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Search: Posts Made By: kriesel
Forum: Lounge 2021-12-05, 12:27
Replies: 1,531
Views: 161,902
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: 285
Views: 34,844
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: 112
Views: 2,345
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: 4,327
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: 185
Views: 13,827
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: 285
Views: 34,844
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: 758
Views: 114,139
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: 26,753
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: 250
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: 250
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: 9,520
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: 9,520
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: 431
Views: 41,185
Posted By kriesel
s/up/down/

s/up/down/
Forum: GpuOwl 2021-11-28, 20:45
Replies: 28
Views: 10,356
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: 314,289
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: 4,013
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: 467
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: 467
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...
Forum: Lounge 2021-11-26, 12:55
Replies: 1,531
Views: 161,902
Posted By kriesel
New variant concerning, leading to a new round of...

New variant concerning, leading to a new round of travel bans
https://science.thewire.in/health/b-1-1-529-britain-says-new-sars-cov-2-variant-is-most-significant-yet-found/
Forum: Hardware 2021-11-25, 03:25
Replies: 29
Views: 2,695
Posted By kriesel
Why LL with its inferior error checking and full...

Why LL with its inferior error checking and full 100%+ cost DC, not PRP with GEC and proof generation and ~0.5% certification cost?
Forum: Mlucas 2021-11-24, 23:05
Replies: 14
Views: 995
Posted By kriesel
No. Mersenne & Fermat numbers; P-1 LL PRP, & P-1...

No. Mersenne & Fermat numbers; P-1 LL PRP, & P-1 Pepin test respectively.
https://www.mersenneforum.org/showpost.php?p=488291&postcount=2...
Forum: Astronomy 2021-11-24, 19:24
Replies: 31
Views: 2,962
Posted By kriesel
https://www.youtube.com/watch?v=7IjgZGhHrYY A...

https://www.youtube.com/watch?v=7IjgZGhHrYY
A payload (http://www.sal.wisc.edu/WUPPE/) the UW-Madison produced missed the Challenger disaster...
Forum: GPU Computing 2021-11-24, 19:16
Replies: 6
Views: 218
Posted By kriesel
See also this post...

See also this post (https://www.mersenneforum.org/showpost.php?p=488292&postcount=3) in the reference info compilation (https://mersenneforum.org/showthread.php?t=24607).
Forum: GPU Computing 2021-11-23, 19:10
Replies: 3,519
Views: 453,046
Posted By kriesel
Try an explicitly CUDA10.x build of mfaktc. It's...

Try an explicitly CUDA10.x build of mfaktc. It's possible the CUDA11.2 mfaktc build (CC 8.6) did not include the optional downlevel compute capability levels such as CC 7.5. See...
Forum: Hardware 2021-11-23, 14:11
Replies: 8
Views: 342
Posted By kriesel
Ebay...

Ebay (https://www.ebay.com/sch/i.html?_from=R40&_nkw=xeon+phi&_sacat=175673&_sop=15) currently has some 5110P coprocessors for under $100; in one case = $40 US. For experimentation on a budget.
Showing results 1 to 25 of 1000

 
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