mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 25 of 1000
Search took 0.26 seconds.
Search: Posts Made By: kriesel
Forum: kriesel 2021-06-18, 16:49
Replies: 11
Views: 5,632
Posted By kriesel
Use as hardware reliability test

There's a pretty good video on this at https://www.youtube.com/watch?v=n0U7fPKRlVs.
There are what occur to me as some inaccuracies in that youtube video.

Hyperthreading should not usually be...
Forum: Information & Answers 2021-06-18, 16:27
Replies: 4
Views: 115
Posted By kriesel
There are some inaccuracies in that youtube...

There are some inaccuracies in that youtube video.

Hyperthreading should not usually be used in primality testing; performance is usually better without employing the additional threads in...
Forum: Information & Answers 2021-06-18, 16:08
Replies: 5
Views: 87
Posted By kriesel
Welcome! You may find some additional background...

Welcome! You may find some additional background info useful, or the "new participant" thread in general. Links here (https://mersenneforum.org/showthread.php?p=521922#post521922).
Forum: GpuOwl 2021-06-18, 15:27
Replies: 11
Views: 208
Posted By kriesel
Or as I do, get a block of ~30 manual assignments...

Or as I do, get a block of ~30 manual assignments for ~18 hours of a Radeon VII GPU, check the GPU72 bounds at mersenne.ca for the highest exponent in the block, and use those bounds on all of them....
Forum: Lounge 2021-06-18, 04:55
Replies: 1,681
Views: 124,298
Posted By kriesel
The link also states a discharge contains energy...

The link also states a discharge contains energy equivalent to ~100W x 3 months, which is ~800MJ.
Forum: Lounge 2021-06-18, 04:16
Replies: 1,681
Views: 124,298
Posted By kriesel
It could have been worse. Tree struck the day...

It could have been worse. Tree struck the day before (https://images.boredomfiles.com/wp-content/uploads/bolt/2021/06/pjimage36-768w.jpg) still burning.

Long ago I saw at close range outdoors a...
Forum: GPU to 72 2021-06-17, 20:00
Replies: 21
Views: 339
Posted By kriesel
Gpuowl can't use more hardware than is present. ...

Gpuowl can't use more hardware than is present.
The K80 is a dual-GPU card. The Colab free sessions offer a CPU core (often with HT) and sometimes a single GPU (such as one GPU, 12GB GPU ram, half...
Forum: GpuOwl 2021-06-17, 18:46
Replies: 11
Views: 208
Posted By kriesel
If P-1 is needed, gpuowl 7.x do PRP from the...

If P-1 is needed, gpuowl 7.x do PRP from the start, and P-1 stage 1 powers are assembled from PRP interim computations, which reduces stage 1 cost to about 10% of a standalone run. However, this...
Forum: Science & Technology 2021-06-17, 14:51
Replies: 2,904
Views: 234,869
Posted By kriesel
Follow the links. "Hundreds of millions of light...

Follow the links. "Hundreds of millions of light years across"
https://www.nature.com/articles/s41550-021-01380-6
Forum: GPU to 72 2021-06-17, 06:45
Replies: 21
Views: 339
Posted By kriesel
Have a look at the script at...

Have a look at the script at https://www.mersenneforum.org/showpost.php?p=537155&postcount=16 and adapt it to do what you want. Mfaktc at...
Forum: GPU to 72 2021-06-17, 01:39
Replies: 21
Views: 339
Posted By kriesel
Run one instance PER Colab free account/email...

Run one instance PER Colab free account/email address, simultaneously. I reliably get all 6 accounts going, multiple times daily. The session following a GPU-too session ~4 hours runtime is usually a...
Forum: Science & Technology 2021-06-16, 17:53
Replies: 2,904
Views: 234,869
Posted By kriesel
Yikes, skin and hair on the corneas!

https://www.livescience.com/deer-hairy-eyeballs.html
Forum: Science & Technology 2021-06-16, 17:23
Replies: 2,904
Views: 234,869
Posted By kriesel
Hubble observing stopped by onboard computer issue

https://abcnews.go.com/Technology/wireStory/computer-trouble-hits-hubble-space-telescope-science-halted-78316108
Forum: Marin's Mersenne-aries 2021-06-15, 14:12
Replies: 16
Views: 1,452
Posted By kriesel
From https://www.mersenne.org/report_milestones/ ...

From https://www.mersenne.org/report_milestones/

Progress toward next GIMPS milestones (last updated 2021-06-15 14:00:07 UTC, updates every 15 minutes)


All exponents below...
Forum: PrimeNet 2021-06-15, 03:00
Replies: 9
Views: 334
Posted By kriesel
Go for the GPU72 bounds or at least the PrimeNet...

Go for the GPU72 bounds or at least the PrimeNet bounds https://www.mersenne.ca/exponent/332194529 for example
or use the calculator at...
Forum: Marin's Mersenne-aries 2021-06-14, 13:39
Replies: 636
Views: 92,245
Posted By kriesel
Took: Cat 1 DoubleCheck=57826103,74,1 ...

Took:
Cat 1
DoubleCheck=57826103,74,1
DoubleCheck=57836777,74,1

The estimated run time is ~11 days in Gpuowl on a RadeonVII for the 100Mdigit P-1 batch of 31, and one factor has already been...
Forum: Lounge 2021-06-14, 13:20
Replies: 1,737
RIP
Views: 164,979
Posted By kriesel
To be despised by billions is not better than...

To be despised by billions is not better than anonymity.
Forum: Hardware 2021-06-13, 23:00
Replies: 195
Views: 26,474
Posted By kriesel
I'm pretty sure Cray didn't change the 7250...

I'm pretty sure Cray didn't change the 7250 design, or they'd be calling it something else. So I think it's safe to rely on Intel's specs for it remaining constant regardless of the info source.
It...
Forum: Lounge 2021-06-13, 18:18
Replies: 25
Views: 559
Posted By kriesel
Simplistic reductio ad absurdum, derivative of...

Simplistic reductio ad absurdum, derivative of earlier works, lacking originality or artistry, the nadir of sloth, by a charlatan vainly posing as an artist. Lucrative for him though. The buyer...
Forum: Hardware 2021-06-13, 17:22
Replies: 195
Views: 26,474
Posted By kriesel
This Cray KNL slide set...

This Cray KNL slide set (https://www.nersc.gov/assets/Uploads/Using-KNL-Processors-Feb2019.pdf) is interesting.

Cache mode: https://docs.nersc.gov/performance/knl/cache-mode/

Optimizing:...
Forum: Hardware 2021-06-13, 13:24
Replies: 195
Views: 26,474
Posted By kriesel
Congrats. What do available utilities say about...

Congrats.
What do available utilities say about the memory mode, cache layout etc.?
Is that still on CentOS v8.2?
How about a quick mprime benchmark on the same inputs?
Forum: Lounge 2021-06-12, 19:36
Replies: 25
Views: 559
Posted By kriesel
:tu::book:Reminds me of...

:tu::book:Reminds me of https://en.wikipedia.org/wiki/The_Emperor%27s_New_Clothes.
How much would you (a1call) be willing to pay for the world's shortest computer program? (NOP)
Forum: Hardware 2021-06-12, 18:24
Replies: 195
Views: 26,474
Posted By kriesel
F30 @64M FFT; F33 is ~8x larger; did you perhaps...

F30 @64M FFT; F33 is ~8x larger; did you perhaps mean F32 @256M there or F33 @512M?
Any news of DIMMS-added 7250 Phi performance (and any BIOS tweaks necessary to get it) would be welcome.
Forum: Languages -- Ancient & Modern, Human & Machine 2021-06-12, 16:44
Replies: 17
Views: 5,612
Posted By kriesel
The most irrational number

https://slate.com/technology/2021/06/golden-ratio-phi-irrational-number-ellenberg-shape.html What's a golden links thread without a golden ratio link?
Forum: Lounge 2021-06-12, 12:34
Replies: 1,004
Views: 88,920
Posted By kriesel
Imagine the fuel stream as a cylinder the vehicle...

Imagine the fuel stream as a cylinder the vehicle consumes as it travels. A 20mpg vehicle corresponds to ~0.5mm fuel stream, a 50mpg vehicle ~0.3mm like fine technical pencil lead. The crawler...
Showing results 1 to 25 of 1000

 
All times are UTC. The time now is 04:09.

Sat Jun 19 04:09:58 UTC 2021 up 22 days, 1:57, 0 users, load averages: 2.78, 2.83, 2.51

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.