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PrimeGrid

• Genefer 3.3.4 now live

  Posted: September 28, 2018, 10:02am CEST

  The latest release of genefer (3.3.4) is now released on BOINC labelled as app version 3.20. The client will download the new app automatically, no action is required on your part unless you are using app_info.xml (if you don't know what this means, don't worry). The new version provides a speed-up of around 10% for AVX and FMA3 transforms for n=21, as well as providing support for multithreading. To enable it, create an app_config.xml file in your BOINC/projects/www.primegrid.com directory containing (for 2 threads per task)

  
     
         genefer
         -nt 2
         2
         cpuGFN21
     
  
  

  Any problems or questions, let us know! Please note that as the new release does not affect the OCL code, the GPU app versions remain unchanged.

• Oktoberfest Challenge!

  Posted: September 15, 2018, 1:03pm CEST

  From September 15th, 2018 Primegrid will be running a Cullen Challenge to celebrate Oktoberfest! The wold's biggest Volkfest is held annually in Munich, Bavaria, Germany, with more than six million people from around the world attending. The 7 day Challenge starts at 18:00 UTC and ends on 22nd September exactly one week later at 18:00 UTC. Work units from the CUL (LLR) project, which are downloaded and completed during the challenge will count towards your challenge score. The last Cullen Prime found was 6679881*2^6679881+1 from 2009. We're now testing numbers past 16M, so emotionally due for a prime. For more information and discussion, please head over to the official challenge thread: [www.primegrid.com] Good luck!