## Other

drummers-lowrise
 1) Message boards : General discussion : Maths whiz solves 48-year-old multiplication problem (Message 128855) Posted 403 days ago by Doc No Wired Article: https://www.wired.com/story/mathematicians-discover-the-perfect-way-to-multiply/ EDIT: And while the new algorithm is important theoretically, in practice it wonâ€™t change much, since itâ€™s only marginally better than the algorithms already being used. â€œThe best we can hope for is weâ€™re three times faster,â€ van der Hoeven said. â€œIt wonâ€™t be spectacular.â€ I dunno - speeding up GFN 3x sounds pretty spectacular to me![/i] 2) Message boards : Number crunching : Using Fourier Transforms To Multiply Numbers (Message 124713) Posted 500 days ago by Doc No Dunno if it's of any use for PrimeGrid, but I still found this fascinating and figured others would too: http://blog.robertelder.org/fast-multiplication-using-fourier-transform/ 3) Message boards : Number crunching : PrimeGrid is Moving!!! (Message 122778) Posted 552 days ago by Doc No Yeah and congratulations! Here's to an uneventful migration :) 4) Message boards : General discussion : Researchers Discover a Pattern to the Seemingly Random Distribution of Prime Numbers (Message 120551) Posted 617 days ago by Doc No Yup, that title caught my eye: https://motherboard.vice.com/en_us/article/pa8dw8/prime-number-pattern-mimics-crystal-patterns This at the end really got me thinking: Additionally, the paper claims to have produced an algorithm that â€œenables one to predict primes with high accuracy.â€ While the usefulness of such a tool is not yet known, it marks another step towards conclusively solving the enigma of prime numbers. Well, that would certainly change things around here! 5) Message boards : Number crunching : New badges for TDP (and more)! (Message 113317) Posted 863 days ago by Doc No Nice - thanks for the new badges Michael! I was a little surprised to see mine. Woot! 6) Message boards : Number crunching : PrimeGrid is Moving!!! (Message 109977) Posted 994 days ago by Doc No Seriously, the servers are ordered, so that part's set in stone now. The geek in me would love to know the details of what you guys ordered, but I understand if you don't want to open yourself up for discussion, second guessing, etc. :) 7) Message boards : Number crunching : Too many slots (Message 109292) Posted 1020 days ago by Doc No Something may have locked up the slots folder. There are two I can think of off the bat. First, and most likely, is a Virus Scanner. It is best to disable scanning of the BOINC folders. Second, and least likely, is the windows indexing service. During it's scan something may have changed and it went into an unknown state and could not recover. Excellent points. And you can exclude folders from the indexing service too. I think by default the BOINC folders are excluded but it wouldn't hurt to double check. 8) Message boards : Number crunching : Windows 10 Creator Update problem warning (Message 109291) Posted 1020 days ago by Doc No Ouch - I have the creators update and haven't seen any issues on the two machines it's on. I think I also blocked MS from updating video drivers too - I just checked and I'm still using the NVIDIA drivers. I found this: https://www.howtogeek.com/302595/how-to-stop-windows-10-from-automatically-updating-hardware-drivers/ I don't remember going through that but maybe I did; it's been a while. 9) Message boards : Number crunching : App names (Message 109290) Posted 1020 days ago by Doc No It's been frustrating for me for some time to try to match project names on the PrimeGrid home page to the forums to the projects listed in my account page to the names used in the Primegrid preferences in my account. It's pretty hard to correlate the different names if you aren't in here all the time. And figuring out which projects use which applications is often not obvious either. It would be nice if there were either consistent terminology used or a crosswalk somewhere that summarized all the various places projects are used. 10) Message boards : Number crunching : For the betterment of BOINC (Message 109289) Posted 1020 days ago by Doc No Tuning a multi-threaded app is complex, and is about as far from "one-size-fits-all" as you can get. The optimal number of threads depends on numerous factors. This is not necessarily directed at Michael but more a general comment: It would be lovely if BOINC could be given a range of parameters to test, then set it loose to iterate through each set of parameters (say, 10 tasks in each iteration or whatever to get a decent baseline) and once it has iterated through all the possible combinations, pick the set that worked the best. I'm thinking back to the good 'ol days of computing with things like memmaker in MS DOS or Conflict Catcher on the Mac - utilities that would automatically iterate through different configuration sets and then pick the best configurations. They weren't perfect but they worked the majority of the time. You can always still go in and tweak things manually, obviously (and indeed both of those tools not only let you do that, but more importantly gave you help in managing those manual tweaks! Saving of configs for reuse, etc.). Obviously there are problems as the nature of tasks within the same project change over time which impacts some of these parameters and overall throughput, changing the mix of projects running on one machine can throw things off, etc. However I think that any automation in helping figure out the right parameters for optimum performance would still be amazing even if it still has some caveats to it. Not only would more work get done, but it would help save resources (electricity, cooling, etc.). Spread across all BOINC users I have no doubt that the return would be significant. And with the pervasiveness of the Internet, being able to share and test other's config sets for people running similar workloads on similar hardware would be significant as well. Incremental efficiencies scale over large user bases dramatically :)

Next 10 posts