progger and Rhodan71 (L'Alliance Francophone),
mudpuppie and Thyler Durden@P3D (Planet 3DNow!),
Sebastian and Roberto (L'Alliance Francophone),
Peta Hunt and Sergey Zhikhorev (Russia Team),
Millenium and Jerzy_Przytocki (BOINC@Poland),
terry mora and Stanley A Bourdon (BOINCstats),
faliqisbah and AlexA[boinc.ru] (Russia Team),
AlexxSaigon and Bigos2 (Czech National Team),
Mark Sechin and boceli (Czech National Team),
Jesse Viviano and Shaman (Czech National Team),
G. C. Greubel and killik (Czech National Team),
Bok (SETI.USA) and ShmyaCluster (Crystal Dream),
User (Karelia) and robbysites (Crunching@EVGA),
Vitalii Koshura and Astronomy.Karelia (Karelia),
FourOh (SETI.USA) and [B@P] Daniel (BOINC@Poland),
Casey ([H]ardOCP) and ReaDy (Astronomy.Ru Forum),
ale4316 (Ukraine) and Boogyman Munster (US NAVY),
Oleg (Russia Team) and Sabroe_SMC (Planet 3DNow!),
Dante (TSC! Russia) and NudgeyNR (BOINC@AUSTRALIA),
KR Center (Karelia) and bcavnaugh (Crunching@EVGA),
Francis Butts (USA) and RATT_Samis (SwissTeam.NET),
cc-smokey (CC-Team) and Sengieffe (UK BOINC Team),
artemis8 (SETI.USA) and KPX (Czech National Team),
Werinbert (Free-DC) and HK-Steve (Crunching@EVGA),
meadoel (BOINCstats) and Roadranner (SETI.Germany),
conf [MM] (SETI.USA) and Vincent Dark (Team China),
Administrator {11320} and hoarfrost (Crystal Dream),
Wizardling (Dopefish) and LCB001 (Hardware Canucks),
jozef j (Russia Team) and CoolAtchOk (Russia Team),
citerra (Russia Team) and DuanJiaming (Team China),
V0d01ey (TSC! Russia) and zombie67 [MM] (SETI.USA),
necavi (BOINC@Poland) and Scoope (Rechenkraft.net),
RFGuy_KCCO ([H]ardOCP) and genseed (Crystal Dream),
Timothy Mullican (USA) and Spritex (BOINC@Denmark),
infecticide (Gridcoin) and Dingo (BOINC@AUSTRALIA),
whizbang (Ars Technica) and Chipotle (Ars Technica),
PinkFloyd (Russia Team) and sergamena (Russia Team),
427jmf (Crunching@EVGA).

Thank you for your attention to the project and participation!
2 Nov 2019, 14:12:44 UTC · Discuss

Results of the first half of the October 2019!
Dear folks!

Next month, corresponding totals, new badge and results! The symbol of this month is maple leaf! Computers of 111 participants brought it to their owners and we send our congratulations to:

KySU and [AF>Amis des Lapins] Phil1966 (L'Alliance Francophone),
T420 and [DPC]Division_Brabant~Cow_tipping (Dutch Power Cows),
terry and [AF>Amis des Lapins] Xe120 (L'Alliance Francophone),
super and Byron Leigh Hatch @ team Carl Sagan (Carl Sagan),
tholm and [AF>Libristes]cguillem (L'Alliance Francophone),
ladmo and Michael H.W. Weber (Rechenkraft.net),
arkiss and Martin Skoda (Czech National Team),
Dakkar and Steve Dodd (The Planetary Society),
matali and Exnihilo Curatio (Crunching@EVGA),
Goddnes and Plejaden (Boinc Team Gruppe 2004),
Leonmer and Thyler Durden@P3D (Planet 3DNow!),
zgf2022 and Rhodan71 (L'Alliance Francophone),
{11316} and Roberto (L'Alliance Francophone),
Solo Man and EarlyBird@Zircons (BOINC@Taiwan),
Franklin and Donn Pike (USAF Ret) (Gridcoin),
Peta Hunt and Tomasz Kaczmarek (BOINC@Poland),
Pagliacci and Johannes Elsner (Planet 3DNow!),
Millenium and arjanscholl (Dutch Power Cows),
HighTech67 and Jerzy_Przytocki (BOINC@Poland),
koronabora and Sergey Zhikhorev (Russia Team),
cjc_in_484 and Wabi CZ (Czech National Team),
AlexxSaigon and ShmyaCluster (Crystal Dream),
Mark Sechin and Bigos2 (Czech National Team),
Roger Merkl and Shaman (Czech National Team),
Guido Coppens and [SG-2W]Kurzer (SETI.Germany),
Bok (SETI.USA) and respawner (Rechenkraft.net),
ebahapo (BRASIL) and Ralfy (BOINC Confederation),
FourOh (SETI.USA) and Fardringle (TeAm AnandTech),
Speculant (4chan) and [B@P] Daniel (BOINC@Poland),
Casey ([H]ardOCP) and JLSchro* (Sicituradastra.),
marmot (Gridcoin) and NudgeyNR (BOINC@AUSTRALIA),
NeoGen (AMD Users) and Michael S Barth (Gridcoin),
kekkonen (Karelia) and ReaDy (Astronomy.Ru Forum),
artemis8 (SETI.USA) and Boogyman Munster (US NAVY),
fix (Crystal Dream) and Sabroe_SMC (Planet 3DNow!),
genek (BOINC@Poland) and bcavnaugh (Crunching@EVGA),
conf [MM] (SETI.USA) and [SG]steini (SETI.Germany),
Derivator (Gridcoin) and Vincent Dark (Team China),
inugamikoubou@hangul and LCB001 (Hardware Canucks),
jozef j (Russia Team) and froggen (BOINC@AUSTRALIA),
citerra (Russia Team) and hoarfrost (Crystal Dream),
Wizardling (Dopefish) and Roadranner (SETI.Germany),
Administrator {11320} and HK-Steve (Crunching@EVGA),
V0d01ey (TSC! Russia) and yuntao.chen (Team China),
Joerg paleface Burkel and CoolAtchOk (Russia Team),
necavi (BOINC@Poland) and muzzdiez (SETIKAH@KOREA),
Timothy Mullican (USA) and nabializm (BOINC@Poland),
Dirk Broer (AMD Users) and n2morrow (SETIKAH@KOREA),
Soderstromm (Gridcoin) and Paulteo (Crunching@EVGA),
JagDoc (Planet 3DNow!) and DuanJiaming (Team China),
blitzzkreeg (Gridcoin) and evatutin (kvt.kurskstu),
whizbang (Ars Technica) and PinkFloyd (Russia Team),
Spritex (BOINC@Denmark) and Peter (BOINC@AUSTRALIA),
Woodles (UK BOINC Team) and Kodeks IT (TSC! Russia),
MontanaMax (Team China) and Dingo (BOINC@AUSTRALIA),
427jmf (Crunching@EVGA).

We also want to draw your attention to the news, related to scientific background of our project.

Thank you for attention to the project and participation!
17 Oct 2019, 19:56:50 UTC · Discuss

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©2019 The searchers team, Karelian Research Center of the Russian Academy of Sciences