View Single Post
 2009-08-14, 05:40 #1 gd_barnes     May 2007 Kansas; USA 2·5,113 Posts Sieving drive Riesel base 6 n=150K-1M This is a sieving drive for the 8 k's remaining on Riesel base 6 for n=150K-1M. Karsten kindly provided his file that is sieved to P=0.8T as a starting point. Sieving up to P=43T is needed for the n=500K-1M range for the 5 remaining k's. Like before, sr2sieve is what we will use. It is recommended that you run 64-bit sr2sieve on a 64-bit machine. Let us know if you need the executable or more detailed instructions on using it. Here is an example of the command to execute at the command prompt: sr2sieve -p 35e12 -P 40e12 -i sieve-riesel-base6-500K-1M.txt The above would be if you were sieving P=35T-40T. The file is listed after the "-i" command and is the actual file name that is posted in a link below. Feel free to name it something shorter if you want or use the "srwork" older convention where you don't have to specify a file name. When complete, you should have a factors.txt file. Just post the file here in this thread or if it is too big, please Email the file to me at: gbarnes017 at gmail dot com A P=1T range should take ~2 CPU days on a modern 64-bit machine. Please reserve ranges in multiples of P=1T and plan to reserve no more than ~7-10 days of work at a time. When making reservations, please post your estimated completion date. This can be seen in sr2sieve about one minute after you start your sieve. Here is a link to the latest sieve file: http://www.noprimeleftbehind.net/cru...e6-500K-1M.txt. All factors up to P=43T have been removed. We will remove additional factors as the drive progresses to slightly speed up sieving. Reservations: Code:  P-range reserved by status est. completion date 0T-0.8T kar_bon complete 0.8T-32T Lennart complete 32T-35T gd_barnes complete 35T-39T Flatlander complete 39T-43T Batalov complete The sieving drive is complete! This is a very exciting base that can easily be proven within the next few years. All help is greatly appreciated! Thank you, Gary Last fiddled with by gd_barnes on 2010-06-27 at 02:21 Reason: update status