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Search: Posts Made By: chris2be8
Forum: Mlucas 2022-01-24, 16:25
Replies: 22
Views: 717
Posted By chris2be8
Are there any user controls for core_ctl? Eg can...

Are there any user controls for core_ctl? Eg can it be told not to isolate any cores if the phone is plugged into a charger? Energy saving isn't needed then.
Forum: Factoring 2022-01-21, 16:40
Replies: 29
Views: 1,018
Posted By chris2be8
What model is your CPU and how many cores has it...

What model is your CPU and how many cores has it got? Just saying it's i9 isn't enough (there are several models of i9).

What polynomial did you find for the 100 digit test number? That will tell...
Forum: Factoring 2022-01-19, 16:37
Replies: 29
Views: 1,018
Posted By chris2be8
There are several programs you could use to...

There are several programs you could use to factor it:

ggnfs - this works better if you also have msieve. Search for factMsieve.pl or factmsieve.py for scripts to drive it.

yafu - this will...
Forum: Information & Answers 2022-01-13, 16:35
Replies: 9
Views: 445
Posted By chris2be8
Where did the plaintext and cyphertext come from?...

Where did the plaintext and cyphertext come from? Do you know what software was used to encrypt the plaintext to generate the cyphertext? Or what it did if it's not a standard product? Is this a...
Forum: Information & Answers 2022-01-12, 16:33
Replies: 9
Views: 445
Posted By chris2be8
I assume you know the 512 bit public key used to...

I assume you know the 512 bit public key used to encrypt the data. To decrypt it you need the private key, which is the factors of (part of) the public key. That is a few days work on your PC.

If...
Forum: Mlucas 2022-01-10, 16:34
Replies: 22
Views: 717
Posted By chris2be8
What is in /proc/cpuinfo ? It sounds as if Linux...

What is in /proc/cpuinfo ? It sounds as if Linux thinks it only has CPUs 2 and 3.
Forum: NFS@Home 2022-01-06, 16:38
Replies: 11
Views: 579
Posted By chris2be8
f43_169m1 is done: p116 factor:...

f43_169m1 is done:

p116 factor: 15705236888829250237535152935045193665607917110810069116036047732745616291945546101171538049288595502021184729298589
p135 factor:...
Forum: Hardware 2022-01-06, 16:24
Replies: 33
Views: 773
Posted By chris2be8
Is there scope to vary how much ventilation the...

Is there scope to vary how much ventilation the shed has so it won't get too cold inside it in winter? Eg opening windows in spring and closing them in autumn?
Forum: FactorDB 2022-01-02, 18:01
Replies: 170
Views: 53,956
Posted By chris2be8
I'm working on them from the bottom up. If you...

I'm working on them from the bottom up. If you keep away from the lowest few hundred PRPs you should be OK (anything over 1500 digits should be safe for at least a month).
Forum: NFS@Home 2022-01-02, 17:52
Replies: 11
Views: 579
Posted By chris2be8
f88_131p1 is done: p68 factor:...

f88_131p1 is done:

p68 factor: 20330898055785367727731783769559683541167740610670182546051762477347
p133 factor:...
Forum: Msieve 2021-12-31, 16:44
Replies: 15
Views: 462
Posted By chris2be8
I still use factMsieve.pl because I know perl but...

I still use factMsieve.pl because I know perl but not python. I have added the following to it:

if ( -f "$DATNAME.chk") { # Restart from checkpoint if we have one
logwrite("#### Attempting...
Forum: GPU Computing 2021-12-31, 16:25
Replies: 20
Views: 920
Posted By chris2be8
What operating system are you using? Where...

What operating system are you using?

Where have you installed mfaktc?

Open a terminal window, cd into wherever you have installed mfaktc and run if from there. (Under Linux or other UNIX...
Forum: NFS@Home 2021-12-29, 16:57
Replies: 275
Views: 23,552
Posted By chris2be8
f72_137p1 is done: p73 factor:...

f72_137p1 is done:

p73 factor: 2147894684061012146385746117542774975651388900368432134110670818287213171
p155 factor:...
Forum: NFS@Home 2021-12-28, 17:27
Replies: 275
Views: 23,552
Posted By chris2be8
f72_137p1 built a matrix on 24 Dec (I've been...

f72_137p1 built a matrix on 24 Dec (I've been visiting relatives so couldn't report it sooner). LA should finish in about 15 hours.
Forum: NFS@Home 2021-12-23, 16:45
Replies: 275
Views: 23,552
Posted By chris2be8
f68_139p1 is done: p63 factor:...

f68_139p1 is done:

p63 factor: 224647812592760600326196253165119100869848476555272762238348577
p66 factor: 833805773199233163085869449086392748511533238351576033435971887571
p93 factor:...
Forum: NFS@Home 2021-12-19, 16:56
Replies: 254
Views: 27,667
Posted By chris2be8
QUEUED AS f43_169m1 ...

QUEUED AS f43_169m1

(43^169-1)/285742169075772110713388874 from the (extended) Brent tables:

# SNFS difficulty is 254., GNFS equivalent is 182, GNFS difficulty is 250, degree 6
# phi 169 43 1...
Forum: NFS@Home 2021-12-18, 16:57
Replies: 275
Views: 23,552
Posted By chris2be8
f68_139p1 has built a matrix. LA should finish in...

f68_139p1 has built a matrix. LA should finish in about 110 hours.
Forum: Msieve 2021-12-17, 16:56
Replies: 14
Views: 823
Posted By chris2be8
Sorry, I did the diff the wrong way round, so it...

Sorry, I did the diff the wrong way round, so it shows how to change the update back to the original value. So you need to change 32 to 16 to use 512 bit arithmetic.
Forum: NFS@Home 2021-12-16, 17:12
Replies: 254
Views: 27,667
Posted By chris2be8
QUEUED AS f88_131p1 ...

QUEUED AS f88_131p1

(88^131+1)/15560598069498009208640109612066751344745793847864150319 from the Brent tables:

# Built Wed Dec 15 17:57:23 2021
# Estimated SNFS difficulty 256, GNFS equivalent...
Forum: Msieve 2021-12-16, 17:00
Replies: 14
Views: 823
Posted By chris2be8
I've never used -gpucurves, I always let it...

I've never used -gpucurves, I always let it default to however many it wants to use. Which seems to work well enough.

Sadly CUDA arch 3.0 does not appear to support CGBN, so you probaby won't be...
Forum: NFS@Home 2021-12-14, 17:00
Replies: 275
Views: 23,552
Posted By chris2be8
f68_139m1 has finished: p70 factor:...

f68_139m1 has finished:

p70 factor: 1555951446738972548515538894385866925498883934413362943651296490597003
p118 factor:...
Forum: Msieve 2021-12-14, 16:56
Replies: 14
Views: 823
Posted By chris2be8
Here's my log from poly selection for a c93: ...

Here's my log from poly selection for a c93:

Sat Dec 11 06:19:51 2021 =>nice -n 19 "/home/chris/msieve-svn1022.cuda3/trunk/msieve" -np1 -nps...
Forum: NFS@Home 2021-12-10, 17:01
Replies: 254
Views: 27,667
Posted By chris2be8
QUEUED AS f72_137p1 ...

QUEUED AS f72_137p1

(72^137+1)/9657577010327887553290626571 from the Brent tables:

# Built Thu Dec 9 21:20:09 2021
# Estimated SNFS difficulty 256, GNFS equivalent 183, GNFS difficulty 227,...
Forum: NFS@Home 2021-12-10, 16:52
Replies: 275
Views: 23,552
Posted By chris2be8
f42_157p1 is done: p56 factor:...

f42_157p1 is done:

p56 factor: 97488059048026568472478122531022162634433290151083685281
p154 factor:...
Forum: NFS@Home 2021-12-06, 16:37
Replies: 254
Views: 27,667
Posted By chris2be8
QUEUED AS f68_139p1 ...

QUEUED AS f68_139p1

(68^139+1)/18114901589744769679318650781322139 from the Brent tables:

# Built Sun Dec 5 16:50:23 2021
# Estimated SNFS difficulty 255, GNFS equivalent 184, GNFS difficulty...
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