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Possible systems failures
We seem to be in the early stages of a system failure for several sub-projects. The [Link] proxy server has flatlined and my running jobs monitor is dipping alarmingly. Please check if you are getting tasks flagged as computing failures, and set No New Tasks if so.
[Edit] On closer inspection, it may just be the CMS app. [/Edit]
Obviously I'll apologise if this is a false alarm, but it's the wrong time of day to expect a prompt response from the CERN admins.
By lhc@home classic
base R514 proven
On 8th of September, Deltik, a member of the team Gridcoin found the last prime for base R514.
The prime 30*514^424652-1 has 1.151.218 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database.
Bad Runs Over the Weekend
Sorry about the errors over the weekend. I put up a set of runs that, while tested locally, still seemed to error on the server. The runs are now taken down and should filter out of the queue over the next 24 hours, going to look into it now.
Another PPS-Mega Prime!
On 15 September 2017, 11:01:15 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,031,699 digits long and will enter [Link] Chris Caldwell's The Largest Known Primes Database ranked 203rd overall.
The discovery was made by Randall Scalise ([Link] Randall J. Scalise) of the United States using an Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz with 6GB RAM, running Linux. This computer took about 1 hour 13 minutes to complete the primality test using LLR.
The prime was verified on 15 September 2017, 22:09:16 UTC by Hans-Jürgen Bergelt ([Link] Hans-Jürgen Bergelt) of Germany using an Intel(R) Core(TM) i7-3960X CPU @ 3.30GHz with 8GB RAM, running Microsoft Windows 7. This computer took about 1 hour 49 minutes to complete the primality test using LLR. Hans-Jürgen is a member of the [Link] SETI.Germany team.
For more details, please see the [Link] official announcement.
MacOS GPU version released
GPU requirements are the same as for Windows and Linux versions: AMD (HD 5xxx or newer) or NVIDIA (GTX 4xx or newer) GPU with OpenCL support and at least 2 GB of video memory.
The MacOS GPU version has been confirmed to work on OS X El Capitan and MacOS Sierra. Older MacOS versions have [Link] poor [Link] OpenCL support and may fail to run the GPU version.
By amicable numbers
The 101 letters long FTNBK message was broken.
Please abort all m3_ftnbk* / g3_ftnbk* workunits as they're not needed anymore.
There might be a short break in WU availability as I have to clean up batches that are not needed anymore and prepare new ones.
More info will be posted here: [Link] http://www.enigmaathome.net/forum_thread.php?id=1109
We Need Your Help!
In the past, donations were nice to have, but not critical to our operation. As you likely already know, RackSpace is ending our free hosting. While all of the PrimeGrid admins volunteer their effort, equipment, and electricity, as do all of its members, PrimeGrid needs to find and afford a home.
In choosing a path forward, we have considered both current and ongoing costs, as well as maintaining quality of service at the levels to which we've become accustomed. In doing so, the best option for PrimeGrid is to purchase servers and house them at a paid colocation service.
Moving forward, PrimeGrid needs to cover the 3,500 euro cost of the initial hardware purchase, and then needs to start covering the costs of colocation. Ultimately, we will need to plan for hardware lifecycle as well. We are quite appreciative of the donations we have received towards this effort, and you can see our progress here: [Link] http://www.primegrid.com/donations.php where it quickly becomes evident that we still have a ways to go.
Your contributions are greatly appreciated and will help keep PrimeGrid strong and viable in the years ahead. We have done a lot of great work here, and hope to ensure its continued success.
[wildlife] assimilator issue
It looks like there's an issue with the assimilator. I'm currently traveling and hosting a workshop, but I'm hoping I'll get things back up and running sometime today. Will keep you posted as I know more.
By citizen science grid