20201229, 06:00  #1057 
"Curtis"
Feb 2005
Riverside, CA
5^{2}·11·17 Posts 
I'm still working R3 from 6063G. I won't be the one to hold back the 2021 goal to get R3 to 100k, so I've split 6163G onto a bunch of cores in n=5K chunks (e.g. 5765, 6570, 7075, etc to 100). It's an old Xeon, not very fast, so it'll still take me 6 months or so to get 6063G to 100k.
6061G is just above 70k now, and split into 3 pieces to finish to 100k in the same time frame. 
20201229, 14:15  #1058  
"Mark"
Apr 2003
Between here and the
2·3^{2}·347 Posts 
Quote:


20201229, 17:11  #1059 
"Curtis"
Feb 2005
Riverside, CA
1243_{16} Posts 
I suppose it's time I look into learning how to use prpnet. Thanks for the reminder.

20210107, 17:05  #1060 
"Mark"
Apr 2003
Between here and the
1866_{16} Posts 
Taking R3 35G range to n=100000. I needs to be sieved more deeply first. The factor removal rate is about 1/6 of what it needs to be before testing.
Depending upon how this goes, I will go on to 36G, etc. Last fiddled with by rogue on 20210107 at 17:05 
20210107, 17:30  #1061 
"Nuri, the dragon :P"
Jul 2016
Good old Germany
802_{10} Posts 

20210107, 18:07  #1062 
"Mark"
Apr 2003
Between here and the
2×3^{2}×347 Posts 
Right now I'm using srsieve2cl, which I haven't released yet. Its kicking out slightly more than 1 factor per second at where the sieving was left off. It looks like I can sieve about 48G a day for the 3257 sequences in that range. We'll see where it is tomorrow.
I actually realized that I used the wrong n when estimating the factor removal rate. I need to remove one term every 10 seconds. I will let everyone know how far it has to be sieved with srsieve2cl when it is done. 
20210107, 18:15  #1063  
"Nuri, the dragon :P"
Jul 2016
Good old Germany
322_{16} Posts 
Quote:
48e9 in a single day is a word. What processor are you using if i might ask? 

20210107, 19:01  #1064 
"Mark"
Apr 2003
Between here and the
1100001100110_{2} Posts 

20210108, 13:10  #1065 
"Mark"
Apr 2003
Between here and the
2·3^{2}·347 Posts 
I will revise my estimate to about 32G per day as opposed to what I wrote yesterday. It is easier to get accurate numbers after many hours of runtime. Here is the current line:
p=61209583927, 14.10K p/sec, 83052 factors found at 1.43 sec per factor (last 134 min) so it has been running a little under 20 hours. 
20210109, 06:05  #1066 
May 2007
Kansas; USA
10309_{10} Posts 
Are you sieving only k=35G36G ?
I posted those sieve files for R3 as fully sieved to P=35G using srsieve. What is your test time at n=80K for R3? I suggest that you use n=80K for a test time. This is an extremely prime base. IMHO sieving to 35G times 6 will be a waste of sieving effort. At most I feel like it could be sieved twice as high and that's only if your new siever is much faster than srsieve. It took me a couple months on 68 cores just to sieve k=25G55G to P=35G and I was getting a removal rate close to the LLR test time for n=80K. Last fiddled with by gd_barnes on 20210109 at 06:07 
20210109, 13:40  #1067  
"Mark"
Apr 2003
Between here and the
2·3^{2}·347 Posts 
Quote:
I did a test at n=70000, but you are correct, n=80000 is probably more accurate. When I test this range I should be able to get a fairly accurate estimate of the factor removal rate I need based upon how many tests are skipped due to found primes. With PRPNet I can easily compute the average time to do a test across millions of completed tests. I cannot sieve all k for 35G45G at once with srsieve2cl. I could probably do a range of 2G at a time (with a single worker thread) before running into memory limits of my GPU. When I start sieving the next range, I will take a bigger chunk. With these large k I have not run any tests to determine how much saving there could be by adding more k. I am getting a factor removal rage of about 1 candidate per second at p=64G with srsieve2cl with this range so clearly it needs to sieved more deeply. 

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