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Search: Posts Made By: chris2be8
Forum: NFS@Home 2020-10-19, 16:05
Replies: 25
Views: 1,260
Posted By chris2be8
QUEUED AS f62_139m1 ...

QUEUED AS f62_139m1

(62^139-1)/97857258923339 from the Brent tables:

# Built Sun Oct 18 17:00:27 2020
# Estimated SNFS difficulty 250, GNFS equivalent 180, GNFS difficulty 236, degree 6
n:...
Forum: Factoring 2020-10-19, 15:48
Replies: 35
Views: 1,463
Posted By chris2be8
On Linux you can use something like: ecm ......

On Linux you can use something like:

ecm ... | tee -a ecm.log | grep -i factor


That writes all output to ecm.log (or whatever you call the log file) and writes just lines containing factor to...
Forum: Hardware 2020-10-17, 15:22
Replies: 8
Views: 308
Posted By chris2be8
Try running the live CD with the NVMe plugged in...

Try running the live CD with the NVMe plugged in but not being used, and compare power draw with when it's not plugged in. That should isolate its power draw. You probably want to compare both cases...
Forum: NFS@Home 2020-10-16, 15:43
Replies: 36
Views: 1,617
Posted By chris2be8
f45_151p1 is done: p95 factor:...

f45_151p1 is done:

p95 factor: 31472543189852063608351206619774185000278966152980269366831825030893781824906736840787066198347
p154 factor:...
Forum: FactorDB 2020-10-14, 16:07
Replies: 448
Views: 40,447
Posted By chris2be8
That's a known problem due to factordb not...

That's a known problem due to factordb not interpreting ## the same way as the software it uses for primality testing. Syd has been told about this but hasn't found time to fix it.

In the meantime...
Forum: NFS@Home 2020-10-14, 15:58
Replies: 36
Views: 1,617
Posted By chris2be8
Inserting commas into the number of relations I...

Inserting commas into the number of relations I get 1,232,422,380 which is much larger than the number of relations that should be in the file (https://escatter11.fullerton.edu/nfs/crunching_es.php...
Forum: NFS@Home 2020-10-13, 20:06
Replies: 36
Views: 1,617
Posted By chris2be8
And I've built a matrix for f45_151p1. About 62...

And I've built a matrix for f45_151p1. About 62 hours remain so I should have a result on Friday.

Chris
Forum: NFS@Home 2020-10-13, 16:13
Replies: 36
Views: 1,617
Posted By chris2be8
We have progress: ...

We have progress:

chris@sirius:~/factordb/f45_151p1$ gzrecover -p f45_151p1.dat.gz | remdups 1250 -v >f45_151p1.dat.cut2
Starting program at Tue Oct 13 16:55:26 2020
allocated 2621384 bytes for...
Forum: NFS@Home 2020-10-13, 05:59
Replies: 36
Views: 1,617
Posted By chris2be8
f45_151p1 seems to be broken. I downloaded the...

f45_151p1 seems to be broken. I downloaded the relations and set msieve -nc1 going. From relation 82596681 onwards they all seem to get error -15 (I've not read the whole log, it's 72Gb). It got to...
Forum: NFS@Home 2020-10-11, 15:56
Replies: 25
Views: 1,260
Posted By chris2be8
f57_142p1 is on the wrong queue.

Hello,

Sorry for the abiguity in my post, I meant sieve f57_142p1 with the 15e siever, but on the 15e_small queue. Can you move it from the 15e queue to 15e_small (it's not started sieving yet so...
Forum: NFS@Home 2020-10-10, 15:53
Replies: 25
Views: 1,260
Posted By chris2be8
QUEUED AS f57_142p1_2nd_try on 15e_small ...

QUEUED AS f57_142p1_2nd_try on 15e_small

(57^142+1)/9081974645657051345350287190506431773271039081219156713449250 from the Brent tables:

# Parms passed Fri Oct 9 18:04:10 2020
# SNFS...
Forum: NFS@Home 2020-10-02, 18:47
Replies: 25
Views: 1,260
Posted By chris2be8
Forgot to say: 1: I'll do LA for 48^148+1 ...

Forgot to say:

1: I'll do LA for 48^148+1

2: Can a mod please move my post saying f38_158p1 is factored to the 15e_small thread.

Chris (wishing I'd had another cup of coffee before making my...
Forum: NFS@Home 2020-10-02, 15:52
Replies: 25
Views: 1,260
Posted By chris2be8
(48^148+1)/5308417 from the Brent tables: #...

(48^148+1)/5308417 from the Brent tables:

# Built Thu Oct 1 19:31:23 2020
# Estimated SNFS difficulty 251, GNFS equivalent 181, GNFS difficulty 243, degree 6
n:...
Forum: NFS@Home 2020-10-01, 15:55
Replies: 74
Views: 8,562
Posted By chris2be8
f38_158p1 is done: p71 factor:...

f38_158p1 is done:

p71 factor: 15528512191797056652470622651694131408292490585487682208687187204694061
p147 factor:...
Forum: NFS@Home 2020-09-28, 15:54
Replies: 36
Views: 1,617
Posted By chris2be8
f38_158p1 has built a matrix. About 57 hours...

f38_158p1 has built a matrix. About 57 hours remain so I should have a result on Thursday.

Chris
Forum: Math 2020-09-26, 15:46
Replies: 8
Views: 936
Posted By chris2be8
Would it work for GFNs, b^2^n+1 where b is an...

Would it work for GFNs, b^2^n+1 where b is an arbitrary base? There are enough possible GFNs that there should be some interesting cases small enough to test in a reasonable time.

Chris
Forum: NFS@Home 2020-09-25, 18:46
Replies: 25
Views: 1,260
Posted By chris2be8
Hello, Please extend f38_158p1 sieving range...

Hello,

Please extend f38_158p1 sieving range to 130M. I miscalculated how far I would need to sieve and it's not going to get enough relations by 110M.

Chris
Forum: NFS@Home 2020-09-25, 15:52
Replies: 25
Views: 1,260
Posted By chris2be8
QUEUED AS f45_151p1 (45^151+1)/46 from the...

QUEUED AS f45_151p1

(45^151+1)/46 from the Brent tables:

# Built Thu Sep 24 19:25:29 2020
# Estimated SNFS difficulty 250, GNFS equivalent 180, GNFS difficulty 248, degree 6
n:...
Forum: Hardware 2020-09-24, 15:30
Replies: 36
Views: 2,184
Posted By chris2be8
The prompt with a # should mean it's running as...

The prompt with a # should mean it's running as root. Try id before and after sudo su to confirm that.

The authentication failure from su is probably because the system would want root's password...
Forum: NFS@Home 2020-09-22, 15:55
Replies: 25
Views: 1,260
Posted By chris2be8
(45^151-1)/630788854724946116735362931053539250547...

(45^151-1)/63078885472494611673536293105353925054750194716086374535711136045644 from the Brent tables:

# Built Mon Sep 21 08:22:11 2020
# Estimated SNFS difficulty 250, GNFS equivalent 180, GNFS...
Forum: NFS@Home 2020-09-22, 15:45
Replies: 484
Views: 33,006
Posted By chris2be8
f33_164p1 is done: p60 factor:...

f33_164p1 is done:

p60 factor: 138213871256738395676655491591099308787223728615572092566737
p60 factor: 440060081822445484822799154677276221880207573449714920591289
p69 factor:...
Forum: NFS@Home 2020-09-16, 16:13
Replies: 484
Views: 33,006
Posted By chris2be8
f24_181p1 is factored: p66 factor:...

f24_181p1 is factored:

p66 factor: 181917286624175232138400200142698122799103113613224386935244822531
p150 factor:...
Forum: Msieve 2020-09-16, 15:58
Replies: 7
Views: 294
Posted By chris2be8
I've got one system with a GPU in it where I...

I've got one system with a GPU in it where I don't use the GPU for screen output (it doesn't have the right sort of connector for the KVM switch I use). I had to update settings in the BIOS to make...
Forum: Factoring 2020-09-16, 15:51
Replies: 8
Views: 455
Posted By chris2be8
The Pollard Rho method is described in detail in...

The Pollard Rho method is described in detail in The Art of Computer Programming volume 2 by Knuth. Pages 384-386 in the third edition. That should tell you nearly everything you would want to know...
Forum: Information & Answers 2020-09-15, 15:26
Replies: 9
Views: 692
Posted By chris2be8
2^2197+1 is much too big to factor with yafu on a...

2^2197+1 is much too big to factor with yafu on a single computer. It would need a large supercomputer to do in a reasonable time such as a few years.

The first step for 2^n+1 or 2^n-1 is to look...
Showing results 1 to 25 of 1000

 
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