News archive

Holiday
From 16.8 to 26.8 I will be on holiday so I will not have physical or internet access to the server.

Server is onto a power unit supply that can gives up to 1h of current in case of external blackout.
I hope that Marphy low did not apply during the holiday :)

Thanks
15 Aug 2018, 14:16:15 UTC · Discuss


Three millions of unique CF ODLS
Dear participants of the ODLK and ODLK1 projects!

You have overcome the boundary of 3,000,000 CF ODLS!

Thanks for your work!
2 Aug 2018, 12:55:24 UTC · Discuss


The contest for the best optimization of the program
Dear participants of the project!

Probably, there are many programmers among you.

A contest is announced to the best optimization of program of search the orthogonal LS for a given LS of order 10.
This is a very important program!

The author of this program is colleague S. Belyaev.
The program was created and posted for general use on the Math Help Planet forum on February 29, 2016.
http://mathhelpplanet.com/viewtopic.php?p=261989#p261989

You can download the archive from the following link
https://yadi.sk/d/2sX-6d_Vphfsx

The source code of the program in archive is available.
22 Jul 2018, 5:51:25 UTC · Discuss


How to protect intellectual property?
A very important topic.
We will discuss.

How did it all start?
Begin with this message on the forum boinc.ru
http://forum.boinc.ru/default.aspx?g=posts&m=90566#post90566

I quote

Statistics for the list of 2 000 697 CF ODLS
(download the link in the signature)


And in the signature for the post we see the link:
List of CF ODLS https://cloud.mail.ru/public/8Tbm/JjcinpEVu (2 000 697)

Since there are no links to the sources of results in the post (in the file by reference - I do not know whether there are links or not, since I the file did not download), naturally, the question arises: "Where are the drozhishki?"

The question on the forum boinc.ru I can not ask, because I locked there for 50 years.
Then I ask the administrator of the BOINC-project ODLK1 ice00.
I get the following answer:
Sorry, I had give him the results some days ago, but I can point him
that it cannot use them as he seems to ignore copyright.

Well, all as I expected.
After receiving the results from the administrator ODLK1, citerra puts them on the boinc.ru forum without specifying any sources of results.

I would like to note that earlier I have repeatedly drawn attention to the fact that the results of the ODLK and ODLK1 BOINC projects are the intellectual property of these projects and when copying the results for any purpose it is necessary to indicate a reference to the source of the results.
At the same time, I showed a copyright sign in both BOINC projects, for example, in the ODLK project
©2018 (C) Progger

But all my calls were in vain.
The results were copied by citerra and laid out without any reference.
Now the story repeats itself, now with the results obtained from the project administrator ODLK1.

This is the beginning. The continuation followed quite stunning.
I suggest that everyone will get acquainted with the beginning and advise how to protect the intellectual property of BOINC projects.

PS. Russian-speaking participants can read the topic here
https://boinc.progger.info/odlk/forum_thread.php?id=69
9 May 2018, 11:33:13 UTC · Discuss

Two million unique CF ODLS
Dear participants!

Your work has brought remarkable results.
At the moment we have in the data base two million unique CF ODLS.

Thank you for your participation!
1 May 2018, 8:23:59 UTC · Discuss


Profile creation and spam protection
Profile creation is enabled. Recaptcha is enabled for registration. After a while, spam users will be deleted.
19 Feb 2018, 8:17:46 UTC · Discuss


Application odlksym3
Application for the final search of all symmetric squares.
The current version is only for linux amd64, and I forgot to make a progress notification. Soon there will be an improved version for all platforms.
31 Jan 2018, 15:34:09 UTC · Discuss


The information about DB
DB is combined from ODLK and ODLK1 projects.

Here you can see DB to January 1, 2018.
https://yadi.sk/d/JE_nAvVk3R9635

View details
https://boinc.progger.info/odlk/forum_thread.php?id=1&postid=1280#1280

January 16, 2018 posted the first part of the database, containing 500,000 unique CF ODLS
https://yadi.sk/d/Of8_1d-b3RW43F

The second part of the database currently contains 128,825 CF ODLS.
27 Jan 2018, 16:31:25 UTC · Discuss


Project url changed
Now site uses SSL: https://boinc.multi-pool.info/latinsquares/
16 Jan 2018, 11:22:29 UTC · Discuss


Search in tails
Added application odlkmax for searching in the tails of rulers 57, 58, 59, 60, 61.
26 Dec 2017, 9:10:49 UTC · Discuss


New rulers
The rulers 58 and 59 have been added to the ODLK1 project.
Now we check in this project six rulers: 57, 58, 59, 60, 61, 66.
The check is performed from the beginning of rulers and in natural order.
All these rulers contain 100% CF.
15 Dec 2017, 9:05:10 UTC · Discuss


News
The statistics in project ODLK1

5-7.11.17 50 0
8.11.17 76 0
9.11.17 541 2
10.11.17 872 2
11.11.17 959 10
12.11.17 1356 6
13.11.17 939 8
14.11.17 1439 2
15.11.17 1496 0
16.11.17 2486 10
------
Total - 10254 CF ODLS

A unique group of three orthogonal pairs of DLS is found!

 0 1 2 3 4 5 6 7 8 9
 3 4 1 2 8 9 5 6 0 7
 9 7 3 4 5 8 1 2 6 0
 2 0 5 9 1 6 7 8 3 4
 8 3 4 6 7 1 2 0 9 5
 6 5 8 0 3 2 4 9 7 1
 1 6 9 5 0 7 8 4 2 3
 5 9 6 7 2 3 0 1 4 8
 7 8 0 1 6 4 9 3 5 2
 4 2 7 8 9 0 3 5 1 6
sq1

 0 1 2 3 4 5 6 7 8 9
 3 4 5 2 8 9 1 6 0 7
 9 7 3 4 1 8 5 2 6 0
 2 0 1 9 5 6 7 8 3 4
 8 3 4 6 7 1 2 0 9 5
 6 5 8 0 3 2 4 9 7 1
 1 6 9 5 0 7 8 4 2 3
 5 9 6 7 2 3 0 1 4 8
 7 8 0 1 6 4 9 3 5 2
 4 2 7 8 9 0 3 5 1 6
sq2

 0 1 2 3 4 5 6 7 8 9
 3 4 7 2 8 9 5 6 0 1
 9 7 3 4 5 8 1 2 6 0
 2 0 5 9 1 6 7 8 3 4
 8 3 4 6 7 1 2 0 9 5
 6 5 8 0 3 2 4 9 1 7
 1 6 9 5 0 7 8 4 2 3
 5 9 6 7 2 3 0 1 4 8
 7 8 0 1 6 4 9 3 5 2
 4 2 1 8 9 0 3 5 7 6
sq3

Square:
 0 1 2 3 4 5 6 7 8 9
 1 2 3 0 5 8 7 9 4 6
 7 0 6 5 3 4 9 1 2 8
 8 6 9 4 7 3 5 2 0 1
 6 9 7 1 8 0 4 3 5 2
 5 8 1 7 2 9 0 6 3 4
 2 4 0 6 9 1 3 8 7 5
 4 3 8 2 6 7 1 5 9 0
 9 7 5 8 0 6 2 4 1 3
 3 5 4 9 1 2 8 0 6 7

17 Nov 2017, 4:51:59 UTC · Discuss



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