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Forum: GpuOwl 2020-09-24, 00:42
Replies: 2,473
Views: 146,516
Posted By Prime95
And another proof failure...

And another proof failure http://mersenne.org/M108979987
Forum: mersenne.ca 2020-09-23, 03:08
Replies: 438
Sticky: mersenne.ca
Views: 24,795
Posted By Prime95
You are an optimistic soul

You are an optimistic soul
Forum: Software 2020-09-22, 16:42
Replies: 26
Views: 1,066
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: 26
Views: 1,066
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: 338
Sticky: Prime95 v30.3
Views: 17,236
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: 283
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: 26
Views: 1,066
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: 26
Views: 1,066
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: 2,473
Views: 146,516
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: 2,473
Views: 146,516
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: 338
Sticky: Prime95 v30.3
Views: 17,236
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: 338
Sticky: Prime95 v30.3
Views: 17,236
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: 338
Sticky: Prime95 v30.3
Views: 17,236
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: 338
Sticky: Prime95 v30.3
Views: 17,236
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: 338
Sticky: Prime95 v30.3
Views: 17,236
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: 338
Sticky: Prime95 v30.3
Views: 17,236
Posted By Prime95
mprime does not use https

mprime does not use https
Forum: Software 2020-09-14, 04:36
Replies: 338
Sticky: Prime95 v30.3
Views: 17,236
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.
Forum: Software 2020-09-13, 23:02
Replies: 338
Sticky: Prime95 v30.3
Views: 17,236
Posted By Prime95
A quick scan of VS2019 documentation shows no...

A quick scan of VS2019 documentation shows no easy or obvious solution. I don't intend to work on this any more. As you can imagine 15 year old 32-bit OSes are not a high priority, but I do...
Forum: Software 2020-09-13, 21:39
Replies: 338
Sticky: Prime95 v30.3
Views: 17,236
Posted By Prime95
Try again with the proof upload. I think it will...

Try again with the proof upload. I think it will now work.
Forum: Software 2020-09-13, 15:43
Replies: 338
Sticky: Prime95 v30.3
Views: 17,236
Posted By Prime95
Same "KERNEL32.dll!K32GetModuleFileNameExA" error...

Same "KERNEL32.dll!K32GetModuleFileNameExA" error message?
Forum: Marin's Mersenne-aries 2020-09-13, 00:14
Replies: 8
Views: 425
Posted By Prime95
B-S data from 33,000 tests would be very useful. ...

B-S data from 33,000 tests would be very useful. If you can tell us, for each E value, how many P-1 tests were run and how many factors would have been missed if B-S was not used.
Forum: Software 2020-09-12, 04:47
Replies: 338
Sticky: Prime95 v30.3
Views: 17,236
Posted By Prime95
Switch now. It should be backward compatible. ...

Switch now. It should be backward compatible. (but make a backup just to be safe).
Forum: GpuOwl 2020-09-12, 02:06
Replies: 58
Views: 2,000
Posted By Prime95
All gpuowl executables that produced proofs work...

All gpuowl executables that produced proofs work just fine. Some of the early gpuowls either did not output the proof section in the JSON results or omitted the md5 value in the proof section of the...
Forum: GpuOwl 2020-09-11, 21:17
Replies: 58
Views: 2,000
Posted By Prime95
The server was recently modified to accept two...

The server was recently modified to accept two results with the same shift count if one was without proof and one was with proof.

The server was also recently modified to reject proof uploads...
Forum: PrimeNet 2020-09-11, 05:05
Replies: 1,977
Views: 142,662
Posted By Prime95
I guess the workload page is thinking those are...

I guess the workload page is thinking those are first-time tests whereas they are DCs.
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