On 13 May 2013 12:41:57 UTC, PrimeGrid's Proth Prime Search project found a world record prime Fermat divisor: 57*2^2747499+1 Divides F(2747497) The prime is 827,082 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 1st for prime Fermat divisors and 101st overall. Incidentally, it is also a new record for "weighted" prime Fermat divisors. The discovery was made by Marshall Bishop (Wintermute) of the United States using an AMD Quad-Core AMD Opteron(tm) Processor 2374 HE with 32 GB RAM running Linux. This computer took about 2 hours 28 minutes to complete the primality test using LLR. The prime was verified by [AF>Le_Pommier>MacGeneration.com] Sloughi of France using an Intel(R) Xeon(R) CPU E5645 @ 2.40GHz with 12 GB RAM running Mac OS X. This computer took about 4 hour and 46 minutes to complete the primality test using LLR. [AF>Le_Pommier>MacGeneration.com]Sloughi is a member of the L'Alliance Francophone team. For more details, please see the official announcement.
Server down (temporarily I hope). Trying to fix the "unzip" problem. See my recent posts to Number Crunching: Status and Plans May 25th, and Results Discrepancies for more info. Eric.
Listen to the research team discuss the recently completed Help Conquer Cancer project and hear how the results are being used: Wednesday, May 29, 2013 at 12:00pm ET / 16:00 UTC
Hey guys, I have put some new work on the long queue. These workunits are small and don't require any special algorithms, so should be no problems. With these workunits, I'll be looking at the folding of a small peptide using a special force field. The biophysics community uses different force fields to represent the motions of proteins and other molecules, and we are attempting to test a new one so we can check some previous work and feel comfortable in work we are planning to do. Happy crunching. Nate
ABC@home may (again) be unavailable for some periods over the next few days.
The power of World Community Grid has enabled the Computing for Clean Water project researchers to discover some unexpected properties about the flow of water through carbon nanotubes. They believe that this might lead to ways of tuning filters, based on these nanotubes, to increase efficiency. More details about their exciting new scientific discovery will come with the publication of their research paper.
I started 2 separation de_separation_p-79-dr8-rev-4 and de_separation_p-79-dr8-rev-5 If you notice anything out of sorts with these runs please post here. Thank you,
Finally we did it! POEM@HOME is now running on new hardware. Hopefully this step will decrease our lately discovered bottlenecks for a long time. The data has been synced from the old server, so you shouldn't notice the switchover. If you experience any problems nevertheless, please reply here. Endlich ist es soweit! POEM@HOME läuft jetzt auf neuer Hardware. Hoffentlich behebt dieser Schritt die kürzlich entdeckten Flaschenhälse für eine lange Zeit. Sämtliche Daten wurden mit dem alten Server abgeglichen, also sollte der Wechsel nicht bemerkbar sein. Wenn es trotzdem zu Problemen kommen sollte, bitte antwortet hier.
Hi, If you have a Titan, please try out the new ACEMD beta application (You will need the option "run test jobs" selected too) Please report any problems here on this thread. MJH
UPDATE: The move is scheduled for today, Saturday May 25th, at 14:00 UTC We will soon be migrating all PRPNet ports on prpnet.mine.nu over to the prpnet.primegrid.com server. Please see this thread for more information or to discussion the migration.
Since there are more ARM devices active for HAT, I increased the deadline to 3 days.
The first project to run on World Community Grid, the Human Proteome Folding project, is coming to a close. They have added greatly to the knowledge of protein structures, providing their results to other scientists via their data base resources.
I apologize for all whose WU's were cancelled today in the process of stopping the old ones and re-sending the new fixed ones. At the beginning I didn't realize the effect and extend of the cancellation (since it was not intended to work this way), but I see now that many hours of computation and credits were lost due to this. It seems to have been a bug in a script that had not been seen before until now, so we will refrain from using it until it has been fixed. I realize that the computation time is very important for everyone so we hope that such hiccups won't happen too often in the future. Many thanks for your patience and calculations!
There will be a short downtime this evening, Thursday May 16th, between approximately 22:30 and 23:30 UTC on both the www.primegrid.com and prpnet.primegrid.com servers. Downtime is expected to be approximately 5 or 10 minutes.
We are probably merging the two updates at this point and update the applications to support titans and gtx780. It all depends how long it takes to get gtx780. gdf
Hey guys, We've added a new way for users to donate to GPUGRID. We've set ourselves up as an Amazon Associate, and if you click the link in our donations page before making a purchase with Amazon, we'll receive some small percentage of the value of your purchase. This way you can make a donation while going about your normal purchases. We are also considering updating the advertising banner(s) at the bottom of the page. We will likely keep it non-intrusive, non-annoying text, much as it is now. Certainly no flash animations. As always, Thanks!
Deja vue all over again! There will be work on the datacenter's network tonight, May 14th, from approximately 23:00 UTC until 00:00 UTC. This will affect only www.primegrid.com; prpnet.primegrid.com is in a different datacenter and will not be affected. Short-term packet loss and/or increased latency may occur during this time period. We apologize for any inconvenience this may cause.
There will be work on the datacenter's network tonight, May 13th, from approximately 23:00 UTC until 00:00 UTC. This will affect only www.primegrid.com; prpnet.primegrid.com is in a different datacenter and will not be affected. Short-term packet loss and/or increased latency may occur during this time period. We apologize for any inconvenience this may cause.
Hi, I have submitted some small workunits on folding. If they work fine, I will submit more, they are in the short queue. gdf