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Forum: Aliquot Sequences 2020-09-19, 17:06
Replies: 587
Views: 25,420
Posted By VBCurtis
I lied- 13^141 and 13^143 are in progress, not...

I lied- 13^141 and 13^143 are in progress, not yet complete. Odd powers up to 13^139 are complete.
Forum: PrimeNet 2020-09-17, 21:09
Replies: 7
Views: 287
Posted By VBCurtis
mersennne.org does something similar- I run ECM...

mersennne.org does something similar- I run ECM with B1=80k, B2=100*B1, and every 5 curves I run earns credit of 8 standard B1=50k curves. It's not a perfect conversion, but it works well enough for...
Forum: PrimeNet 2020-09-17, 16:01
Replies: 7
Views: 287
Posted By VBCurtis
This is correct- he meant the odds of finding a...

This is correct- he meant the odds of finding a factor have nothing to do with the size of the input number. That's why the data you want to collect would not be useful- none of the 3 methods he...
Forum: PrimeNet 2020-09-17, 02:14
Replies: 7
Views: 287
Posted By VBCurtis
This isn't quite true- when a T35 is finished,...

This isn't quite true- when a T35 is finished, there is a 1/e chance of missing a 35 digit factor (if one exists).

It's more accurate to say that after a T35 is done, chances of a 30 or smaller...
Forum: Factoring 2020-09-16, 03:16
Replies: 6
Views: 232
Posted By VBCurtis
It's generally the size of the input, or the size...

It's generally the size of the input, or the size of the original composite that generates the polynomial (for example, you might have a 25 digit factor already, but doing SNFS on the original number...
Forum: Aliquot Sequences 2020-09-15, 18:40
Replies: 587
Views: 25,420
Posted By VBCurtis
I am terminating all the newly-added odd powers...

I am terminating all the newly-added odd powers of 13; I'll have them all done by the weekend update.
Forum: Software 2020-09-14, 06:40
Replies: 5
Views: 243
Posted By VBCurtis
I don't think it applies to even-smaller primes...

I don't think it applies to even-smaller primes than 1e5- small primes should divide many candidates.

By the time you're sieving out a prime near 100,000, I think there are fewer than 100k...
Forum: Software 2020-09-12, 08:22
Replies: 5
Views: 243
Posted By VBCurtis
newpgen also does not print the candidates...

newpgen also does not print the candidates factored out by small primes, but when one fires it up on a new sieve it'll give a status line for each prime. So, you'll be able to see just how many...
Forum: Msieve 2020-09-12, 08:16
Replies: 3
Views: 164
Posted By VBCurtis
msieve -h works for me. Lengthy list of flags...

msieve -h works for me. Lengthy list of flags and options.
Edit: is it possible your copy was compiled without the help text? Maybe a generic msieve binary could show you the help info.
Forum: Factoring 2020-09-11, 00:50
Replies: 12
Views: 540
Posted By VBCurtis
So, one fast GPU can spend 1e54 days to have...

So, one fast GPU can spend 1e54 days to have roughly a 1 in 250 chance to find a factor.

Or, you could run regular ECM with large bounds (B1=3e9 or bigger) and actually contribute non-useless work.
Forum: Software 2020-09-10, 22:16
Replies: 16
Views: 872
Posted By VBCurtis
Only one core had a hardware error. Why would...

Only one core had a hardware error. Why would you expect all cores to have an error, just because one did?

No, it had nothing to do with the specific exponent being tested.
Forum: Factoring 2020-09-10, 22:15
Replies: 12
Views: 540
Posted By VBCurtis
How long will it take this program to search for...

How long will it take this program to search for all 70-digit factors? Or, most of them? How about 1% of the 70-digit range?

ECM on this number has ruled out factors smaller than about 67...
Forum: Alberico Lepore 2020-09-09, 20:17
Replies: 19
Views: 806
Posted By VBCurtis
Only on the 4th Friday of each month. By...

Only on the 4th Friday of each month. By extension, that's the only day you should post.
Forum: Riesel Prime Search 2020-09-08, 23:30
Replies: 379
Views: 37,203
Posted By VBCurtis
We have no evidence otherwise, though some folks...

We have no evidence otherwise, though some folks around here do think otherwise.

I test a couple low-weight k's as well as some of the highest; I like finding anomalies, but I don't think my...
Forum: Riesel Prime Search 2020-09-08, 18:23
Replies: 379
Views: 37,203
Posted By VBCurtis
Nope. But the opposite isn't true, either.

Nope. But the opposite isn't true, either.
Forum: Software 2020-09-07, 16:07
Replies: 35
Views: 791
Posted By VBCurtis
You'll have an unpleasant reminder of the benefit...

You'll have an unpleasant reminder of the benefit every time the machine crashes under heavy load.
Forum: Hardware 2020-09-07, 06:37
Replies: 9
Views: 430
Posted By VBCurtis
Let's see if I understand this right: You...

Let's see if I understand this right:

You have 6 non-M.2 SSDs. So, they're on SATA? A communications bus slow enough that any one of your SSDs is likely as fast as the bus?

So, when you...
Forum: Factoring 2020-09-06, 00:31
Replies: 3
Views: 867
Posted By VBCurtis
We don't help people pirate nor steal content. ...

We don't help people pirate nor steal content. Shame that you can't figure out the tools.
Forum: Alberico Lepore 2020-09-05, 17:57
Replies: 15
Views: 666
Posted By VBCurtis
There is no evidence you've ever started any...

There is no evidence you've ever started any studies on factorization. If you had, you wouldn't waste everyone's time with these useless equations.
Forum: Hardware 2020-09-05, 16:10
Replies: 29
Views: 1,484
Posted By VBCurtis
PS as case exhaust fan is the way to go, and for...

PS as case exhaust fan is the way to go, and for me it's not close.
The PS will run cooler with a large supply of warm air than a restricted supply of cool air, and my case airflow is overall likely...
Forum: NFS@Home 2020-09-04, 22:33
Replies: 0
Views: 147
Posted By VBCurtis
Queue management for 16e queue

Post jobs here you wish to be run on the 16e siever = f_small queue.

Guidelines:
1. Greg has requested a maximum lim of 225M to keep memory use comfortably below 1GB/client process and to keep...
Forum: NFS@Home 2020-09-04, 22:23
Replies: 0
Views: 135
Posted By VBCurtis
Queue management for 14e queue

Post jobs here that you want sieved with the "d" queue = 14e siever.

We intend for e_small to take over nearly the entire set of numbers done on 14e over the past year or two. Most of the jobs...
Forum: Proth Prime Search 2020-09-04, 15:22
Replies: 25
Views: 3,378
Posted By VBCurtis
Sorry for the typo, that was intended to be...

Sorry for the typo, that was intended to be sr1sieve not sr2sieve in the part you quoted.

You should test the 3 programs yourself to see which is faster!
Forum: Hardware 2020-09-03, 21:47
Replies: 29
Views: 1,484
Posted By VBCurtis
Congrats! Your build is quite powerful, and with...

Congrats! Your build is quite powerful, and with the megacore socket CPUs currently available there isn't much reward for the expense of two-socket machines for the work you do. 128GB ram opens...
Forum: NFS@Home 2020-09-03, 21:39
Replies: 55
Views: 1,346
Posted By VBCurtis
I'm not sure how BOINC clients work, but if the...

I'm not sure how BOINC clients work, but if the default setup is to run a fraction of WUs on each queue, it makes sense to just feed small jobs as they come in. However, if default behavior would run...
Showing results 1 to 25 of 1000

 
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