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Search: Posts Made By: VBCurtis
Forum: Hardware 2020-10-30, 01:43
Replies: 5
Views: 103
Posted By VBCurtis
I don't recall if msieve benefits from avx-512;...

I don't recall if msieve benefits from avx-512; perhaps a pair of compilation attempts, with vbits=256 and 512. Data set would be the one from the msieve benchmark thread- that matrix should be big...
Forum: Lounge 2020-10-29, 23:27
Replies: 936
Views: 50,896
Posted By VBCurtis
:tu:

:tu:
Forum: Lounge 2020-10-29, 23:25
Replies: 43
Views: 609
Posted By VBCurtis
If you got a error every so often, and now run...

If you got a error every so often, and now run 4-6x longer than that period without an error, you have your answer that XMP is correlated to the problem. If you were getting one error a day, I'd let...
Forum: Hardware 2020-10-29, 23:16
Replies: 5
Views: 103
Posted By VBCurtis
I'm very interested to hear how the KNL system...

I'm very interested to hear how the KNL system runs. Thinking about buying one for NFS work- sieving or matrices. Please let me know if you're interested in running a test or two so I can justify...
Forum: NFS@Home 2020-10-29, 21:33
Replies: 3
Views: 1,591
Posted By VBCurtis
We have basically nothing in the e-small and...

We have basically nothing in the e-small and f-small queues. I hope they're only going to do the regular 15e queue!
Forum: Lounge 2020-10-29, 20:36
Replies: 43
Views: 609
Posted By VBCurtis
XMP = telling the motherboard to go faster than...

XMP = telling the motherboard to go faster than "stock" to run the memory at whatever speed the memory claims it can run at.

If you disable that XMP option, your memory speed will slow down to...
Forum: Aliquot Sequences 2020-10-29, 00:57
Replies: 432
Views: 30,849
Posted By VBCurtis
Job posted to 16e queue thread: ...

Job posted to 16e queue thread: https://mersenneforum.org/showthread.php?p=561395#post561395

Gimarel's second poly proved fastest, and with highest yield. A 32/33 LP hybrid appears a bit faster...
Forum: NFS@Home 2020-10-29, 00:55
Replies: 9
Views: 583
Posted By VBCurtis
QUEUED AS C196_3366_2224 Aliquot 3366 index...

QUEUED AS C196_3366_2224

Aliquot 3366 index 2224, a C196, is ready for 16e-small:
n:...
Forum: Prime Gap Searches 2020-10-29, 00:00
Replies: 106
Views: 11,254
Posted By VBCurtis
This search isn't my cup of tea, but those charts...

This search isn't my cup of tea, but those charts and the work they represent are prehhhhhhtty! Nice work, sir.
Forum: Aliquot Sequences 2020-10-27, 22:31
Replies: 432
Views: 30,849
Posted By VBCurtis
My best from CADO is 9.61e-15 according to...

My best from CADO is 9.61e-15 according to cownoise.
I'll test-sieve it against the Gimarel polys, but I expect inferiority.
Forum: Miscellaneous Math 2020-10-27, 21:35
Replies: 35
Views: 2,334
Posted By VBCurtis
What, exactly, is curious about this output? ...

What, exactly, is curious about this output? What are you trying to tell us?

You say "crack RSA" like it's one thing. Which RSA number do you think you can crack? I mean, I can crack RSA-100 in...
Forum: Hardware 2020-10-27, 21:33
Replies: 34
Views: 2,898
Posted By VBCurtis
I've noticed these bare CPUs on ebay on occasion,...

I've noticed these bare CPUs on ebay on occasion, but have never found a matching motherboard for a reasonable price, or even clearly and obviously compatible.
What boards work? I mean actually for...
Forum: Aliquot Sequences 2020-10-27, 15:23
Replies: 432
Views: 30,849
Posted By VBCurtis
I'd just let it run; root-opt will only take a...

I'd just let it run; root-opt will only take a couple hours, and it's not like I'll be waiting on you Wednesday in any case.
Forum: Aliquot Sequences 2020-10-27, 03:38
Replies: 432
Views: 30,849
Posted By VBCurtis
I'm at 6000 @ 42e7, calling it quits. I agree...

I'm at 6000 @ 42e7, calling it quits. I agree that's enough.

I also agree that Gimarel's records plus the two CADO efforts Ed and I put in are easily enough poly select. I'll test-sieve the best...
Forum: Aliquot Sequences 2020-10-25, 19:25
Replies: 432
Views: 30,849
Posted By VBCurtis
4800 curves complete at 42e7. I'm moving one...

4800 curves complete at 42e7.
I'm moving one machine to poly select for this number, while the other 20 cores continue on ECM at this size.

Poly select is on CADO, 5e6 to 5e7 with incr 4620,...
Forum: Conjectures 'R Us 2020-10-23, 23:01
Replies: 1,051
Views: 69,383
Posted By VBCurtis
And I'll get the sieve file for 6-10G to BOINC in...

And I'll get the sieve file for 6-10G to BOINC in the next couple weeks, getting that region to 500k and reducing the variety of n-depths by one more.
Forum: ONeil 2020-10-23, 02:35
Replies: 28
Views: 525
Posted By VBCurtis
You also fail at a grasp of mersenne factoring. ...

You also fail at a grasp of mersenne factoring.

Hint: testing k=1 in trial factoring, versus a prp test. No ,not the same computational length. No.

Edit: Wait, do you mean 2*p-1, or 2^p-1? ...
Forum: ONeil 2020-10-23, 02:30
Replies: 28
Views: 525
Posted By VBCurtis
We already have the speed. You don't. Your...

We already have the speed. You don't. Your methods are slow, and reflect no comprehension of factoring.

You don't even grasp how long it would take to read primes from a text file, versus...
Forum: ONeil 2020-10-23, 01:42
Replies: 28
Views: 525
Posted By VBCurtis
You can move on to other tests already- all of...

You can move on to other tests already- all of the factors your methods could find have already been found for exponents below 4 billion or so.

You haven't the slightest idea of the mathematics of...
Forum: Aliquot Sequences 2020-10-22, 21:08
Replies: 432
Views: 30,849
Posted By VBCurtis
Yea, my silicon is a bit dated: 2x 10-core Ivy...

Yea, my silicon is a bit dated: 2x 10-core Ivy Bridge xeon @2.6ghz, 1x 12-core haswell xeon @2.5ghz.

My choices for B1 across the board are based on the lowest B1 that get k=2 and are bigger than...
Forum: Aliquot Sequences 2020-10-22, 19:05
Replies: 432
Views: 30,849
Posted By VBCurtis
I got 1440@15e7 done. I ran on 30 cores, which...

I got 1440@15e7 done. I ran on 30 cores, which makes your curve count... staggering! Our combined effort so far is about 16% of a T60.

I've shifted to B1=42e7; 4e8 uses k=6 and less memory,...
Forum: Factoring 2020-10-22, 18:17
Replies: 61
Views: 2,505
Posted By VBCurtis
Thanks for confirming, Ryan! T70 is often...

Thanks for confirming, Ryan!

T70 is often represented by curves at B1=2.9e9 or so. If that level is complete, then T75 curves are what is useful now- that's B1=7e9 or bigger. That's one curve...
Forum: Cunningham Tables 2020-10-22, 08:56
Replies: 188
Views: 20,834
Posted By VBCurtis
What relevance does this information have to do...

What relevance does this information have to do with deciding which to factor first?
Forum: ONeil 2020-10-22, 08:54
Replies: 9
Views: 218
Posted By VBCurtis
You only get the really fast replies when you...

You only get the really fast replies when you post really terrible stuff, and do it with pride.
Forum: ONeil 2020-10-22, 05:21
Replies: 9
Views: 218
Posted By VBCurtis
This is the slowest form of trial factoring...

This is the slowest form of trial factoring available. You have exhibited zero knowledge of the structure of mersenne factors.

You've never seen "2kp+1"? You could start there.

EDIT: Wait,...
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