What is ODLK1?

BOINC-project ODLK1 continues to solve the problem of BOINC-project ODLK.
The project generates a database of canonical forms (CF) of diagonal Latin squares (DLS) of order 10 having orthogonal diagonal Latin squares (ODLS).
The necessary definitions for the theme can be found here:

Join ODLK1

User of the Day

User profile Profile modesti
Why should I tell you anything about my age, my living, my work? It’s permanently changing! :-D The only thing that remains since 2007 is BOINC...


Lightning bolt
There was a lightning bolt on 1/4/2024 in the night that damage (e.g. they broke) many electrical devices in the area (1Km^2).
Internet connection were restored only in the morning (as provider is at 200m distance of the server and it was damaged too).

Even if the server is behind a power supply, it get in non operational state (e.g the data disk was disconnected), maybe due to the heavy electrical current it passes onto the battery power supply.

Every disk of the server were un-mount from it and tested in another machine and all data were ok, even if the server did not boot properly.

Now it is running in emergency mode (e.g. it need a manual start up, so if it restart from eventual current blackout, it will no boot) and I will monitoring if all is going right.

During the weekend, I will work on fix it, so the server will be disconnected for some times during the day.

Remember that if the internet connection is on and the server is off, you can see some message here: http://boinc-status.multi-pool.info/ about his state.

Please, remember to set up a backup BOINC project in case of emergency. Thanks.
3 Apr 2024, 17:56:28 UTC · Discuss

New K-Tuple competition
With the new year we organized a new K-Tuple competition:


The competition will last 3 months and is for finding new result about some k-tuple open problems (there are 7 tasks).

Unless this Boinc project were all contribute to find solutions in latin squares field donating CPU power, the competition is for people that like to code programs and experiment with mathematics to find new solution by them-self.

For this project instead, the DB with all the solutions will be available as soon as November and December months will be finished to being processed for dividing the solution by their ranks.

5 Jan 2024, 12:26:43 UTC · Discuss

Server problems

during the holiday one disk of the server suddenly died, so it gets unavailable.

Unfortunately I come back from holiday a week later, so all workunits and credits were already time out at that time.

Disk died on 20 Aug during the day. The DB is the one of 8:00 as it from a clean backup (all WU and result where not touched from the disk damages, however some WU may be missed into the DB for credits, but not for the results collected).

As the server were using an old SO that soon will go out of update, I go for installing even the new version of the server, for having years of updates.

Now there is still some problems in configuring all the services as there are incompatibility from old to new libraries, so you should considerate to reactivate your ODLK1 calculation for the next week at least.

However, bookmark this page: http://boinc-status.multi-pool.info/

This is in another server, so in case of problems you can see the state of ODLK1 there (unless the internet connection is broken, as both uses the same one).

9 Sep 2023, 11:09:55 UTC · Discuss


from tomorrow I will be on holiday for max 15 days without server access, so be sure to add a backup Boinc project in case of server problem.
11 Aug 2023, 11:20:13 UTC · Discuss

New BOINC project
In the BOINC project Gerasim@Home, one of my projects "Symmetric Tuples from Sequential Primes" is launched.

Please participate in the "Get Symmetrical Tuples" Application!
14 Jul 2023, 5:25:54 UTC · Discuss

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