Sieving Riesel & Sierp base 16
1 Attachment(s)
Hey all,
I'm currently sieving Riesel and Sierp base 16 together for the remaining unreserved k's for n=200K500K as a slightly lower priority effort. The optimum sieve depth for breaking off n=200K300K is P=12T. This assumes the very likely possibility that we won't complete testing both drives to n=300K within ~1 year and so only takes into account the rate of factor removal from the n=200K300K portion of the file; not the entire file. I'm not going to make a formal sieving drive out of it but if anyone would like to help, please post a reservation here. The file sieved to P=8T is attached to this posting. I'll remove factors from it as we progress. It takes one 64bit 2.4 Ghz core ~5 days to sieve a P=1T range using 64bit sr2sieve. When we're at P=12T, I'll remove the n=200K300K part of the file and post some files in the Riesel base 16 drive for testing. When/if we find some more primes on Sierp base 16 before reaching n=200K, I'll remove those k's from the file. We can also continue sieving n=300K500K as a very low priority effort if anyone wants to. These are good bases to run the much fastertesting powerof2 bases. Iirc, even with the new PFGW, as a general rule, I've found that they test ~2.53 times faster than nonpowerof2 bases for the same size kvalue and # of digits. (Yes, the smaller kvalues can test much faster than the larger ones, even on nonpowerof2 bases using the new PFGW.) Reservations: [code] gd_barnes P<=3T complete Flatlander P=3T4T complete gd_barnes P=4T5T complete Flatlander P=5T8T complete gd_barnes P=8T12T complete (Sieving is paused as we break off and test n=200K300K.) [/code]Gary 
Taking 3T4T.
Where is the file? 
I wasn't going to post it until I found out if there was any interest. I've now attached it to the 1st posting here. Thanks for helping. :smile:
Gary 
P=2T3T is done. Taking P=4T5T.

Taking 5T6T.

Taking 6T7T.

1 Attachment(s)
3T4T is complete.

P=4T5T is complete. I'll reserve more later next week after getting back from a business trip.

1 Attachment(s)
5T6T is complete.

1 Attachment(s)
6T7T is complete.
Taking 7T8T. 
1 Attachment(s)
7T8T is complete.
Due to hardware issues I've had to go back to 32bit Windows, so I won't be sieving for a while. 
All times are UTC. The time now is 16:14. 
Powered by vBulletin® Version 3.8.11
Copyright ©2000  2021, Jelsoft Enterprises Ltd.