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Search: Posts Made By: kriesel
Forum: kriesel 2021-04-17, 17:07
Replies: 14
Views: 5,851
Posted By kriesel
PRP proof file format

V1:
"An attempt at documenting the file format is here:
https://github.com/preda/gpuowl/wiki/PRP-Proof-File-Spec"
(reproduced from https://mersenneforum.org/showpost.php?p=549786&postcount=87)

...
Forum: PrimeNet 2021-04-17, 15:43
Replies: 6
Views: 207
Posted By kriesel
To clarify on TF software: Only mfaktc on...

To clarify on TF software:
Only mfaktc on NVIDIA gpus and mfakto on AMD gpus or perhaps OpenCL supporting IGPs are worthwhile in the mersenne.org exponent range.
There are better uses for cpus:...
Forum: Marin's Mersenne-aries 2021-04-17, 15:02
Replies: 43
Views: 12,850
Posted By kriesel
From https://www.mersenne.org/report_milestones/ ...

From https://www.mersenne.org/report_milestones/
Progress toward next GIMPS milestones (last updated 2021-04-17 14:30:05 UTC, updates every 15 minutes)
Countdown to verifying all tests below...
Forum: Marin's Mersenne-aries 2021-04-17, 13:48
Replies: 7
Views: 513
Posted By kriesel
From https://www.mersenne.org/report_milestones/ ...

From https://www.mersenne.org/report_milestones/
Progress toward next GIMPS milestones (last updated 2021-04-17 13:30:06 UTC, updates every 15 minutes)

All exponents below 55 133 759 have been...
Forum: Lounge 2021-04-16, 23:13
Replies: 189
Views: 32,445
Posted By kriesel
If the current stretch is part of a gap to rival...

If the current stretch is part of a gap to rival the exponent ratio of 521/127 ~4.1, it could take GIMPS enough decades to get the wavefront of first primality testing to M52 to exceed the life...
Forum: News 2021-04-16, 21:15
Replies: 328
Views: 60,537
Posted By kriesel
No, not him. But to answer your request, it is...

No, not him. But to answer your request, it is M52 of course!
(Should have been October 2020 for proof V2 introduction. Finding the correct exponent for M52 "is left as an exercise for the readers"....
Forum: Lounge 2021-04-16, 20:30
Replies: 4,277
Views: 319,954
Posted By kriesel
Outstanding! For WHAM or WUPPE development, best...

Outstanding! For WHAM or WUPPE development, best NASA-approved paint we could use was solar spectrum absorptance ~23.%. More recently, there's 9%...
Forum: PrimeNet 2021-04-16, 20:11
Replies: 9
Views: 259
Posted By kriesel
Really more like for LL, 2(1+e+e2+...] where...

Really more like for LL, 2(1+e+e2+...] where e=error rate per primality test is ~0.01 for ~p=100M with Jacobi check, double~0.02 without Jacobi check, and e is a strong function of exponent, or of...
Forum: News 2021-04-16, 16:09
Replies: 328
Views: 60,537
Posted By kriesel
proof file V2 spec

The above still describes proof file V1.
Is there a V2 update or equivalent somewhere? If so where?
Proof V2 was introduced (https://mersenneforum.org/showpost.php?p=560786&postcount=110) in...
Forum: Lounge 2021-04-14, 17:50
Replies: 1,710
RIP
Views: 149,999
Posted By kriesel
It's a class of crime called affinity fraud,...

It's a class of crime called affinity fraud, using group membership and other aspects of human nature against the victims for personal gain. Madoff's crimes (and the several associates also...
Forum: Lounge 2021-04-14, 15:54
Replies: 1,710
RIP
Views: 149,999
Posted By kriesel
"I’ve served 11 years already, and, quite...

"I’ve served 11 years already, and, quite frankly, I’ve suffered through it.” Oh boo hoo. https://www.nytimes.com/2021/04/14/business/bernie-madoff-dead.html

Deserved every second of his 150...
Forum: Data 2021-04-14, 02:46
Replies: 17
Views: 497
Posted By kriesel
Interesting stuff. How useful would P+1 be, for...

Interesting stuff.
How useful would P+1 be, for wavefront Mersenne exponents?
I had thought the applicable factoring methods were already fully exploited by GIMPS.

How applicable is Mihai's...
Forum: Hardware 2021-04-12, 17:27
Replies: 2
Views: 127
Posted By kriesel
Crazy times we're in, presumably due to the...

Crazy times we're in, presumably due to the plethora of cryptocurrency schemes. Automated vehicles increase demand too.

We're now in a situation where used functional but no-warranty Radeon VIIs...
Forum: Software 2021-04-11, 18:55
Replies: 4
Views: 94
Posted By kriesel
https://ark.intel.com/content/www/us/en/ark/produc...

https://ark.intel.com/content/www/us/en/ark/products/120502/intel-xeon-platinum-8160m-processor-33m-cache-2-10-ghz.html 24 cores, hyperthreading won't help with P-1 or PRP or LL throughput. Cache is...
Forum: Software 2021-04-11, 17:42
Replies: 7
Views: 170
Posted By kriesel
There are multiple ways of estimating completion...

There are multiple ways of estimating completion time. One is to observe actual throughput of mprime/prime95 over days or weeks, including effect of other workloads, system shutdowns, etc, and...
Forum: PrimeNet 2021-04-11, 14:39
Replies: 13
Views: 657
Posted By kriesel
What I expect is this: It takes years to occur....

What I expect is this:
It takes years to occur. Someone's prime95 that's PrimeNet connected gets and completes the PRP test on the lucky exponent. That someone is considered the discoverer.
Someone...
Forum: Information & Answers 2021-04-10, 23:29
Replies: 12
Views: 432
Posted By kriesel
Moderator, please mask the AIDs and res64s in the...

Moderator, please mask the AIDs and res64s in the preceding post.
OP, you're new here, don't post what are supposed to be secrets on a public thread.
Prime95 asked you to private message ("PM") him...
Forum: PrimeNet 2021-04-10, 21:04
Replies: 13
Views: 657
Posted By kriesel
Run of the mill LL wavefront first tests had 2%...

Run of the mill LL wavefront first tests had 2% error rate per test before the addition of the Jacobi check to some of the testing software. CUDALucas still lacks it. So average LL error rate will...
Forum: PrimeNet 2021-04-10, 18:47
Replies: 13
Views: 657
Posted By kriesel
My point #2 was consistent with your own guidance...

My point #2 was consistent with your own guidance posted earlier.

Since LLDC is an inferior check compared to PRP/GEC/proof, it should be phased out. So should LL first test. The error rate is too...
Forum: PrimeNet 2021-04-10, 16:52
Replies: 13
Views: 657
Posted By kriesel
Bravo!

Next in line:


when to cease awarding computing credit for LL first test results
when will an mprime/prime95 version supporting Primenet API issued PRP/GEC/proof as DC of unfortunate LL...
Forum: Miscellaneous Math 2021-04-07, 00:03
Replies: 79
Views: 3,220
Posted By kriesel
I'm done with his posts. ...

I'm done with his posts.

https://mersenneforum.org/profile.php?do=ignorelist
Forum: kriesel 2021-04-05, 23:13
Replies: 20
Views: 6,434
Posted By kriesel
Why don't we merge the leading cpu and gpu applications?

(draft)
Because our best volunteer programmers:
have better uses for their time;
like things as they are now;
aren't that ambitious, crazy or masochistic.

As things stand now, there are...
Forum: GPU Computing 2021-04-04, 22:17
Replies: 4
Views: 250
Posted By kriesel
More on "Big Island"...

More on "Big Island" https://coreteks.tech/articles/index.php/2021/02/10/big-island-gpu-a-brief-architecture-overview/
Memory bandwidth 20% higher than Radeon VII, memory capacity double which would...
Forum: Cloud Computing 2021-04-04, 13:13
Replies: 3
Views: 143
Posted By kriesel
Use the reference info. I've updated the list...

Use the reference info. I've updated the list about halfway down the long page at https://mersenneforum.org/showthread.php?p=521922#post521922

Look for heading "Cloud computing specific reference...
Forum: GpuOwl 2021-04-03, 22:15
Replies: 2,695
Views: 243,617
Posted By kriesel
If you switch early enough in the run, you may...

If you switch early enough in the run, you may get a proof.
Power 2power %max for transition to proof generation version (~point of no return/proof)
10 1024 0.0976
9 512 0.1953
8 ...
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