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Search: Posts Made By: petrw1
Forum: Software 2022-01-18, 16:40
Replies: 339
Views: 16,378
Posted By petrw1
That RAM would do it...with that much RAM you...

That RAM would do it...with that much RAM you could get away with a smaller B1 and still find plenty of factors.
B1=1M might do it but its up to you.
Forum: Data 2022-01-18, 05:24
Replies: 1,145
Views: 140,637
Posted By petrw1
Project update 2022-01-17 ... could be the last one.

58 more ranges cleared!!! Another new record high and in only 6 weeks!!!!
5.9, 6.1, 6.4, 6.5, 6.6, 6.8, 6.9, 7.0, 7.2, 8.4, 8.6, 8.9, 9.1, 9.7, 9.8,
10.6, 11.0, 11.2, 12.0, 12.2, 12.3, 12.4, 12.5,...
Forum: Data 2022-01-18, 04:32
Replies: 58
Views: 1,199
Posted By petrw1
Signing off until April

So doing some rough calculations using this (https://www.mersenne.ca/prob.php?)
which admittedly is not accurate for v30.8 ... but still usable.

Looking at exponents where the current B1 is even...
Forum: Data 2022-01-17, 21:36
Replies: 58
Views: 1,199
Posted By petrw1
Looks like 2x (1.95x) fits your PC pretty good. ...

Looks like 2x (1.95x) fits your PC pretty good.
We are probably in the ball park with 2x ... or 2.2x ... or 1.9x
Forum: Software 2022-01-17, 18:52
Replies: 339
Views: 16,378
Posted By petrw1
ok thanks. BTW: I added this line to...

ok thanks.

BTW: I added this line to eliminate all the "Setting Affinity..." lines; a bigger deal for 8+core machines.
AffinityVerbosity=0
Forum: Software 2022-01-17, 18:49
Replies: 339
Views: 16,378
Posted By petrw1
Stage 2 changed it's mind twice v30.8b8

[Main thread Jan 17 12:32] Mersenne number primality test program version 30.8
[Main thread Jan 17 12:32] Optimizing for CPU architecture: Core i3/i5/i7, L2 cache size: 8x1 MB, L3 cache size: 11 MB...
Forum: Lounge 2022-01-17, 18:06
Replies: 1,638
Views: 170,027
Posted By petrw1
France has reported some cases of IHU variant but...

France has reported some cases of IHU variant but that's not a Greek letter. How dare they!
Forum: Software 2022-01-17, 17:44
Replies: 339
Views: 16,378
Posted By petrw1
@George: Do you still recommend these 2...

@George: Do you still recommend these 2 settings?

ErrorCheck=1
SumInputsErrorCheck=1
Forum: Data 2022-01-17, 17:29
Replies: 1,145
Views: 140,637
Posted By petrw1
Returning end of March. I'll be peeking daily. ...

Returning end of March.
I'll be peeking daily.
Machines are all live and connected and reporting... unless they fail in which case I'm relying on my son to give them a kick.

I've taken as many...
Forum: Data 2022-01-17, 17:17
Replies: 1,145
Views: 140,637
Posted By petrw1
Sorry I got it.

Sorry I got it.
Forum: Data 2022-01-17, 16:33
Replies: 58
Views: 1,199
Posted By petrw1
Thanks Now could you try one or both of these...

Thanks
Now could you try one or both of these to see if the run times are about the same.
- an exponent half the size with double the B1
- an exponent double the size with half the B1
Forum: Data 2022-01-17, 04:13
Replies: 58
Views: 1,199
Posted By petrw1
I agree it seems odd; It could be a quirk in my...

I agree it seems odd; It could be a quirk in my PC.
Even with version 29 of Prime95 I got the best P-1 thruput with 8 Cores/ 1 Worker.

Exp / B1 : FFT1 / FFT2 : Stage1 / Stage2
20.8M / .8M : ...
Forum: Data 2022-01-17, 02:23
Replies: 1,145
Views: 140,637
Posted By petrw1
Reminder: I have just assigned these ranges to my PC's while I'm away

13.1
13.3
14.1
14.4
14.6
14.7
18.0
18.2
18.4
18.8
Forum: Software 2022-01-16, 16:24
Replies: 339
Views: 16,378
Posted By petrw1
Not surprising with 30.8 and lots of RAM. It...

Not surprising with 30.8 and lots of RAM.
It will fly through Stage 2.
How much RAM?
Forum: Data 2022-01-16, 05:49
Replies: 58
Views: 1,199
Posted By petrw1
i7-7820x 24GB RAM 20.8M .8M/261.6M(B2=327xB1)...

i7-7820x 24GB RAM
20.8M .8M/261.6M(B2=327xB1) - Stage1: 10 Min / Stage2: 9 Min = 19 Min Total - 5.35% / 17.6777 GhzDays
10.4M 1.76M/1169M(B2=664xB1) - Stage 1: 22 Min / Stage2: 13 Min = 35 Min...
Forum: Data 2022-01-16, 04:03
Replies: 58
Views: 1,199
Posted By petrw1
With the same PC I increased B1 from .8M to 1.1M...

With the same PC I increased B1 from .8M to 1.1M and decreased RAM from 24GB to 12GB.
I had a similar success rate 5.35% vs 5.41%.
The run time was longer: Stage 1 took about 15% longer as...
Forum: Data 2022-01-15, 23:01
Replies: 1,145
Views: 140,637
Posted By petrw1
Great welcome...reserved ranges are in post #1 of...

Great welcome...reserved ranges are in post #1 of this thread.
But yes 8.7M is free and yours.

If you have a good PC with decent RAM (16G?) TF is probably not necessary (but can't hurt) in this...
Forum: Data 2022-01-15, 17:57
Replies: 58
Views: 1,199
Posted By petrw1
Some Bounds Testing

With 8-core i7-7820x PC
20.8M exponents at TF75
Assignments look like: Pminus1=N/A,1,2,20858423,-1,800000,0,75

Test: Alter RAM allocated
B2-Mult is from this line: With trial factoring done...
Forum: Data 2022-01-15, 05:43
Replies: 58
Views: 1,199
Posted By petrw1
We also need some direction on how RAM affects...

We also need some direction on how RAM affects this project.
To get comparable results there is some agreement that we give a rule of thumb for how to adjust the recommended B1 based on the RAM....
Forum: Data 2022-01-15, 04:50
Replies: 58
Views: 1,199
Posted By petrw1
Ooooooohhhh I had assumed it was based on some...

Ooooooohhhh I had assumed it was based on some inner workings of your new code.
Ok, I'll give it some thought....but there are others more qualified for this.
If the goal is a consistent run-time...
Forum: Data 2022-01-15, 01:07
Replies: 58
Views: 1,199
Posted By petrw1
Some cyphering for 1 possible scenario.

The following is completely negotiable.

If, just as an example, we choose B1=1M as the preferred minimum for exponent 20M with a RAM allocation of 16GB;
and using George's "every time you double...
Forum: Data 2022-01-14, 23:50
Replies: 1,145
Views: 140,637
Posted By petrw1
My PC with 24.5G of RAM would have a B2...

My PC with 24.5G of RAM would have a B2 multiplier or about 500 for that range.

With an expected success rate of 1% TF can be finicky. I've had runs of NF over 600 long and I've had consecutive...
Forum: Data 2022-01-14, 23:21
Replies: 1,145
Views: 140,637
Posted By petrw1
You are correct .... and thanks Wow 15.5 is...

You are correct .... and thanks

Wow 15.5 is going to need some aggressive P-1 bounds.
Feel free to ignore the following if you understand the math for selecting bounds.

If you'd like a...
Forum: Data 2022-01-13, 20:27
Replies: 1,145
Views: 140,637
Posted By petrw1
OK, your call. I wasn't trying to pressure you....

OK, your call.
I wasn't trying to pressure you.
Thanks
Forum: Data 2022-01-13, 18:20
Replies: 1,145
Views: 140,637
Posted By petrw1
Just checking in. Are you still working on...

Just checking in.
Are you still working on these ranges?
It's just that I do not detect any results since the New Year.
Showing results 1 to 25 of 1000

 
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