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Old 2019-08-30, 09:50   #67
Just call me Henry
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Sep 2007
Cambridge (GMT/BST)

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Originally Posted by pinhodecarlos View Post
Q4. Yes, it’s lasieve5f application, 16e Lattice Sieve V5 on the project status. I can attach the windows binary used there not the Linux one.
5I16e not 5I16f I believe. nfs@home uses a confusing naming system. 5I16f can sieve composite special q
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Old 2019-08-30, 18:39   #68
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Jul 2003
So Cal

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I use 16e, not 16f. There was an issue with 16f when I deployed the sievers and never changed them. The GNFS parameters for 5th order polynomials are

lss: 0
alim: 250000000
rlim: 250000000
lpbr: 33
lpba: 33
mfbr: 67
mfba: 96
rlambda: 2.6
alambda: 3.6

Swap a and r parameters for sieving on the rational side. These are chosen to provide decent yield with relatively low memory use.
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Old 2019-09-15, 07:10   #69
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Feb 2005
Riverside, CA

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Originally Posted by swellman View Post
User e-score post # deg spin?

VBCurtis 1.398E-15 47 6 yes

vebis 1.188E-15 23 5 yes
Gimarel 1.181E-15 61 5 yes
Gimarel 1.176E-15 42 5 yes
I've only tested these so far, but each deg 5 is at least 20% faster than the top-scoring deg 6. Each of the deg 5 have something going for them- the fastest is the lowest-yielding, and vice versa. Once I test a couple Q ranges from each poly to narrow down to a top 3-4, I'll sample 8 or 10 different ranges to see if the slower speed is a good tradeoff for a smaller Q-range (the idea being that avoiding the highest Q's means also avoiding the slowest sieve ranges).
Using Greg's params (except I replaced 67 with 66 for LPB) I'm getting timings around 1.2 sec/rel and yields of 1.2 to 1.5. I've only tested Q=100M and 500M so far, though; much more to come.
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Old 2020-05-08, 06:39   #70
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"Carlos Pinho"
Oct 2011
Milton Keynes, UK

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NFS@Home almost done with sieving, last day my machine has been handling left overs from other clients not processing wus on time.
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Old 2021-02-16, 06:32   #71
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Jul 2003
So Cal

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It split into P75 (just like 2,2330L) x P136.
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