staff blogs staff keep (relatively) up-to-date logs of their activities in .plan files. These were traditionally available via finger, but we've put them on the web for easier consumption.


New Year 2018

Filed under: clients,project status,stats @ 23:12 UTC

Dear friends,

We hope that you celebrated a happy holiday season and saw the new year in with friends and family wherever you may be.

Another year passes… but we press on. OGR-28 is almost in touching distance. Perhaps by the end of next year, we will have completed it. You can help bring that day closer by telling your friends to help us out. :)

We have made great progress during the year by working together. Friends and strangers, enthusiasts all, from the four corners of the globe in pursuit of a common goal.

On the OGR-28 project, we are making great strides through the second pass, with more than 387 million stubs (out of 524 million) checked once and 50 million verified. We recently re-opened the 8th stub space.

On the RC5-72 project, we check more than 21 million blocks every day. Perhaps we shall reach 5% of all work completed within a month. Graphics cards now exist which can process 5 Gigakeys per second. For comparison, the overall rate of our network back when we were working on the RC5-64 project was 102 Gigakeys per second. Our current network speed processing RC5-72 is over 1.2 Terakeys per second!

We continue to look for ways to optimise our client software; some of the newer GPU clients are increasingly I/O-bound, so we will be releasing new versions with increased buffer sizes for them shortly.

Our friend Sunset has recently created a new core for RC5-72 on ARM64 which is almost 5 times quicker than our existing core. If you have a Raspberry Pi 3 or a Cavium Thunder X2 system, you can make use of it.

We are always on the look out for new projects which we can lend our expertise and experience to. If you have a project in mind or some code to hand, please let us know.

We already experienced our first “megaflush” of the year; 6 million blocks in one day. We like to encourage participation, but would like to remind everyone that holding blocks for extended periods of time can cause wasted, duplicated work to be done by other participants if we happen to need to recycle work for another pass.



A quick update

Filed under: Uncategorized @ 18:44 UTC

We have opened the 22/x stub space on OGR-28 this weekend. In a little over 3 years, we have completed more than 29% of the work necessary to prove the Optimal Golomb Ruler with 28 marks. We have also just passed the ‘300 million stubs completed’ milestone. Over 47,700 of us working together have helped to make this happen.

One of our newest contributors on the coding side, Sunset, has helped us make a native PPC64 client for systems running Linux. She has some experience writing for VMX (which you may know as Altivec) and is hoping to update our existing cores for 64 bit systems. If you have a Power9 system in action, we would love to hear from you.



Quick update – 10 August 2016

Filed under: clients,project status,stats @ 02:18 UTC

Apologies, it has been a while since I published a blog update. The front page of our web site still has a problem, but we are making progress on our projects. A look at OGR-28: 42,000 participants. 900 days. 31 BILLION (I know!) Gnodes checked. 20% completed. We can still complete it by New Year if each of us gets a few friends to join in!

RC5-72 has been in progress for 5,000 days as I write. There is still a long way to go, with only just over 4% of the work completed. To have the help of 120,000 participants is amazing. Thank you for all of your contributions.

Have you downloaded new dnetc client software lately? There are a raft of improvements in the last couple of versions, including speed-ups on some platforms (the latest came out of pre-release two months ago). Moo!


2 year OGR-28 anniversary update!

Filed under: project status,stats @ 22:43 UTC

Dear friends,

We’re happy to announce a new client software version, 2.9112.521, for all major operating systems. These are available on the pre-release page: We would be happy for you to check them out and give us your feedback! Among the improvements are better GPU support, OpenCL on more platforms, and a new AVX2 core for RC5-72 contributed by Yasuhiro Katsui which runs 3.6x faster than the previous code. If you find any issues, please report them to us at We expect to move the build 521 clients to release status after a short time.

As of this writing, we have just passed the second anniversary of the OGR-28 project. With over 36,000 contributors from around the world, we have completed more than 14% of the work necessary to prove the Optimal Golomb Ruler with 28 marks. You can track our progress on, where we’ve recently restored the popular keyrate graphs, which show changes in our network’s speed over time. This one is for OGR-28:

As you might have noticed above, many of our websites are also now available via https. Feel free to update your bookmarks.

We are grateful for all of your contributions. Please tell your friends about our projects, and watch those keyrate graphs go up!



Quick update – 20 January 2016

Filed under: project status @ 22:34 UTC

Dear friends,

This week we celebrated the birthday of our project leader Bovine… and 700 days of searching for the optimal Golomb Ruler with 28 marks! With your help, we have completed 13.61% of the entire work space, and the first 7 hills. (See my earlier blog posts!)

We also learned today that our friends at the Great Internet Mersenne Prime Search ( have discovered the largest prime number known to mankind to date!

Keep telling your friends :) Moo!


Quick update – January 12 2016

Filed under: project status,stats @ 23:52 UTC

Dear friends,

With nearly 35,000 volunteers and 13.38% of the search space completed, we’ve just started on a new OGR range today (8-x) and so daily stubs completed will be higher. We’re still struggling with our web site, but glad that you’re here with us. Keep telling your friends. We need all the help we can get. Moo!


Happy New Year

Filed under: project status @ 19:23 UTC

Happy new year to you from all of us at We are grateful for all of your contributions over the past year and look forward to working with you in the new year as we try to prove the optimal Golomb ruler with 28 marks. Moo!


Quick update – December 4 2015

Filed under: project status @ 20:48 UTC

Our web site has a plain appearance for a few days. Bovine is updating the software that drives its appearance. Please don’t be alarmed and carry on contributing as normal. :) Moo!


Quick update – December 2 2015

Filed under: project status @ 21:38 UTC

Dear friends,

We’ve recently started on a new OGR range (7-x) and so daily stubs completed will be higher. We’re still struggling with our web site, but glad that you’re here with us. Keep telling your friends. We need all the help we can get. Moo!


Another double milestone day! (April 6, 2015)

Filed under: project status @ 06:41 UTC

We completed our 60 millionth stub today! Separately, we welcomed our 18,000th volunteer.. more than double the number of volunteers since November last year. Thank you for all of your help so far. Keep telling your friends; there is still a lot of work for us to do!

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