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Search: Posts Made By: petrw1
Forum: PrimeNet 2021-03-06, 16:22
Replies: 5
Views: 143
Posted By petrw1
I've been GPU-TF'ing for a few years now in...

I've been GPU-TF'ing for a few years now in ranges that have had decent P-1.
I'm averaging 1% success rate ... however ...
36 times I went more than 255 exponents without a factor; as high as 633.
Forum: Cloud Computing 2021-03-04, 05:28
Replies: 1,129
Views: 86,804
Posted By petrw1
Continuing to be treated special LOL

I first got GPUOwl running on Colab on Sept 19, 2020.
About 10 days later I started a second instance.
I have been attempting to get 2 P100 instances per day since.
Almost every day I get 2 and...
Forum: PrimeNet 2021-03-02, 18:28
Replies: 8
Views: 283
Posted By petrw1
For example I have a fairly high-end i7-7820x...

For example I have a fairly high-end i7-7820x (8-core CPU with high speed RAM).
I also have a 2080Ti GPU.

What my CPU could factor in 2 days would take my GPU 1 hour.
Forum: Data 2021-02-26, 04:43
Replies: 347
Views: 49,608
Posted By petrw1
Only 10 months until Christmas

... now that I have your attention :cmd:

Feb 25 Update:
20 more ranges cleared:
3.2, 4.2, 4.3, 4.5, 6.7, 10.2,
22.9, 23.7, 25.2, 26.1, 29.3, 29.9,
30.1, 32.1, 36.2, 36.5, 37.6, 38.8, 41.7,...
Forum: mersenne.ca 2021-02-16, 03:39
Replies: 538
Sticky: mersenne.ca
Views: 57,938
Posted By petrw1
Is the source code for prob.php available?

I found the source code quite easily about 3 years ago but either, I've gone brain-dead or it's not as accessible as it used to be.

I believe the formulas have changed because the percentages are...
Forum: Lounge 2021-02-12, 20:48
Replies: 88
Views: 3,182
Posted By petrw1
About as cold as a Mother-in-law stare?

About as cold as a Mother-in-law stare?
Forum: Marin's Mersenne-aries 2021-02-12, 19:25
Replies: 97
Views: 8,010
Posted By petrw1
Forum: Lounge 2021-02-12, 15:56
Replies: 88
Views: 3,182
Posted By petrw1
Forum: Information & Answers 2021-02-12, 14:02
Replies: 1
Views: 123
Posted By petrw1
That is totally up to you. I have merged many...

That is totally up to you.
I have merged many times after CPU upgrades without issue.
Forum: Lounge 2021-02-11, 18:17
Replies: 88
Views: 3,182
Posted By petrw1
:bow:

:bow:
Forum: Lounge 2021-02-11, 17:16
Replies: 88
Views: 3,182
Posted By petrw1
About 25 years ago we had a similar but colder...

About 25 years ago we had a similar but colder cold snap.
A coworker from just out of town came in to work all grumpy.
Cold weather can do that to people, even those of us sort of used to it....
Forum: Lounge 2021-02-11, 15:52
Replies: 88
Views: 3,182
Posted By petrw1
That's more like it....

I might have to put on long pants and a sweater today :big grin:
Forum: Lounge 2021-02-10, 17:44
Replies: 88
Views: 3,182
Posted By petrw1
This is a cold-snap. What the weatherman calls a...

This is a cold-snap. What the weatherman calls a "Polar Vortex".
We can see -40 a few days a winter.

Normal this time of year is highs of -13; lows of -23.
Forum: Lounge 2021-02-10, 02:58
Replies: 88
Views: 3,182
Posted By petrw1
Warming up here

10 degrees warmer than yesterday.
NOTE: This is Celsius.
Forum: Lounge 2021-02-08, 14:58
Replies: 389
Views: 49,874
Posted By petrw1
I've probably received close to 100 of these in...

I've probably received close to 100 of these in the past 5 years.

They are persistent.

They didn't get 1 Baht-Coin from me; but they probably made good money selling email lists including mine...
Forum: Data 2021-01-30, 05:30
Replies: 347
Views: 49,608
Posted By petrw1
Hmmm i expected there would be a lot more. An...

Hmmm i expected there would be a lot more.
An extremely low success rate.

Thanks.
Forum: Data 2021-01-30, 01:43
Replies: 347
Views: 49,608
Posted By petrw1
Is there an easy way to look for TF candidates....

Not sure if this is the right place to ask where those who know will see it and answer.

Anyway, as most are aware in this sub-project I am factoring to get 100K ranges under 2000 unfactored.
...
Forum: Miscellaneous Math 2021-01-28, 16:40
Replies: 32
Views: 1,121
Posted By petrw1
Agreed, most results are "Eratosthenes" but if...

Agreed, most results are "Eratosthenes" but if you keep paging through results you will soon see Atkin or Sundaram.

And if you click on those and keep paging you will see more.
Euler Sieve,...
Forum: Hardware 2021-01-21, 04:17
Replies: 847
Views: 148,135
Posted By petrw1
Its getting smarter and faster

I'm now completing these same P1 in 45 to 47 minutes.
Forum: Hardware 2021-01-19, 14:51
Replies: 847
Views: 148,135
Posted By petrw1
MB: 2066 : ATX : DDR4 : X299 Extreme 4 : ASRock ...

MB: 2066 : ATX : DDR4 : X299 Extreme 4 : ASRock
See CPU-Z screen shots.
RAM is in slots 1, 3, 5, 7.

1 Worker x 8 Cores overnight.
Anywhere from 47 to 60 minutes per....
Forum: Hardware 2021-01-19, 05:11
Replies: 847
Views: 148,135
Posted By petrw1
8 workers 1 core each takes over 9 hours to...

8 workers 1 core each takes over 9 hours to complete a P-1 (hard to be exact with all the stop/start with memory sharing between workers.
Total about 22 completions per day.

A short test suggests...
Forum: Hardware 2021-01-19, 04:15
Replies: 847
Views: 148,135
Posted By petrw1
Thanks. 4x8GB per attachment. I was hoping...

Thanks.
4x8GB per attachment.
I was hoping getting very fast (?) 3600 RAM would minimize the bottleneck.
I can try different cores/workers setups but the benchmark seems to indicate 1 worker x 8...
Forum: Hardware 2021-01-18, 21:58
Replies: 847
Views: 148,135
Posted By petrw1
Am I reading this wrong....it doesn't seem right

Timings for 2304K FFT length (8 cores, 1 worker): 1.13 ms. Throughput: 881.23 iter/sec.
Timings for 2304K FFT length (8 cores, 8 workers): 14.88, 13.80, 14.65, 15.13, 14.54, 14.41, 14.49, 13.89...
Forum: Puzzles 2021-01-18, 14:31
Replies: 32
Views: 6,383
Posted By petrw1
They are pretty cool problems. I did a couple...

They are pretty cool problems.
I did a couple hundred a dozen years ago.
Forum: GpuOwl 2021-01-17, 05:43
Replies: 195
Views: 15,126
Posted By petrw1
If you buy me one of each I'll run benchmarks. ...

If you buy me one of each I'll run benchmarks.
Deal?

:cmd:
Showing results 1 to 25 of 1000

 
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