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Search: Posts Made By: kriesel
Forum: Math 2020-05-29, 00:16
Replies: 38
Views: 2,448
Posted By kriesel
3. Malicious insertion of false data. Wrong res64...

3. Malicious insertion of false data. Wrong res64 for mersennes of prime exponent; Falsified NF where there might be a readily found factor. Both forms will delay discovery of primes. The first by...
Forum: kriesel 2020-05-28, 23:32
Replies: 9
Views: 1,611
Posted By kriesel
Save file size versus exponent

Save file size is almost proportional to exponent. There is a small amount of space used for constants regardless of exponent size. Based on fits to observed file size over a wide range of exponents...
Forum: kriesel 2020-05-28, 22:07
Replies: 21
Views: 2,916
Posted By kriesel
Save file size versus exponent or fft length

I think file sizes will be very nearly the same for PRP3, LL, and stage 1 P-1, since they are all going to be storing residues mod Mp.
Attached is observed PRP3 file size except as noted, plus some...
Forum: Hardware 2020-05-28, 20:09
Replies: 144
Views: 13,728
Posted By kriesel
I went with an 8-gpu-nominal frame and 6-slot...

I went with an 8-gpu-nominal frame and 6-slot motherboard recently, for extra/adequate space. 120mm fan guards for the front-mounted, (direct mount to normal plastic case fans) Some of the 6...
Forum: Math 2020-05-28, 19:27
Replies: 38
Views: 2,448
Posted By kriesel
local verification plus El Dorko and his ilk ...

local verification plus El Dorko and his ilk
means
nonlocal verification also, or PRP DC independently
Forum: Hardware 2020-05-28, 19:20
Replies: 144
Views: 13,728
Posted By kriesel
$3K is a low end motherboard, cpu & cooler,...

$3K is a low end motherboard, cpu & cooler, adequate ram, open frame chassis with complement of fans, power supply, set of fan guards to protect the owner's fingers and the cat's nose and paws, 4...
Forum: Hardware 2020-05-28, 18:31
Replies: 6
Views: 392
Posted By kriesel
Density is limited by cooling. There have been...

Density is limited by cooling. There have been lots of different approaches tried.
Forum: Lounge 2020-05-28, 00:45
Replies: 893
Views: 29,793
Posted By kriesel
Scenario 5, CDC best current estimates. Case...

Scenario 5, CDC best current estimates. Case fatality rate 0.4%; 35% of infections are asymptomatic, so infection fatality rate under 0.3%, ~0.26% Similar to a bad flu season....
Forum: Math 2020-05-27, 14:10
Replies: 38
Views: 2,448
Posted By kriesel
For certain uses, making res64 very accessible...

For certain uses, making res64 very accessible without launching either the originating program, or a special program to produce res64 from the contents, is valuable. I have a situation now where...
Forum: Hardware 2020-05-27, 14:06
Replies: 19
Views: 820
Posted By kriesel
KNL as a whole is gone in a sense; "Intel...

KNL as a whole is gone in a sense;
"Intel announced they were discontinuing Knights Landing in summer 2018."
https://en.wikipedia.org/wiki/Xeon_Phi#Knights_Landing
Forum: Hardware 2020-05-26, 19:20
Replies: 19
Views: 820
Posted By kriesel
This is a fine idea for those who would like to...

This is a fine idea for those who would like to try before buying, and can afford to wait for one to show up.
Those who don't have the time or inclination to hit the cpu or gpu roulette jackpot and...
Forum: Lounge 2020-05-26, 16:45
Replies: 893
Views: 29,793
Posted By kriesel
Sure. And we KNOW that some strains WERE...

Sure. And we KNOW that some strains WERE DESIGNED. Because they PUBLISHED THEIR WORK. https://www.nature.com/articles/nm.3985 The lab is said to have created multiple strains. They're using genomes...
Forum: Lounge 2020-05-26, 16:36
Replies: 893
Views: 29,793
Posted By kriesel
It's getting downright biblical in places. Anyone...

It's getting downright biblical in places. Anyone for a bowl of locust and pasta or corn?...
Forum: Marin's Mersenne-aries 2020-05-26, 14:53
Replies: 538
Views: 16,720
Posted By kriesel
M57993433 has a factor found

DoubleCheck=57993433,76,1 is moot. Sorry dcheuk.
Forum: Hardware 2020-05-26, 14:46
Replies: 23
Views: 739
Posted By kriesel
If you can find it in acceptable condition at an...

If you can find it in acceptable condition at an acceptable price and get the purchase completed before it goes out of stock.
Forum: GPU Computing 2020-05-26, 13:06
Replies: 2,803
Views: 210,149
Posted By kriesel
Given a cudalucas save file or several for a very...

Given a cudalucas save file or several for a very large exponent, each at a round number of many millions of iterations, that presumably does not have the res64 encoded into the file name, and no...
Forum: GPU Computing 2020-05-26, 02:23
Replies: 270
Views: 13,203
Posted By kriesel
1449/3.5=414; /3 = $138/DPTFlops-year. Thereby...

1449/3.5=414; /3 = $138/DPTFlops-year.
Thereby demonstrating the waterbed corollary to Murphy's law; push back on errors here and there, and they'll pop up elsewhere..
Forum: PrimeNet 2020-05-26, 01:00
Replies: 22
Views: 1,173
Posted By kriesel
I don't know. I've been assuming/hoping it was...

I don't know. I've been assuming/hoping it was due to normal progress. I saw your large red text in the milestone thread. In this thread George asked in early April to be reminded to revisit the...
Forum: Lounge 2020-05-26, 00:37
Replies: 893
Views: 29,793
Posted By kriesel
"like it was designed to infect human cells"....

"like it was designed to infect human cells". https://www.skynews.com.au/details/_6158843835001
Forum: GPU Computing 2020-05-26, 00:23
Replies: 270
Views: 13,203
Posted By kriesel
Another rough cut: Following assumes Pro sells...

Another rough cut:
Following assumes Pro sells near list at least early, while Radeon VIIs are routinely discounted when available at all. Sales tax and shipping neglected, as they will vary. Time...
Forum: GPU Computing 2020-05-25, 23:45
Replies: 270
Views: 13,203
Posted By kriesel
Radeon VII $549 & free shipping at Best Buy came...

Radeon VII $549 & free shipping at Best Buy came up today;

https://www.bestbuy.com/site/xfx-amd-radeon-vii-16gb-hbm2-pci-express-3-0-graphics-card/6330849.p?skuId=6330849

(Briefly; showed sold...
Forum: PrimeNet 2020-05-25, 23:14
Replies: 22
Views: 1,173
Posted By kriesel
Are we on board with Cat0-2 nonexpiration...

Are we on board with Cat0-2 nonexpiration continuing for more weeks or months? There is talk of "safer at home" / mass-house-arrest regulations continuing in some places into August. Other areas are...
Forum: Data 2020-05-25, 22:59
Replies: 3,244
Views: 197,074
Posted By kriesel
Three left as of now to get to the 91M firsttest...

Three left as of now to get to the 91M firsttest minor milestone. Aurashift has two that have not checked in for days or weeks. Not a poaching invitation, just an observation. No idea if aurashift...
Forum: Data 2020-05-25, 22:56
Replies: 232
Views: 19,000
Posted By kriesel
Cudalucas yes cllucas no prime95 / mprime yes...

Cudalucas yes
cllucas no
prime95 / mprime yes
mlucas yes
gpuowl not for a long time, and some of us are lobbying Mihai for its return.

Re self-DC, I thought that was regarded as bad form....
Forum: Hardware 2020-05-25, 22:04
Replies: 19
Views: 820
Posted By kriesel
The one I posted about has a 2.5" spinning HDD TB...

The one I posted about has a 2.5" spinning HDD TB not SSD.
https://www.techpowerup.com/gpu-specs/radeon-540.c3419 gives some idea of gpu specs. Slower than a GTX480, and much less power draw.
Showing results 1 to 25 of 1000

 
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