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Search: Posts Made By: kriesel
Forum: Lounge 2021-12-09, 10:36
Replies: 346
Views: 54,752
Posted By kriesel
The least significant digit 5 immediately shows...

The least significant digit 5 immediately shows that composite.

52 = 2 x 2 x 13, so 252-1 must be composite, with factors 22-1 = 3 and 213-1 = 8191 among others....
Forum: Lounge 2021-12-08, 21:04
Replies: 346
Views: 54,752
Posted By kriesel
Sounds like an Mp#52* prediction to me. Count it...

Sounds like an Mp#52* prediction to me. Count it against his quota of 3. I think there's been ample precedent establishing that the rules will be interpreted as serves the house, not the players.

...
Forum: Marin's Mersenne-aries 2021-12-08, 17:00
Replies: 18
Views: 59,128
Posted By kriesel
Milwizzle got the cat0 exponent...

Milwizzle got the cat0 exponent (https://www.mersenne.org/report_exponent/?exp_lo=59336311&full=1).

Took:
Cat 1
DoubleCheck=59819077,75,1
DoubleCheck=60069377,74,1
ETA ~2 days barring system...
Forum: Software 2021-12-07, 21:49
Replies: 162
Sticky: Prime95 30.7
Views: 14,201
Posted By kriesel
Cut back to 4 workers. Latency will improve...

Cut back to 4 workers. Latency will improve tremendously, and occasional P-1 runs are unlikely to coincide. The loss of total throughput is modest.
Forum: kriesel 2021-12-07, 15:54
Replies: 35
Views: 35,661
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: 162
Sticky: Prime95 30.7
Views: 14,201
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: 2,743
Views: 318,593
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: 291
Views: 35,162
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: 291
Views: 35,162
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: 133
Views: 3,510
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: 133
Views: 3,510
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: 1,538
Views: 162,766
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: 291
Views: 35,162
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: 133
Views: 3,510
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: 4,413
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: 13,993
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: 291
Views: 35,162
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: 114,792
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: 27,016
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: 262
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: 262
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: 9,635
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: 9,635
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: 435
Views: 42,095
Posted By kriesel
s/up/down/

s/up/down/
Forum: GpuOwl 2021-11-28, 20:45
Replies: 28
Views: 10,441
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.
Showing results 1 to 25 of 1000

 
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