20070517, 18:31  #56 
Sep 2004
2×5×283 Posts 
To Geoff.
I removed the latest factors found from all attack sides such sieving and P1 factoring and got a file with 2897 terms. How many terms do you have on yours? Carlos 
20070517, 23:02  #57 
Mar 2003
New Zealand
1157_{10} Posts 
I had just removed the ones found by sieve, 2917 remain. I'll use your sieve file instead, the fewer terms the better :)

20070519, 08:54  #58 
Sep 2004
2×5×283 Posts 
After completing the 2800k2900k range at P1 and almost finishing my sieve range, I updated my sieve file. 2889 terms left.
Last fiddled with by em99010pepe on 20070519 at 08:55 
20070530, 08:16  #59 
Jun 2005
373 Posts 
All right, here we go.
Sieving the first stage is finished, and certainly our attention should be pointed at LLR and the remaining P1 ranges to prepare it. Nevertheless, the sieving part of the next stage is going to take a longer time (given the increased worth of every factor), and has already begun. I'm sieving right now the range 5M25M, and the final number of tests to LLR will probably be around 28000. But, how will we proceed? I suggest that I keep going, crunching what I can on one machine. This would have the advantage of minimising the risk of human error in the factor transmission. Then, when LLR is approaching 4M, we could make the sieving public, and push it together a bit further, say up to 5G, for the whole range 5M25M. And finally, when LLR approaches 5M and we are going to actually need the numbers, we could split the range into slices of 1 M and sieve them as the need advances. What do you think? Better ideas? Is there anything to poll? Yours H. 
20070605, 02:02  #60 
Mar 2003
New Zealand
13×89 Posts 
The FFT sizes used by LLR for the 510 million range will be 512k, 610k, 768k, 896k, 1026k. Instead of reducing the sieve by removing the lowest 1 million n range, we could reduce it just to exclude the smallest FFT size.

20070606, 21:16  #61 
Jun 2005
373 Posts 
That's a good idea. Can you determine and post the change levels? Sieving to 100G is going to be finished around the 21st of June, we'll see then how to proceed. Yours H.

20070607, 22:23  #62 
Mar 2003
New Zealand
13×89 Posts 
Here are the approximate break points between FFT sizes for SSE2 machines:
Code:
FFT size Break point   448/512 4522000 / 4523000 512/640 5126000 / 5127000 640/768 6423000 / 6424000 768/896 7652000 / 7653000 896/1024 8912000 / 8913000 
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