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Search: Posts Made By: Prime95
Forum: Software 2020-09-28, 14:52
Replies: 343
Sticky: Prime95 v30.3
Views: 18,176
Posted By Prime95
That should work. Make a backup if you're leery...

That should work. Make a backup if you're leery (or prudent).
Forum: Data 2020-09-28, 04:52
Replies: 527
Views: 49,223
Posted By Prime95
Impressive. How long did that take?

Impressive. How long did that take?
Forum: GpuOwl 2020-09-28, 04:49
Replies: 17
Views: 511
Posted By Prime95
The "problem" is prime95 is designed with the...

The "problem" is prime95 is designed with the average user in mind who wants it running in background without impacting his/her daily activities. What that means is that the default configuration...
Forum: GpuOwl 2020-09-28, 01:45
Replies: 17
Views: 511
Posted By Prime95
P-1 bounds are a balancing act. As first stage...

P-1 bounds are a balancing act. As first stage processing of B1 becomes more efficient, the optimal B2/B1 ratio decreases. If B1 processing were to drop to zero cost, no stage 2 would make sense. ...
Forum: Software 2020-09-26, 02:10
Replies: 343
Sticky: Prime95 v30.3
Views: 18,176
Posted By Prime95
The Wh4 code is not really used anymore. Over...

The Wh4 code is not really used anymore. Over time it loosely relates to gwnum FFT library version number. The middle letter gets bumped when there are major changes to the FFT code.
Forum: Software 2020-09-25, 20:08
Replies: 5
Views: 162
Posted By Prime95
Ancient history that I now regret. The...

Ancient history that I now regret.

The theory was you could configure one computer, then copy prime95.exe and prime.txt (then called prime.ini) to a new computer and everything would "just work". ...
Forum: PrimeNet 2020-09-24, 22:44
Replies: 1,979
Views: 143,202
Posted By Prime95
Blame it on PRP proofs. Before, exponents were...

Blame it on PRP proofs. Before, exponents were in one of a several tables. Now, while waiting for a proof to be uploaded the exponent is in none of those tables. It will get patched up someday.
Forum: Soap Box 2020-09-24, 04:55
Replies: 46
Views: 1,708
Posted By Prime95
He was charged for shooting up the neighboring...

He was charged for shooting up the neighboring apartments where no one died.

Really, there was no choice but to let the officers off. They had a warrant, they were fired upon, they returned fire....
Forum: GpuOwl 2020-09-24, 00:42
Replies: 2,500
Views: 148,213
Posted By Prime95
And another proof failure...

And another proof failure http://mersenne.org/M108979987
Forum: mersenne.ca 2020-09-23, 03:08
Replies: 447
Sticky: mersenne.ca
Views: 25,355
Posted By Prime95
You are an optimistic soul

You are an optimistic soul
Forum: Software 2020-09-22, 16:42
Replies: 27
Views: 1,186
Posted By Prime95
Talking Correction (stupid human error): 53-bit...

Correction (stupid human error):

53-bit doubles: (53-15)/2 = 19 bits (eff = 29.7%)

48-bit doubles: (48-15)/2 = 16.5 bits (eff = 25.8%)
72-bit triples: (72-15)/2 = 28.5 bits (eff =...
Forum: Software 2020-09-21, 23:49
Replies: 27
Views: 1,186
Posted By Prime95
Right now we are getting about 19 bits per...

Right now we are getting about 19 bits per double (19/64 = 29.7% efficiency)
If we use two floats to emulate us a 48-bit double, we'll get about 14 bits per double (21.9% efficiency). So our...
Forum: Software 2020-09-21, 05:12
Replies: 343
Sticky: Prime95 v30.3
Views: 18,176
Posted By Prime95
There is no such setting. Just disable getting...

There is no such setting. Just disable getting CERT work. There is no problem getting CERT work completed at this time.
Forum: Software 2020-09-20, 04:42
Replies: 10
Views: 297
Posted By Prime95
I've switched from MSVC 2005 to VS 2019 for...

I've switched from MSVC 2005 to VS 2019 for Windows builds. What exactly is causing the Win XP error, I don't know. Is it fixable, I don't know that either.
Forum: Software 2020-09-20, 04:37
Replies: 27
Views: 1,186
Posted By Prime95
Yes, fixed point. Your comments about the...

Yes, fixed point. Your comments about the integer units already being busy with pointer arithmetic and looping has me worried about this approach. That and the fact that there are twice as many SP...
Forum: Software 2020-09-19, 05:35
Replies: 27
Views: 1,186
Posted By Prime95
Years ago I toyed with using two or three 32-bit...

Years ago I toyed with using two or three 32-bit ints to create a 64 or 96-bit float (no exponent bits -- all mantissa).

I did enough work to prove to myself it was feasible and, at the time,...
Forum: GpuOwl 2020-09-17, 19:52
Replies: 2,500
Views: 148,213
Posted By Prime95
Do you have a gpuowl.log file that we can look at...

Do you have a gpuowl.log file that we can look at for error messages?
Forum: GpuOwl 2020-09-17, 16:51
Replies: 2,500
Views: 148,213
Posted By Prime95
Proof failure

The second proof failure is here: 108979853 (https://www.mersenne.org/report_exponent/?exp_lo=108979853&exp_hi=&full=1)

I do not know if Bruno Victal is a forum member and can comment on what may...
Forum: Software 2020-09-16, 19:31
Replies: 343
Sticky: Prime95 v30.3
Views: 18,176
Posted By Prime95
Please try this: ...

Please try this:

https://www.dropbox.com/s/xo7psmmjfkb52pr/p95v303b6.MacOSX.tar.gz?dl=0

No GUI. Not tested much. If it works, I'll make it the official Mac release
Forum: Software 2020-09-16, 15:49
Replies: 343
Sticky: Prime95 v30.3
Views: 18,176
Posted By Prime95
My Mac died. I might can steal some CPU cycles...

My Mac died. I might can steal some CPU cycles from my wife's Mac. Would a GUI-less version suffice?
Forum: Software 2020-09-16, 02:05
Replies: 343
Sticky: Prime95 v30.3
Views: 18,176
Posted By Prime95
I've made 30.3 build 6 the official download...

I've made 30.3 build 6 the official download version at mersenne.org!
Forum: Software 2020-09-16, 01:48
Replies: 343
Sticky: Prime95 v30.3
Views: 18,176
Posted By Prime95
Those errors are "normal". The 0.4425135837...

Those errors are "normal". The 0.4425135837 error does indicate roundoffs are getting pretty high. I'll change lower the AVX-512 crossover in 30.4 from 53620000 to 53490000.
Forum: Software 2020-09-15, 21:58
Replies: 343
Sticky: Prime95 v30.3
Views: 18,176
Posted By Prime95
Possibly too aggressive. In results.txt, what...

Possibly too aggressive. In results.txt, what are the 9 error messages?
Forum: Software 2020-09-14, 16:26
Replies: 343
Sticky: Prime95 v30.3
Views: 18,176
Posted By Prime95
mprime does not use https

mprime does not use https
Forum: Software 2020-09-14, 04:36
Replies: 343
Sticky: Prime95 v30.3
Views: 18,176
Posted By Prime95
Only if you count no longer having to do...

Only if you count no longer having to do double-checking.

To more directly answer your question, no speed increase.
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