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Forum: Aliquot Sequences 2020-04-05, 06:57
Replies: 253
Views: 10,061
Posted By VBCurtis
I finally give up on 13^34. Unreserving. 155...

I finally give up on 13^34. Unreserving. 155 digits, the C150 has had just over a t40.
Forum: Factoring 2020-04-05, 04:11
Replies: 32
Views: 3,258
Posted By VBCurtis
I upgraded my CPU on my home system (was i7-5820k...

I upgraded my CPU on my home system (was i7-5820k haswell 6x3.3ghz, now Xeon of same era 12x2.5ghz. Same mobo), so I started over at C100 trying to optimize settings.

I managed to crack a C100 in...
Forum: Factoring 2020-04-05, 03:14
Replies: 2
Views: 215
Posted By VBCurtis
You know, there's an entire website dedicated to...

You know, there's an entire website dedicated to reports of random factors like these. Try factordb.com rather than posting here; this forum isn't a place to track trivial factorizations, but the...
Forum: XYYXF Project 2020-04-04, 21:42
Replies: 11
Views: 2,096
Posted By VBCurtis
The ECM curves you're running aren't big enough...

The ECM curves you're running aren't big enough to have a significant chance to find a factor. Try using B1=260M or bigger for a few days.

If GNFS is used for this number, figure 12 to 20...
Forum: Riesel Prime Search 2020-04-04, 16:15
Replies: 334
Views: 27,773
Posted By VBCurtis
How far did you test these?

How far did you test these?
Forum: Factoring 2020-04-03, 16:10
Replies: 2
Views: 103
Posted By VBCurtis
I haven't had experience with this exactly, but...

I haven't had experience with this exactly, but my guess is that some clients were running an older (or maybe newer?) CADO version than the server. I've had a couple situations where my...
Forum: Lounge 2020-04-02, 02:41
Replies: 523
Views: 17,224
Posted By VBCurtis
:tu: This thread is useful, despite the...

:tu:

This thread is useful, despite the whinging of some posters, because of the well-sourced and fact-based discussion.
Forum: Puzzles 2020-04-01, 16:01
Replies: 21
Views: 722
Posted By VBCurtis
Sure! They look like exactly the same size of...

Sure! They look like exactly the same size of infinity to me.
Forum: Conjectures 'R Us 2020-04-01, 16:00
Replies: 1,652
Views: 97,966
Posted By VBCurtis
KEP's point makes sense when the tests are really...

KEP's point makes sense when the tests are really fast, but his "at some point" has it backward- at some exponent value, the LLR test takes more than a minute each, so for any n larger than that...
Forum: Factoring 2020-04-01, 15:57
Replies: 468
Views: 36,836
Posted By VBCurtis
I have the same question/doubt, and I agree that...

I have the same question/doubt, and I agree that msieve won't care. When I've done this myself, I've just cat'ed together the relations files from the side run, then fed the main-run relations and...
Forum: Aliquot Sequences 2020-03-31, 01:54
Replies: 253
Views: 10,061
Posted By VBCurtis
Update 13^40, please. I added ~2000 terms. ...

Update 13^40, please.

I added ~2000 terms. :tu::rgerbicz:
Forum: storflyt32 2020-03-30, 03:50
Replies: 117
Views: 8,304
Posted By VBCurtis
You are the Swedish Chef of mathematics,sir. ...

You are the Swedish Chef of mathematics,sir.

https://www.youtube.com/watch?v=B7UmUX68KtE

Thanks, but make it Norwegian instead, but not your fault for only the people of the world, for also...
Forum: Software 2020-03-30, 02:14
Replies: 11
Views: 695
Posted By VBCurtis
It seems like you want to do P-1 testing on a...

It seems like you want to do P-1 testing on a list of candidates that survived a sieve, but you've set up a rather convoluted way to try to set that up.

Could you maybe try again to explain what...
Forum: Software 2020-03-30, 00:02
Replies: 11
Views: 695
Posted By VBCurtis
a1call is trying to point out (I think?) that...

a1call is trying to point out (I think?) that it's much easier to construct smooth numbers and then test them for primality than it is to construct prime numbers and then test them for smoothness.
...
Forum: Riesel Prime Search 2020-03-29, 16:05
Replies: 334
Views: 27,773
Posted By VBCurtis
If you run LLR single-threaded at those tiny...

If you run LLR single-threaded at those tiny n-values, you'll get much better production. LLR doesn't multi-thread well when FFT size is smaller than 128K * # of threads.

I'd wait until about n=2...
Forum: Factoring 2020-03-28, 22:08
Replies: 1,795
Views: 109,290
Posted By VBCurtis
Focus here, not on the final filtering result. ...

Focus here, not on the final filtering result. When you're halfway through gathering relations, "all" of the relations will have a singleton prime. As you gather more relations, more of the primes...
Forum: Factoring 2020-03-28, 19:48
Replies: 1,795
Views: 109,290
Posted By VBCurtis
If memory requirements allow, you could try...

If memory requirements allow, you could try restarting the server with A bumped by 1, or I.
That is, if you're running I=14, you could change that line from tasks.I=14 to tasks.A=28.
That's only...
Forum: Factoring 2020-03-28, 18:56
Replies: 1,795
Views: 109,290
Posted By VBCurtis
Note that after duplicate removal, you have 98M...

Note that after duplicate removal, you have 98M relations and 136M ideals. Compare those to a successful filtering run with similar bounds, and you'll get an idea of how much longer you have to go. ...
Forum: Cunningham Tables 2020-03-27, 18:45
Replies: 110
Views: 8,175
Posted By VBCurtis
Using CADO's ETA as metric, we're 65% faster with...

Using CADO's ETA as metric, we're 65% faster with A=31 than A=32. ETA for 600M relations (CADO default, I didn't set it) is now 12 months rather than 20.

Using the 'top' CPU time versus # of...
Forum: Cunningham Tables 2020-03-27, 04:10
Replies: 110
Views: 8,175
Posted By VBCurtis
I don't know about runtime- we will find out...

I don't know about runtime- we will find out tonight!
I'll time a couple of my own workunits, then time the new batch. sec/rel should fall a tiny bit, so I expect WU time to drop by a bit more than...
Forum: Riesel Prime Search 2020-03-27, 01:52
Replies: 334
Views: 27,773
Posted By VBCurtis
Under 10000 = sieve file already generated. No...

Under 10000 = sieve file already generated. No work needs to be done.
Over 10000, by 151 or 1 or any other number = work needed to make a sieve file.
"Not too bad" has nothing to do with it. ...
Forum: Cunningham Tables 2020-03-26, 17:34
Replies: 110
Views: 8,175
Posted By VBCurtis
We will reach Q=11M later today; sometime around...

We will reach Q=11M later today; sometime around that mark I will restart the server with I=16 (that is, A=31 rather than A=32). This will cut memory use in half, from 18GB to 9GB; it will also cut...
Forum: Riesel Prime Search 2020-03-26, 15:56
Replies: 334
Views: 27,773
Posted By VBCurtis
There's quite a penalty for going above 10,000-...

There's quite a penalty for going above 10,000- you have to sieve yourself, and you can't get anywhere near the sieve depth of the primegrid files. You should estimate the size of the penalty...
Forum: Hardware 2020-03-26, 02:25
Replies: 800
Views: 106,928
Posted By VBCurtis
I think he was referring to the Ryzen? Edit:...

I think he was referring to the Ryzen?
Edit: 70MB L3, if my search result is to be believed.
Forum: Cunningham Tables 2020-03-23, 00:37
Replies: 110
Views: 8,175
Posted By VBCurtis
Seems it was a simple internet outage; I didn't...

Seems it was a simple internet outage; I didn't touch the server nor CADO, but have since reconnected and found CADO running normally.
Showing results 1 to 25 of 1000

 
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