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Forum: Factoring 2022-01-19, 18:00
Replies: 3
Views: 166
Posted By henryzz
You may find https://eprint.iacr.org/2014/397.pdf...

You may find https://eprint.iacr.org/2014/397.pdf interesting
Forum: Factoring 2022-01-19, 17:36
Replies: 27
Views: 820
Posted By henryzz
If you have windows it is possible to get CADO...

If you have windows it is possible to get CADO working on WSL2 although this requires fixing a few broken links.
Forum: Factoring 2022-01-19, 11:29
Replies: 27
Views: 820
Posted By henryzz
If it is an 512 bit RSA number people may be...

If it is an 512 bit RSA number people may be reluctant to factor it without proof of its source. I believe a decent modern pc(or an AWS instance) can factor this in 2 or 3 weeks.
Forum: Programming 2022-01-17, 14:11
Replies: 13
Views: 382
Posted By henryzz
My concern is that one assignment is overwriting...

My concern is that one assignment is overwriting four array elements. Could assign (char) 0 or (char) 1 or '\0' or '\1' to assign one element without complicating things by using the ASCII values of...
Forum: Programming 2022-01-17, 10:52
Replies: 13
Views: 382
Posted By henryzz
Seems odd to me that you needed to do that. Is...

Seems odd to me that you needed to do that. Is this just masking another issue by making the memory allocation bigger?

edit: Could assigning ints to elements of a char array be causing issues? I...
Forum: Forum Feedback 2022-01-13, 20:46
Replies: 23
Views: 527
Posted By henryzz
Does this mean you could make attached pdfs open...

Does this mean you could make attached pdfs open in the browser?
Forum: Msieve 2022-01-04, 08:58
Replies: 4
Views: 228
Posted By henryzz
Msieve should do that itself pretty reliably.

Msieve should do that itself pretty reliably.
Forum: Astronomy 2022-01-04, 08:54
Replies: 83
Views: 6,192
Posted By henryzz
They probably suspected this already but couldn't...

They probably suspected this already but couldn't commit.
Forum: Msieve 2022-01-03, 17:46
Replies: 15
Views: 447
Posted By henryzz
On linux ctrl-z would have been a decent way of...

On linux ctrl-z would have been a decent way of pausing it. fg resumes it.
Forum: Factoring 2021-12-23, 11:05
Replies: 1,000
Views: 123,172
Posted By henryzz
Many of these numbers will have had further ecm...

Many of these numbers will have had further ecm as part of https://mersenneforum.org/showpost.php?p=579659&postcount=958
Also gpu ecm is no longer limited to a max of 2^1018.
Forum: NFS@Home 2021-12-16, 23:16
Replies: 1,898
Views: 168,080
Posted By henryzz
Unfortunately ryanp didn't specify how much ecm...

Unfortunately ryanp didn't specify how much ecm he did but some of the remaining numbers in https://mersenneforum.org/showpost.php?p=579659&postcount=958 are small enough. Judging by some of the...
Forum: Prime Gap Searches 2021-12-14, 12:50
Replies: 59
Views: 24,194
Posted By henryzz
Just submitted a gap I found a while back and...

Just submitted a gap I found a while back and never got around to submitting. This is by far my best gap. I think my first record 30 merit as I generally search for larger gaps with lower merit....
Forum: Factoring 2021-12-13, 12:31
Replies: 1
Views: 384
Posted By henryzz
This is explained in the end game section of...

This is explained in the end game section of http://www.lirmm.fr/~ochem/opn/ and also in https://maths-people.anu.edu.au/~brent/pd/rpb116.pdf


Some of the larger numbers are included because it...
Forum: Msieve 2021-12-10, 12:03
Replies: 2
Views: 4,995
Posted By henryzz
I have attached a version that should work. It...

I have attached a version that should work. It works on my new(to me) 1650 Super.
Forum: Factoring 2021-12-09, 07:46
Replies: 1,000
Views: 123,172
Posted By henryzz
Factored...

Factored 27395631932423126416280468114484772969719691^5-1 =...
Forum: Software 2021-12-07, 14:03
Replies: 178
Sticky: Prime95 30.7
Views: 18,757
Posted By henryzz
Prime95 doesn't output at every step. It runs...

Prime95 doesn't output at every step. It runs 100s of iterations per update. When you paused it will have written a save file wherever it was up to. This will be the point it resumed from. There is...
Forum: carpetpool 2021-12-06, 22:42
Replies: 1
Views: 297
Posted By henryzz
The reason k and b are kept small is that it...

The reason k and b are kept small is that it allows much smaller and faster FFTs.
Forum: Hardware 2021-12-02, 21:46
Replies: 175
Views: 37,730
Posted By henryzz
Can't help feeling that there is a lot of old...

Can't help feeling that there is a lot of old tech in there.
A53 (2012)
DDR3 (2007)
802.11g wifi (2003)
Bluetooth 4.0 (2010)
Forum: Factoring 2021-11-28, 04:43
Replies: 101
Views: 9,299
Posted By henryzz
May have discovered the issue. I think I need to...

May have discovered the issue. I think I need to update CGBN
edit: confirmed
Forum: Factoring 2021-11-27, 22:05
Replies: 101
Views: 9,299
Posted By henryzz
Just tried to upgrade my version of this as I was...

Just tried to upgrade my version of this as I was on a fairly old version and certain numbers were crashing.

Compiling has failed with the following error:

/bin/bash ./libtool --tag=CC...
Forum: Cunningham Tables 2021-11-23, 11:38
Replies: 323
Views: 48,890
Posted By henryzz
Is the plan to do this matrix on a CPU or to pass...

Is the plan to do this matrix on a CPU or to pass it off to a GPU? I get the impression frin https://mersenneforum.org/showthread.php?t=27042 that a GPU would do it far faster although it would need...
Forum: Hardware 2021-11-23, 11:35
Replies: 8
Views: 529
Posted By henryzz
Even with a form of AVX512 are 1st gen Phi cards...

Even with a form of AVX512 are 1st gen Phi cards worth worrying about now? Wouldn't a single modern cpu (Zen 3?) match it in efficiency?
Forum: Information & Answers 2021-11-15, 08:46
Replies: 19
Views: 2,307
Posted By henryzz
Didn't you have a form that could be proved for...

Didn't you have a form that could be proved for all of -1/+1/+5 that could be sieved using polysieve?
Forum: CADO-NFS 2021-11-12, 07:36
Replies: 23
Views: 1,551
Posted By henryzz
Do you have a spare power supply?

Do you have a spare power supply?
Forum: Cunningham Tables 2021-11-09, 23:33
Replies: 323
Views: 48,890
Posted By henryzz
That's weird. My system takes 185s with 3e7 and...

That's weird. My system takes 185s with 3e7 and 322s without bkthresh1

./las -poly 3_748plus.poly -q0 100000000 -A 30 -nq 20 -lim0 500000000 -lim1 300000000 -lpb0 33 -lpb1 34 -mfb0 66 -mfb1 98...
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