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SRBase - 3 years review
The project has passed the third year.
Compared with last years the following process was made:
2014-2015 - 87M WUs processed, 1 base solved, 314 bases unstarted
2015-2016 - 88M WUs processed, 5 bases solved, 297 bases unstarted
2016-2017 - 99M WUs processed, 5 bases solved, 282 bases unstarted
in total - 274M WUs processed, 11 bases solved, 282 bases unstarted
The computing power was beyond the 40TFLOP mark. KEP is still working on a more precise stats overview and will be released maybe in January 2018 so stay tuned.
The next upcoming llr app will have a new gwnum lib with full AMD Ryzen support but I dont know when it will be released.
Due the lack of available sievefiles there are some gaps in the work generation. The remaining primes for these bases are very high, the tests are going over a million. The project cannot handle so many files into one folder thats why they must be splitted into some batches.
The yoyo@home project took over the sieving part for CRUS / SRBase. More and more new sievefiles will be available in the future in a short time period. If you want to help there enable sieving in prefs.
A big thx to the Gridcoin team for the amazing computing power in the past months and of course all the other users / teams spend their power to bring the project forward.
For those who are interested in the public paper for SRBase this is now ready for [Link] download.. I will add a link on the frontpage soon. If you have any questions about it let us discuss this in th...
Pierre de Fermat's Birthday Challenge in 12 hours!
In less than 12 hours, PrimeGrid's three day [Link] Pierre de Fermat's Birthday Challenge will begin. For the first time ever, this challenge will feature the three smallest Generalized Fermat projects, GFN-15, GFN-16, and GFN-17-Low.
Head on over to the the [Link] challenge's forum thread for more information and discussion.
Fill out a survey to help Cosmology@Home
Hi everyone, graduate student Lo Lee and Professor Peter Darch of the University of Illinois (where we got our start back in 2007) are conducting a survey of Cosmology@Home users for their research. If you have a moment, we'd appreciate if you could fill in the survey at [Link] https://illinois.edu/sb/sec/2695704. Your (completely anonymous and confidential) responses may also help us guide the design of Cosmology@Home in the future. Many thanks!
Online questionnaire about citizen science and volunteer computing
Please help Lo Lee, a first-year doctoral student from Library and Information Science at University of Illinois at Urbana-Champaign, by filling in an [Link] online survey about Einstein@Home and BOINC. Lo Lee is doing a project on citizen science that aims to assess to what extent citizen science can be designed as an inclusive online learning environment to embrace volunteer diversity.[Link] read more
Announcing: Fewer Announcements!
In 2018, we are changing our policies regarding announcement of significant prime discoveries. We're raising the bar so that announcements once again are something special and not just "the prime of the week."
Details and discussion can be found [Link] here.
Another PPS-Mega Prime!
On 13 November 2017, 00:26:44 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,036,447 digits long and will enter [Link] Chris Caldwell's The Largest Known Primes Database ranked 208th overall.
The discovery was made by Joshua Charles Campbell ([Link] Warp Zero) of Canada using an Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz with 64GB RAM, running Linux. This computer took about 42 minutes to complete the primality test using multithreaded LLR. Joshua is a member of the [Link] Canada team.
The prime was verified on 13 November 2017, 18:22:32 UTC by Jon Goral ([Link] [KWSN]John Galt 007) of the United States using an Intel(R) Core(TM) i7 940 CPU @ 2.93GHz with 24GB RAM, running Microsoft Windows 10. This computer took about 6 hour 76 minutes to complete the primality test using LLR. Jon is a member of [Link] The Knights Who Say Ni! team.
For more details, please see the [Link] official announcement.
base S263 cancelled (average app)
I have forgot to change and removed all WUs, 200 WUs were sent out before I noticed that. Please abort all of this batch. Sorry for the trouble.
[wildlife] maintenance issue
When our systems went down last thursday it looks like there was an issue mounting the storage that housed the imagery and video. They're working on this and hope to have a fix soon. Unfortunately this was done right before a holiday weekend, so the fix might not happen until monday.
By citizen science grid
We're having some as yet unexplained slowness with the our BOINC database. There don't seem to be any hardware issues. Temperatures are running normal and all the drives seem good. Yet for some reason the query that fills the "ready to send" queue is running about 10 times slower than it normally does.
Until I get it fixed, it means that on average we're sending out 3 workunits a second rather than 30+.
I'll let you know when I've got it figured out.
New multicore app and WUs
we would like to test our new CPU multicore application for quantum chemistry tasks ("QC"). Since it’s the first time we have a CPU app out, I’ll test the behavior of GPUGRID with a relatively large batch that you will see soon. Workunits are named "*QC309big*".
Here’s some features of the app, in short (subject to change):
* Platform: Linux only for now, generic x64.
* Threads: as many as Boinc decides. I guess it depends on your machine, your preferences, and other running tasks in ways which are obscure to me…
* Run time: about 1 CPU hour per WU (so, shorter if multithreading)
* Credit: computed with the default algorithm (tasks are short, don’t expect much). Bonus mechanism for fast turnaround is still on.
* Known bugs: restarts and checkpoints. This should be mitigated with the “keep in memory when suspended” option. Sorry about that, it’s outside of our control.
* Network behavior: the first time you get a WU of this kind it downloads a Python interpreter (miniconda) and then some open-source packages, and installs them in the project directory. The installation is reused whenever possible.
* Disk usage: could go around 1 GB, perhaps more when tasks are running. Resetting the project should remove everything.
* Memory usage: should be around 1 GB when running.
Depending on the results of this test, we’ll start thinking about other platforms.
Thanks and nice crunching!
Perfect Cuboid: Starting skipped range with more cuboids
In the Perfect Cuboid subproject we have added per user statistics of found cuboids, as well as subproject status page was extended by the common statistics. 11 November at 11:11 UTC we are going to launch the 0-10T range which we skipped from the beginning, which contains almost the same amount of cuboids we've already discovered, and throw out 4 times shorter tasks to give an opportunity for all concerned users to put into the personal statistics a large number of cuboids. So, don't miss the start time.