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Search: Posts Made By: kriesel
Forum: kriesel 2021-12-07, 15:54
Replies: 35
Views: 35,613
Posted By kriesel
Exponent limits

Exponent limits of software and servers are tabulated by GIMPS computation type and application or server, in the attachments. Maximum exponent empirically confirmed is reliably 100% of nominal for...
Forum: Software 2021-12-07, 15:47
Replies: 158
Sticky: Prime95 30.7
Views: 13,854
Posted By kriesel
Welcome. Normally, pausing prime95 is...

Welcome. Normally, pausing prime95 is unnecessary. It runs at lower priority. Read the documentation shipped with prime95. You can set it to pause when it detects specific other applications, such as...
Forum: GpuOwl 2021-12-06, 22:46
Replies: 2,741
Views: 317,861
Posted By kriesel
Yes, there was a lot of discussion and benchmark...

Yes, there was a lot of discussion and benchmark posting a while back (beginning ~https://www.mersenneforum.org/showpost.php?p=532438&postcount=1528, going up to V6.11-2xx days I think).
A detailed...
Forum: Lounge 2021-12-06, 22:17
Replies: 290
Views: 35,047
Posted By kriesel
While generally in favor of pervasive (voluntary...

While generally in favor of pervasive (voluntary to or beyond herd immunity levels) vaccination, there are multiple elements of that court decision that trouble me, as a layman.


100%...
Forum: Lounge 2021-12-06, 21:12
Replies: 290
Views: 35,047
Posted By kriesel
Which are you referring to there?...

Which are you referring to there? https://history.state.gov/milestones/1961-1968

Viet Nam came to mind, but there's no Dec 6 or 7 date listed in...
Forum: Software 2021-12-06, 19:29
Replies: 128
Views: 2,994
Posted By kriesel
There is little in the way of error detection in...

There is little in the way of error detection in TF or P-1. How does this help ensure the hardware is sound?
Forum: Software 2021-12-06, 18:25
Replies: 128
Views: 2,994
Posted By kriesel
Nearby exponents have been TF to 268. Ten saved...

Nearby exponents have been TF to 268. Ten saved seems excessive.
859433 and other low exponents Mersenne primes' early histories are not entirely available in the databases, and many have been...
Forum: Lounge 2021-12-05, 12:27
Replies: 1,532
Views: 162,365
Posted By kriesel
Omicron variant of covid19 attributed to adoption...

Omicron variant of covid19 attributed to adoption of some genetic material from a common-cold virus. That provides a basis for expecting both higher transmissiblity and lower severity....
Forum: Lounge 2021-12-03, 11:41
Replies: 290
Views: 35,047
Posted By kriesel
The Japanese attack task force turns from an...

The Japanese attack task force turns from an eastern heading southward toward Hawaii, 1941. https://en.wikipedia.org/wiki/Attack_on_Pearl_Harbor#/media/File:PearlHarborCarrierChart.jpg
(Dec 4...
Forum: Software 2021-12-02, 16:23
Replies: 128
Views: 2,994
Posted By kriesel
Unless there's a memory leak/hog somewhere....

Unless there's a memory leak/hog somewhere. Firefox browser can suck up a lot of GB at times, as one example. (My Firefox is currently hogging 6.5GB) Task Manager & sort process list by memory...
Forum: Marin's Mersenne-aries 2021-12-01, 23:45
Replies: 61
Views: 4,351
Posted By kriesel
First of month snapshot

Progress toward next GIMPS milestones (last updated 2021-12-01 23:30:09 UTC, updates every 15 minutes)



All exponents below 58 204 879 have been tested and verified.
...
Forum: Lounge 2021-12-01, 19:11
Replies: 187
Views: 13,945
Posted By kriesel
https://webfocusinfocenter.informationbuilders.com...

https://webfocusinfocenter.informationbuilders.com/wfappent/TLs/TL_lang/source/wrtstime.htm format 4
I think VMS's proper handling of date and time predated ISO8601 by years.
DEC VMS had a well...
Forum: Lounge 2021-12-01, 14:11
Replies: 290
Views: 35,047
Posted By kriesel
Good luck....

Good luck. (https://pics.me.me/as-benjamin-franklin-was-leaving-the-building-where-after-four-7352325.png) The nearly 100% literac...
Forum: Marin's Mersenne-aries 2021-12-01, 13:01
Replies: 760
Views: 114,357
Posted By kriesel
These are currently shown as -Anonymous-, as in...

These are currently shown as -Anonymous-, as in when they are available.
CERT=00000000000000000000000013CDC5AB,1,2,332252587...
Forum: GpuOwl 2021-11-30, 02:23
Replies: 201
Views: 26,909
Posted By kriesel
help output excerpt (note the zero values for...

help output excerpt (note the zero values for upper limits) from gpuowl-win V7.2-86

FFT Configurations (specify with -fft <width>:<middle>:<height> from the set below):
FFT 256K [ 1.57M - ...
Forum: MattcAnderson 2021-11-30, 01:15
Replies: 10
Views: 261
Posted By kriesel
Pt-Ni or Pt-Ni-Cu...

Pt-Ni or Pt-Ni-Cu https://samueli.ucla.edu/longer-lasting-catalysts-to-improve-fuel-cells/
Pt-free Fe-N-C https://www.anl.gov/article/platinumfree-catalysts-could-make-cheaper-hydrogen-fuel-cells...
Forum: MattcAnderson 2021-11-29, 23:30
Replies: 10
Views: 261
Posted By kriesel
Bronze and brass and other alloys are metals,...

Bronze and brass and other alloys are metals, including those with minor ingredients considered nonmetallic (carbon, sulfur, phosphorus, nitrogen etc). Most metal used in industry is an intentional...
Forum: Operation Billion Digits 2021-11-29, 17:31
Replies: 16
Views: 9,577
Posted By kriesel
Misc. updates

There is a November 28 patch (https://mersenneforum.org/showpost.php?p=594124&postcount=12) for Mlucas v20.1.1 (https://www.mersenneforum.org/mayer/README.html).
Mersenne.ca is now accepting P-1...
Forum: Operation Billion Digits 2021-11-29, 17:24
Replies: 16
Views: 9,577
Posted By kriesel
Qualification (#1 "roa")

Run time scaling completed twice, from 10M to 500M or higher plus short stage 1 OBD interim timing, yields multiple extrapolations to OBD GPU72 bounds P-1 both stages completion within one year of...
Forum: Miscellaneous Math 2021-11-29, 05:39
Replies: 432
Views: 41,384
Posted By kriesel
s/up/down/

s/up/down/
Forum: GpuOwl 2021-11-28, 20:45
Replies: 28
Views: 10,388
Posted By kriesel
gpuowl-win v7.2-86-gddf3314

As usual, build-log.txt separate, everything else in the compressed file. Have not tested it much myself, only generating the help output to a file. Adds middle 2 fft, etc.
Forum: Data 2021-11-28, 16:35
Replies: 3,486
Views: 314,631
Posted By kriesel
Historically, overall, January and September have...

Historically, overall, January and September have been most productive.

From https://www.mersenne.org/primes/, sorted by day of year;
Mp#35 1996 Nov 13
Mp#39 2001 Nov 14
Mp#40 2003 Nov 17...
Forum: kriesel 2021-11-28, 16:18
Replies: 6
Views: 4,019
Posted By kriesel
Discovery dates

Discovery dates can be found at https://www.mersenne.org/primes/. Other than patterns such as varying computer usage & shutdown at U of Central Missouri and elsewhere, relating to academic year...
Forum: Math 2021-11-27, 13:35
Replies: 9
Views: 509
Posted By kriesel
I thought later after I posted that, that seed >...

I thought later after I posted that, that seed > Mp or Mp2 would be some sort of problem. But it seems to work, at least in a very small sample tried.
The wikipedia article should be updated if it's...
Forum: Math 2021-11-27, 00:35
Replies: 9
Views: 509
Posted By kriesel
https://en.wikipedia.org/wiki/Lucas%E2%80%93Lehmer...

https://en.wikipedia.org/wiki/Lucas%E2%80%93Lehmer_primality_test#Alternate_starting_values states there are an infinite number of universal starting values.

The ninth page of Bas Jensen's PhD...
Showing results 1 to 25 of 1000

 
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