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Search: Posts Made By: kriesel
Forum: Lounge 2021-04-14, 17:50
Replies: 1,708
RIP
Views: 149,473
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: 1,708
RIP
Views: 149,473
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: 462
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: 120
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: 90
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: 164
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: 645
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: 392
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: 645
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: 645
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: 645
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: 3,191
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: 6,405
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: 245
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: 141
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: 242,397
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 ...
Forum: PrimeNet 2021-04-03, 20:00
Replies: 11
Views: 383
Posted By kriesel
... in plane geometry. A couple other fun...

... in plane geometry.
A couple other fun cases:
1) westbound at the equator, turn right 90 deg, proceed to 90deg N. Turn right 90 deg. Proceed to equator (90 deg southward). Turn right 90 deg....
Forum: Marin's Mersenne-aries 2021-04-03, 15:02
Replies: 951
Views: 80,668
Posted By kriesel
In the list following "Exponents with 1 Suspect...

In the list following "Exponents with 1 Suspect result + 1 Unverified result:
These >100M should probably be done with PRP + CERT:"
these are inadequately P-1 factored, and are being P-1 factored...
Forum: PrimeNet 2021-04-02, 21:34
Replies: 6
Views: 926
Posted By kriesel
Yes, the server is effective at dashing the hopes...

Yes, the server is effective at dashing the hopes of a record large P-1 factor in such a case.

It took Alpertron's online ecm calculator (https://www.alpertron.com.ar/ECM.HTM) 1.2 seconds to...
Forum: Data 2021-04-02, 21:27
Replies: 3,374
Views: 262,503
Posted By kriesel
A Radeon VII can do it in a day. Was that a...

A Radeon VII can do it in a day. Was that a request?
Forum: PrimeNet 2021-04-02, 19:54
Replies: 11
Views: 383
Posted By kriesel
:not prime::two cents:That was a sin. You can not...

:not prime::two cents:That was a sin. You can not earn redemption. As your penance say 5 Hail Marys and do 5 PRP/proof assignments as DC of LL first tests by others from the manual assignments page...
Forum: Factoring 2021-04-01, 11:59
Replies: 5
Views: 1,764
Posted By kriesel
There are applications in engineering design...

There are applications in engineering design sometimes for factoring of what mathematicians would consider small to trivial numbers or ratios. Clock drives for equatorial mounts for telescopes or...
Forum: Miscellaneous Math 2021-04-01, 04:06
Replies: 79
Views: 3,191
Posted By kriesel
I count 55 NF lines. That is a very likely...

I count 55 NF lines. That is a very likely outcome for such bit levels.
For probability 1/75, 55 tries, chance of zero factors 48%....
Forum: Operazione Doppi Mersennes 2021-03-31, 16:10
Replies: 377
Views: 58,916
Posted By kriesel
Cool. Did the posted Arch build include the...

Cool. Did the posted Arch build include the expanded 2047M GpuSieveSize? Might want to aim higher, in your test run, for ranges of k and selection of kernel likely to be run in the future, since...
Forum: Lounge 2021-03-31, 14:55
Replies: 4,273
Views: 319,111
Posted By kriesel
The first "computer" I ever assembled or used

3 bits, clock rate ~1 Hz
https://en.wikipedia.org/wiki/Digi-Comp_I
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