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-   -   You just might be addicted to GIMPS if... (https://www.mersenneforum.org/showthread.php?t=654)

moo 2007-02-07 07:30

you lock yourself in a prime number of rooms...
you bury your head in a box of sand containing a prime number of grains

Damian 2007-02-12 01:52

sometimes you think your bests friends are the others members of mersenneforum.org :wink: (guilty)

ixfd64 2007-03-29 05:24

One of your favorite movies is [i]Stealth[/i] (even though it didn't do too well in the box office) because the protagonist Ben Gannon has an obsession with prime numbers.

ET_ 2007-03-29 08:51

[QUOTE=ixfd64;102361]One of your favorite movies is [i]Stealth[/i] (even though it didn't do too well in the box office) because the protagonist Ben Gannon has an obsession with prime numbers.[/QUOTE]

Don't forget Jeff Goldblum inj both Jurassic Park II and Independence Day...

Luigi :geek:

davieddy 2007-03-29 11:23

You spend all day with two pages of IE open on the Primenet
stats summary page, and update them to monitor the hourly progress.
Doing just this, I witnessed a milestone passing a couple of days ago:
There are no longer any 100,000 exponent ranges <36 million with
a four figure number of first time LL tests outstanding.

Yours sadly,
David

kuratkull 2007-03-29 14:50

You spontaneusly burst into tears when you see a friends computer or many demo computers, in a computer store, switched on and wasting their cycles on a screensaver.

Nichtwahr 2007-03-29 15:44

...you want to be contacted by intelligent extraterrestrials so you can ask them whether they know what the next Mersenne prime is! :alien:
...and then keep it to yourself so you can be the first to 'discover' it. :wink:

jasong 2007-03-30 01:19

[QUOTE=Nichtwahr;102409]...you want to be contacted by intelligent extraterrestrials so you can ask them whether they know what the next Mersenne prime is! :alien:
...and then keep it to yourself so you can be the first to 'discover' it. :wink:[/QUOTE]
You get mad at Nichtwahr for his suggestion because your life lacks meaning if all the Mersenne primes are discovered. In other words, you consider running Prime95j to be your reason for existence.

jinydu 2007-03-30 01:43

[QUOTE=jasong;102459]You get mad at Nichtwahr for his suggestion because your life lacks meaning if all the Mersenne primes are discovered. In other words, you consider running Prime95j to be your reason for existence.[/QUOTE]

... you don't even know of anyone who doesn't consider running Prime95 to be the reason for existence. The very thought seems inconceivable!

StarQwest 2007-05-05 03:38

I am definately addicted to GIMPS! After all, not only was I the first to complete a LL test of a number in the 2^100,000,000 (30 million digit) range, I am now actually testing a 100 million [I]digit[/I] number for primality...

As for the time required, lets just say it will likely finish sometime within the next decade. :geek:

Mini-Geek 2007-05-05 12:14

[quote=StarQwest;105298]I am definately addicted to GIMPS! After all, not only was I the first to complete a LL test of a number in the 2^100,000,000 (30 million digit) range, I am now actually testing a 100 million [I]digit[/I] number for primality...

As for the time required, lets just say it will likely finish sometime within the next decade. :geek:[/quote]
If you left it on that one computer it would...but by the time it finished, it would be as old as a Pentium II is now. I'm sure it will move up to faster hardware before it's done, which will make it finish much faster.

p.s. You spelled definitely wrong.

cheesehead 2007-05-05 14:55

... the reason you spot a misspelling of the word "definitely" is that you recall that "finitely" is imbedded in it.

sonjohan 2007-05-12 14:53

... You howl in fury because it took you 1 week to have Prime95 use your new Dual-core's CPU's for 100%.
... You howl in fury because when you check the Task Manager, you notice that the second instance of Prime95 is still behind System Idle Process in CPU time.

[Edit] Guilty on both charges.:whistle:

Mini-Geek 2007-06-08 13:14

...you find that the optimal number of moves for Towers of Hanoi is 2^n-1 where n is the number of disks, and become nearly as obsessed with Towers of Hanoi as with GIMPS itself.

...you only play Towers of Hanoi with a number of disks that makes the optimal number of moves a Mersenne prime.

...you read what I just said and begin playing Towers of Hanoi with 32,582,657 disks...even though it will take so long that the digits of the number of seconds is 9.8 million.

...you read the above and calculate (based on your age and life expectancy, taking into account needing to sleep and check the mersenne forum, assuming 1 second per move) the largest Mersenne prime that you can finish in your life.

...you calculate that, and are extremely disappointed that it will only take you a week, so you just start on the next biggest one anyway and put it in your will for your child to finish it after you die, and make him/her put in his/her will to have their child finish it after them if they don't finish it before they die, and so on. (or: you don't have any kids, so you adopt one just for this purpose and put it in your will for him/her to finish it)

...you're happy that you now have something to keep you occupied, since now your 486 you use to read the mersenne forum is available more often to crunch numbers for GIMPS.

note: the optimal number of moves for n disks is 2^n-1

I admit it, these (except the second and last ones) are more like "You definitely are so obsessed with Mersenne primes that it spills over into everything in your life if..." than "You just might be addicted to GIMPS if..."

Not guilty on any of those, by the way.

ixfd64 2007-06-17 07:56

You watch the film [i]The Number 23[/i] and become excited because 23 is prime. -- guilty --

jinydu 2007-07-14 15:16

... you suffer neverending nightmares after hearing this horror story (even though you would of course never let anyone else use your computer anyway, since it slows down Prime95):

[QUOTE=petrw1;110297]My first GIMPS PC was a PII 400Mhz ... it ran for 15 months on M33xxxxxx and last reported in at 99.8% complete before my son ran something that swallowed up every bit of memory in an instant. The PC crashed so quickly that when I powered down and up again Prime95 determined it had to start from the beginning.[/QUOTE]

davieddy 2007-07-15 15:25

You compile a clear table which epitomizes
concisely how GIMPS has been getting on during
the last 10 months.

(THX petrw1)

David

davieddy 2007-07-15 15:41

[quote=sonjohan;105898]... You howl in fury because it took you 1 week to have Prime95 use your new Dual-core's CPU's for 100%.
... You howl in fury because when you check the Task Manager, you notice that the second instance of Prime95 is still behind System Idle Process in CPU time.

[Edit] Guilty on both charges.:whistle:[/quote]

In a different thread I dared to suggest that
fully exploiting multicore PCs was not without its
problems.
When challenged as to what I meant, I simply
replied "numerous posts to that effect".
This IMHO is one such:smile:

David

Mini-Geek 2007-07-19 19:46

...if you read the link at [URL]http://www.mersenneforum.org/showpost.php?p=110763&postcount=323[/URL] and cry because of all that CPU time being wasted on something like checkers. (not guilty)

petrw1 2007-10-16 04:45

1 Attachment(s)
You pull over in the middle of a boulevard to take this picture:

Mini-Geek 2007-10-16 11:22

[quote=petrw1;116435]You pull over in the middle of a boulevard to take this picture:[/quote]
What's so special about 244497 or 2444971? Neither are primes, so obviously are not Mersenne primes or a Mersenne number you're working on.
:question:

Jens K Andersen 2007-10-16 12:37

[QUOTE=Mini-Geek;116455]What's so special about 244497 or 2444971? Neither are primes, so obviously are not Mersenne primes[/QUOTE]
2^44497-1

jinydu 2007-12-26 05:56

(for Team Prime Rib members)

... of course you knew months ago that TPR would soon pass 100K LL Primenet CPU years and devised a plan. A few days ago, you stopped one of your first time LL tests just 1 iteration before it was to finish (you practiced the skill of doing this for hours, expecting that you couldn't afford to stop even 2 iterations from the finish, since there would be plenty of other people as determined as you). You refreshed the TPR individual account report page continually for the last 24 hours, without breaking for food or sleep or anything else, waiting for the perfect moment to strike. Then, within 1 second of TPR reaching 99,999.2 CPU years, you resumed the test, thereby claiming the distinction of completing the milestone test that pushed TPR above 100K CPU years.

Mini-Geek 2007-12-26 12:19

[quote=jinydu;121526](for Team Prime Rib members)

... of course you knew months ago that TPR would soon pass 100K LL Primenet CPU years and devised a plan. A few days ago, you stopped one of your first time LL tests just 1 iteration before it was to finish (you practiced the skill of doing this for hours, expecting that you couldn't afford to stop even 2 iterations from the finish, since there would be plenty of other people as determined as you). You refreshed the TPR individual account report page continually for the last 24 hours, without breaking for food or sleep or anything else, waiting for the perfect moment to strike. Then, within 1 second of TPR reaching 99,999.2 CPU years, you resumed the test, thereby claiming the distinction of completing the milestone test that pushed TPR above 100K CPU years.[/quote]
Funny, yes, but I don't think that's how it worked out for the one that finished it. There was an over 2 hour time between the two (the one that brought it 0.8 away and the one that put it over).

jinydu 2007-12-26 20:38

Indeed. The last pre-100K exponent was finished at 6:34 UTC and the one that pushed it over the edge was finished at 8:49.

But why ruin a good laugh?

... you are frustrated that your computer crashes just as you are about to resume the rest. After 2 hours and 15 minutes of frenzied attempts, you finally fix the computer, finish the test and (to your great surprise) claim the milestone.

Looks like Reboot_IT is guilty! :razz:

roger 2008-01-11 05:53

You win the lottery and splurge on several Crays :grin: Now you can finally catch up to the guru's of the search! Also, you are now warmer because of your (computer's) effort!

Uncwilly 2008-01-11 14:18

[QUOTE=roger;122603]You win the lottery and splurge on several Crays :grin: Now you can finally catch up to the guru's of the search! Also, you are now warmer because of your (computer's) effort![/QUOTE]
You win the lottery and you purchase all of the computers that found the recent primes. Then you set up a road-side prime museum. It includes: posters of all of the m-primes for sale, banners on the walls of them in 4-point type, Mersenne's death mask, a lock of George's hair, and other wonders. Later you hire Paul to work as a docent.

Mini-Geek 2008-02-25 14:35

...if you agree with Strong Bad when he says, "Are you trying to tell me that $70,000 power bills aren't the norm?"
[URL]http://www.homestarrunner.com/sbemail186.html[/URL] (Flash with sound warning, [URL="http://www.hrwiki.org/index.php/environment"]transcript[/URL] instead if you prefer.)

Mini-Geek 2008-03-06 23:36

...if you're this guy here:[quote=ixfd64;127979]I had a dream last night that someone found M45. Too bad I woke up.[/quote]
No offense. :grin:

Uncwilly 2008-03-06 23:55

[QUOTE=Mini-Geek;127980]...if you're this guy here:[/QUOTE][QUOTE=Uncwilly;127969]The idea that I have is for the tray icon to change color (say blue) when an item has been finished in the worktodo.ini. That way those of us that want to stay on top of things can see when an LL is turned in or a factor is found, etc. Once the window is opened the icon would return to green.[/QUOTE]None taken.

Damian 2008-04-15 15:46

I don't know if something similar was posted but...
You install prime95 on your notebook, and when carring it from one place to another you take care not to close it.
(guilty) :)

mdettweiler 2008-04-15 16:41

[quote=Damian;131603]I don't know if something similar was posted but...
You install prime95 on your notebook, and when carring it from one place to another you take care not to close it.
(guilty) :)[/quote]
That's easy to remedy: just set the power management options to do nothing when you close the lid. :grin:

Mini-Geek 2008-06-06 12:27

...if your computing farm is the cause of global warming.

Uncwilly 2008-07-11 21:24

1 Attachment(s)
When ever the local utility is near peak power usage, they require you to disconnect your farm from the grid.

Your UPS for your farm looks like the attached.

And when they go down for maintaince, your contract requires you to supply the grid from your UPS.

Mini-Geek 2008-07-12 00:12

...if you have the most powerful supercomputer in the world but are unwilling to waste the CPU time it would take to run the test program to put it on the top of the supercomputer list.

Mini-Geek 2008-08-24 12:13

...if you use your computer farm for central heating for your neighborhood, and get your neighbors to help pay the electric bill.

petrw1 2008-08-28 20:01

Retirement....
 
... you pick your tentative retirement day based on prime numbers:

2011/05/23

2011, 05, 23, 0523 and 20110523 are ALL prime numbers.

Oh, and I will have 31 years of service and will be 53 ... two more primes.

Andi47 2008-09-07 05:24

you read a news about a Prime Minister somewhere and think about [URL="http://www.mersenneforum.org/showthread.php?p=141189#post141189"]M45[/URL] or [URL="http://www.mersenneforum.org/showthread.php?p=141187#post141187"]M46[/URL] before you even read the word "minister".

(this just happened to me)

Andi47 2008-09-07 05:44

You suggest to your gouvernment to make Sep. 6th a holiday.

I think this is the [URL="http://www.mersenneforum.org/showthread.php?p=141187#post141187"]first time[/URL] that the GIMPS server was reporting "Prime, UNVERIFIED: [B][SIZE="6"]2[/SIZE][/B]"

jinydu 2008-09-09 01:02

... you develop an ingenious plan to taunt other GIMPSters. First, you discover 10000 new Mersenne primes. Then you report one to Primenet every 10 days so that other GIMPSters have to wait decades to learn any of the primes.

retina 2008-09-09 01:10

[QUOTE=jinydu;141511]... you develop an ingenious plan to taunt other GIMPSters. First, you discover 10000 new Mersenne primes. Then you report one to Primenet every 10 days so that other GIMPSters have to wait decades to learn any of the primes.[/QUOTE]100000 days! Ouch, we have to wait >273 years to learn the primes.

cheesehead 2008-09-09 06:41

[quote=jinydu;141511]... you develop an ingenious plan to taunt other GIMPSters. First, you discover 10000 new Mersenne primes. Then you report one to Primenet every 10 days so that other GIMPSters have to wait decades to learn any of the primes.[/quote]... Then just after you have reported the second one, you become the first person ever definitely known to have been killed (and also had computer system destroyed) by a meteorite ...

Moral:

(A) Keep a copy of your backups in a separate location.

(B) Leave a note attached to your will (copy in attorney's safe) describing the location of (A) and how to read the information thereon, being sure to include any applicable encryption passwords.

Mini-Geek 2008-09-11 16:50

...if you move as far away from all coastlines, fault lines, and tornado alleys as possible so you won't be struck by a natural disaster and make your cores go idle.

...if you buy a generator and a month's worth of fuel for it so if your electricity goes out you can still crunch.

jinydu 2008-09-16 05:51

... you create a "When will M45 and M46 be revealed?" thread and poll.
... you memorize the residues of the first 100,000 Mersenne numbers.

Mini-Geek 2008-09-16 11:54

[quote=jinydu;142649]... you memorize the residues of the first 100,000 Mersenne numbers.[/quote]
Do you mean the 64-bit residue or the full residue? :smile:
...you memorize the full residues of all of the Mersenne primes (guilty, they're all 0 :big grin:).

uigrad 2008-09-18 23:52

I can't recite the residues, but I can generate them with one line in unix :grin:

To compute the first 10 residues in decimal, just run the following command.
[code]dc -e '0 3 5 7 11 13 17 19 23 29 31[dsa2r^1-sb4sclvxlcSdd0<uLdp]su[lcd*2-lb%scla1-dsa2<v]svlux'
[/code]The result:
[code]
0
0
0
1736
0
0
0
6107895
458738443
0[/code]If you're on windows, then you can do it in cygwin.

Anyone want to expand this to use a basic sieve to create the starting list of primes?

Damian 2008-09-22 16:30

You verify the mersenne primes on your cell phone.

M22 (2^9941-1) lasted 1 day and 5 hours on my Blackberry 8800 using LLMidlet [URL="http://resueltosya.com/llmidlet/LLMidlet.jad"]jad[/URL] [URL="http://resueltosya.com/llmidlet/LLMidlet.jar"]jar[/URL]
Maybe this is the record verification on a cell phone?

cheesehead 2008-09-22 19:43

... you wonder whether you hold the world record for verifying a Mersenne prime on a cell phone.

henryzz 2008-09-22 19:52

[quote=Damian;143419]You verify the mersenne primes on your cell phone.

M22 (2^9941-1) lasted 1 day and 5 hours on my Blackberry 8800 using LLMidlet [URL="http://resueltosya.com/llmidlet/LLMidlet.jad"]jad[/URL] [URL="http://resueltosya.com/llmidlet/LLMidlet.jar"]jar[/URL]
Maybe this is the record verification on a cell phone?[/quote]
where is the .jar file?

Mini-Geek 2008-09-22 21:26

[quote=henryzz;143433]where is the .jar file?[/quote]
Not to point out the obvious, but...At the end of the link labeled "jar"? ...are you unable to download that link or something?

cheesehead 2008-09-22 22:04

[quote=Mini-Geek;143443]Not to point out the obvious, but...At the end of the link labeled "jar"? ...are you unable to download that link or something?[/quote]Possibly henryzz simply overlooked that

[URL="http://resueltosya.com/llmidlet/LLMidlet.jad"][COLOR=#22229c]jad[/COLOR][/URL] [URL="http://resueltosya.com/llmidlet/LLMidlet.jar"][COLOR=#22229c]jar[/COLOR][/URL]

is two separate links rather than just a single link.

On my browser, post #629 is displayed with a line wraparound between [URL="http://resueltosya.com/llmidlet/LLMidlet.jad"][COLOR=#22229c]jad[/COLOR][/URL] and [URL="http://resueltosya.com/llmidlet/LLMidlet.jar"][COLOR=#22229c]jar[/COLOR][/URL], making it harder to notice that there would be a non-underlined space between the two.

henryzz 2008-09-23 16:22

when i download it i get a .zip file
once i renamed it to .jar it worked

Uncwilly 2008-09-25 07:10

1 Attachment(s)
You temporarily move your farm to the dining room and this happens.

Primeinator 2008-09-25 13:25

You get one of these- [url]http://images.google.com/imgres?imgurl=http://media.techeblog.com/images/submerge_5.jpg&imgrefurl=http://www.techeblog.com/index.php/tech-gadget/feature-mineral-oil-absorbs-heat-cools-computer-system-video-&h=338&w=450&sz=66&hl=en&start=115&usg=__Ed3DaAEyxYWroal5gwnR4WwmyR4=&tbnid=J61-BqILoiRYhM:&tbnh=95&tbnw=127&prev=/images%3Fq%3Dcomputer%2Bheat%26start%3D108%26gbv%3D2%26ndsp%3D18%26hl%3Den%26sa%3DN[/url]

mdettweiler 2008-09-25 14:05

[quote=Primeinator;143742]You get one of these- [URL="http://images.google.com/imgres?imgurl=http://media.techeblog.com/images/submerge_5.jpg&imgrefurl=http://www.techeblog.com/index.php/tech-gadget/feature-mineral-oil-absorbs-heat-cools-computer-system-video-&h=338&w=450&sz=66&hl=en&start=115&usg=__Ed3DaAEyxYWroal5gwnR4WwmyR4=&tbnid=J61-BqILoiRYhM:&tbnh=95&tbnw=127&prev=/images%3Fq%3Dcomputer%2Bheat%26start%3D108%26gbv%3D2%26ndsp%3D18%26hl%3Den%26sa%3DN"]http://images.google.com/imgres?imgurl=http://media.techeblog.com/images/submerge_5.jpg&imgrefurl=http://www.techeblog.com/index.php/tech-gadget/feature-mineral-oil-absorbs-heat-cools-computer-system-video-&h=338&w=450&sz=66&hl=en&start=115&usg=__Ed3DaAEyxYWroal5gwnR4WwmyR4=&tbnid=J61-BqILoiRYhM:&tbnh=95&tbnw=127&prev=/images%3Fq%3Dcomputer%2Bheat%26start%3D108%26gbv%3D2%26ndsp%3D18%26hl%3Den%26sa%3DN[/URL][/quote]
I noticed the article said that it cooled the computer to a "new maximum of 84 Celsius"--that doesn't seem too impressive. On my slightly-overclocked Q6600, I usually get something between 50 and 65--never more than a degree or so above 65. And that's with nothing more than an air-based cooler that I picked up for less than $20. :smile:

Actual cooling performance aside, though, it is quite amazing that the machine actually worked, with all the crucial parts submersed in mineral oil. You have to wonder, though--would such a thing affect the computer's lifespan? If so, would it affect it adversely?

cheesehead 2008-09-25 16:36

[quote=Anonymous;143743]Actual cooling performance aside, though, it is quite amazing that the machine actually worked, with all the crucial parts submersed in mineral oil.[/quote]Crucial properties of mineral oil are that it is electrically nonconductive and chemically nonreactive with the parts it contacts. (In water-cooled systems, the water _must_ be completely contained in plumbing and not allowed to directly contact any circuitry.)

Instructions are here: [URL]http://www.pugetsystems.com/submerged.php[/URL].

Tom's Hardware did one with cooking oil (but that turns rancid after a while) a few years ago: [URL]http://www.tomshardware.com/reviews/strip-fans,1203.html[/URL].

uigrad 2008-09-25 16:55

[quote=cheesehead;143762]
Tom's Hardware did one with cooking oil (but that turns rancid after a while) a few years ago: [URL]http://www.tomshardware.com/reviews/strip-fans,1203.html[/URL].[/quote]

You beat me to it. I was just going to link to that. The truth is that either mineral oil or vegetable oil would eventually strip away some of the plastic shielding around wires or capacitors, etc, and so this cannot be a long term solution.

There are quite few DIY videos on youtube now, and one with some women demonstrating the method on tv:
[url]http://www.youtube.com/watch?v=t8shVDvMdo4[/url]

I saw a demonstration someplace with de-ionized water. It worked for a couple hours before enough ions appeared in the water to cause a short.

mdettweiler 2008-09-25 19:11

[quote=cheesehead;143762]Crucial properties of mineral oil are that it is electrically nonconductive and chemically nonreactive with the parts it contacts. (In water-cooled systems, the water _must_ be completely contained in plumbing and not allowed to directly contact any circuitry.)

Instructions are here: [URL]http://www.pugetsystems.com/submerged.php[/URL].

Tom's Hardware did one with cooking oil (but that turns rancid after a while) a few years ago: [URL]http://www.tomshardware.com/reviews/strip-fans,1203.html[/URL].[/quote]

[quote=uigrad;143768]You beat me to it. I was just going to link to that. The truth is that either mineral oil or vegetable oil would eventually strip away some of the plastic shielding around wires or capacitors, etc, and so this cannot be a long term solution.

There are quite few DIY videos on youtube now, and one with some women demonstrating the method on tv:
[URL]http://www.youtube.com/watch?v=t8shVDvMdo4[/URL]

I saw a demonstration someplace with de-ionized water. It worked for a couple hours before enough ions appeared in the water to cause a short.[/quote]
Ah, I see--thanks for the links, they're quite interesting, especially the first one from cheesehead's post. I guess that answers my question as to how practical this would actually be since it just kept the CPU at 88 degrees Celsius--it seems that a radiator would definitely be a must if one wanted to use this thing for an always-full-load application such as distributed computing. :smile:

jinydu 2008-10-01 04:49

... you pray for the ghost of Euclid to come and punish all writers who claim the largest prime has been found.

Andi47 2008-10-03 06:59

(just found this in internet)

...you build one of these (preferably the 3rd one) for crunching:

[URL="http://helmer.sfe.se/"]Helmer I[/URL]

[URL="http://helmer2.sfe.se/"]Helmer II[/URL]

[URL="http://helmer3.sfe.se/"]Helmer III[/URL].

- and you build a nuclear powerplant to power Helmer III. :wink:

ixfd64 2008-10-03 08:43

You only keep raffle tickets with prime numbers, even though it greatly reduces your chances of winning.

cheesehead 2008-10-03 20:51

[quote=ixfd64;144372]You only keep raffle tickets with prime numbers, even though it greatly reduces your chances of winning.[/quote]... You feel compelled to explain that: Of course the chance of winning with an all-prime ticket is the same as the chance of winning with a ticket bearing some or all composites, but by discarding the latter you've increased your cost of obtaining the former. And by discarding the latter, you eliminate your chances to win with one of them, though it doesn't change the chance of winning with the all-primes ticket.

roger 2008-10-04 01:36

[QUOTE]...you build one of these (preferably the 3rd one) for crunching:

Helmer I

Helmer II

Helmer III.

- and you build a nuclear powerplant to power Helmer III. [/QUOTE]

:shock: *Wants!*

EDIT: Why's this guy using them for rendering anyway??

Uncwilly 2008-10-04 06:40

[QUOTE=roger;144446]:shock: *Wants!*

EDIT: Why's this guy using them for rendering anyway??[/QUOTE]A 3-D TV show. It is being done in a 4000x4000 pixel format.

roger 2008-10-05 04:21

Ah. Although on his website it said it took overnight to render a single scene on his old computer (which, considering his newer one, must still be pretty decent). Either the objects being rendered were incredibly complicated, or the lighting/shadows etc, or some other problem that I don't know about.

ET_ 2008-10-05 09:26

[QUOTE=roger;144511]Ah. Although on his website it said it took overnight to render a single scene on his old computer (which, considering his newer one, must still be pretty decent). Either the objects being rendered were incredibly complicated, or the lighting/shadows etc, or some other problem that I don't know about.[/QUOTE]

I'm pretty sure he doesn't use POV-Ray. That way he would better "distribute" his work. :smile:

Luigi

cheesehead 2008-10-06 05:07

... you put in an advance order for the Pool PC ([URL]http://home.howstuffworks.com/10-wacky-home-inventions9.htm[/URL]) so you can take advantage of its watercooling to overclock it.

jinydu 2008-10-16 06:01

[QUOTE='Uncwilly']Further update, the local firehouse is within the evacuation area. Thousands (maybe 10's of) have been evacuated.[/QUOTE]

... upon reading that, you think "Thank goodness the machines were saved."

joblack 2008-10-16 23:49

[quote=TauCeti;5922]... you persuade your dad that a dual Xeon system _is_ the minimum requirement today to print his shopping list
[/quote]

Better would be a nehalem 12 core server system ;).

uigrad 2008-10-20 21:53

[quote=Primeinator;143742]You get one of these- [URL]http://images.google.com/imgres?imgurl=http://media.techeblog.com/images/submerge_5.jpg&imgrefurl=http://www.techeblog.com/index.php/tech-gadget/feature-mineral-oil-absorbs-heat-cools-computer-system-video-&h=338&w=450&sz=66&hl=en&start=115&usg=__Ed3DaAEyxYWroal5gwnR4WwmyR4=&tbnid=J61-BqILoiRYhM:&tbnh=95&tbnw=127&prev=/images%3Fq%3Dcomputer%2Bheat%26start%3D108%26gbv%3D2%26ndsp%3D18%26hl%3Den%26sa%3DN[/URL][/quote]


I'm bringing this post about a oil-immersed system back to the foreground, since I just found a company that has begun producing retail versions of an oil-immersed system:
[url]http://www.hardcorecomputer.com[/url]

There's a good article about it here:
[url]http://www.maximumpc.com/article/features/hardcorepc_reactor[/url]

The article says that prices range $4k to $11k. The base price on the website is $5560, and that includes:
Core2 Extreme QX9650
4GB DDR3 (speed not listed!)
GeForce GTX 260
750GB hard drive
Pioneer DVD burner
32-bit Vista Ultimate

:w00t:

jrk 2008-10-21 00:29

[quote=uigrad;145968] 32-bit Vista Ultimate [/quote]
Such a waste :sad:

jinydu 2008-10-21 03:31

Most expensive configuration:

Core 2 Extreme QX9770
8GB Memory DDR3
3 NVIDIA GeForce GTX 280s
3 Samsung 64GB SSDs
2 Samsung 1TB drives
Panasonic Blu-ray burner
Windows Vista Ultimate 64-bit
802.11 a/b/g/n wireless adapter
6 Samsung 245BW 24" LCD (minimum resolution 1920x1280, no idea why you would want more than 1)
Logitech G11 keyboard
Logitech G9 mouse
Creative GigaWorks G550W 5.1 speakers
Creative Aurvana Live! headphones
Next Day Air Early AM shipping

Price: $14,888.75 :shock::shock::shock:

mdettweiler 2008-10-21 03:37

[quote=jinydu;145990]Most expensive configuration:

Core 2 Extreme QX9770
8GB Memory DDR3
3 NVIDIA GeForce GTX 280s
3 Samsung 64GB SSDs
2 Samsung 1TB drives
Panasonic Blu-ray burner
Windows Vista Ultimate 64-bit
802.11 a/b/g/n wireless adapter
6 Samsung 245BW 24" LCD (minimum resolution 1920x1280, no idea why you would want more than 1)
Logitech G11 keyboard
Logitech G9 mouse
Creative GigaWorks G550W 5.1 speakers
Creative Aurvana Live! headphones
Next Day Air Early AM shipping

Price: $14,888.75 :shock::shock::shock:[/quote]
Of course, if you're [I]really[/I] addicted, you'd leave out 2 of the SSD's, both of the hard drives, Vista Ultimate (replace it with Linux instead), the GPU's and the fancy monitors, keyboard, mouse, speakers and headphones, and use all that money to pick up one or two more machines for even more crunch power. :grin: (Removing all the goodies that don't add raw computing power will also serve to deter you from using the machine for other things, which would sap too much CPU time.) :wink:

ixfd64 2008-10-21 03:59

1 Attachment(s)
[QUOTE]Windows Vista Ultimate 64-bit[/QUOTE]

.

Kevin 2008-10-21 06:51

[QUOTE=jinydu;145990]Most expensive configuration:

Core 2 Extreme QX9770
8GB Memory DDR3
3 NVIDIA GeForce GTX 280s
3 Samsung 64GB SSDs
2 Samsung 1TB drives
Panasonic Blu-ray burner
Windows Vista Ultimate 64-bit
802.11 a/b/g/n wireless adapter
6 Samsung 245BW 24" LCD (minimum resolution 1920x1280, no idea why you would want more than 1)
Logitech G11 keyboard
Logitech G9 mouse
Creative GigaWorks G550W 5.1 speakers
Creative Aurvana Live! headphones
Next Day Air Early AM shipping

Price: $14,888.75 :shock::shock::shock:[/QUOTE]

You can get a Mac Pro that costs twice as much if you go for the max options. Dual 3.2 GHZ Xeons, 32GB FBDIMM memory, 4x1TB harddrives in a RAID array, Nvidia Quadra FX 5600, dual 30" flat panels, and a bunch of other expensive software and networking addons.

henryzz 2008-10-21 19:05

[quote=uigrad;145968]32-bit Vista Ultimate[/quote]
cant 32bit vista ultimate be upgraded to 64bit i seem to remember reading that
if so why ship with 32bit vista

Xyzzy 2008-10-21 19:15

The retail version of Vista Ultimate ships with both 32-bit and 64-bit media.

[URL]http://www.microsoft.com/windows/windows-vista/compare-editions/64-bit.aspx[/URL]

[quote][B]64-bit DVD[/B]

If you bought Windows Vista Home Basic, Home Premium, or Business as a retail, packaged product, and you would like a DVD of 64-bit software media to install on your PC, please choose your language:

[B]Note:[/B] 64-bit media is included in the box with Windows Vista Ultimate.[/quote]

uigrad 2008-10-21 19:26

1 Attachment(s)
[quote=jinydu;145990]
6 Samsung 245BW 24" LCD (minimum resolution 1920x1280, no idea why you would want more than 1)[/quote]
Browsing the dual-boxing.com forums is a quick way to find dozens of pictures of setups with 6 monitors.
6 seems to be the most you can fit comfortably on a desk.

Here's a quick example:

joblack 2008-10-22 00:51

[quote=Andi47;141224]you read a news about a Prime Minister somewhere and think about [URL="http://www.mersenneforum.org/showthread.php?p=141189#post141189"]M45[/URL] or [URL="http://www.mersenneforum.org/showthread.php?p=141187#post141187"]M46[/URL] before you even read the word "minister".

(this just happened to me)[/quote]

laughing my ass off ...

petrw1 2008-11-07 22:22

1 Attachment(s)
No words required....

starrynte 2008-11-08 03:35

you build a computer whose purpose is solely for GIMPS.
speaking of which, what would such a computer be like?
(i.e. perhaps large FPU units (WITH DOUBLE PRECISION :D), a "prime95 OS" :D, very good cooling, Lx caches designed to have just enough capacity to a certain FFT length?)

jinydu 2008-11-19 20:39

... you save up 10,000 LL test results, and then report them all on the same day to inflate your "CPU results in last 24 hours" chart.

Gordon 2008-11-29 10:57

[quote=Uncwilly;122633]You win the lottery and you purchase all of the computers that found the recent primes. Then you set up a road-side prime museum. It includes: posters of all of the m-primes for sale, banners on the walls of them in 4-point type, Mersenne's death mask, a lock of George's hair, and other wonders. Later you hire Paul to work as a docent.[/quote]

*my* computer isn't for sale! (M2976221)

G

jinydu 2008-11-29 23:20

[QUOTE=Gordon;151217]*my* computer isn't for sale! (M2976221)

G[/QUOTE]

Gordon Spence, I presume? Welcome to the forum.

ixfd64 2008-12-02 05:32

I think Gordon Spence's username is "nitro" (unless he created a second account).

petrw1 2008-12-02 05:42

For reasons that are not important in this thread GIMPS reports your new Quad in your CPU Report three times ... and for a second you start to drool.:banana:

embretr 2009-03-05 21:19

[QUOTE=eepiccolo;5916]you never turn the heaters on in your house.[/QUOTE]

HOT DAMN.. that's me.. I've actually got a stack of equipment (got it 4 cheap at some liquidation sale) and I'm running less than half of it because it heats enough.

GARYP166 2009-03-11 23:54

[quote=cheesehead;144601]... you put in an advance order for the Pool PC ([URL]http://home.howstuffworks.com/10-wacky-home-inventions9.htm[/URL]) so you can take advantage of its watercooling to overclock it.[/quote]

In fact water-powered computers (if not water cooled) have been around since 1973 - see

[URL]http://catb.org/jargon/html/lexicon.html[/URL]

especially

[URL]http://catb.org/jargon/html/G/glitch.html#crunchly73-06-04[/URL]

onwards

Gary

jinydu 2009-03-22 22:09

... you browse mersenneforum during your honeymoon.

or better yet

... you refuse to go on a honeymoon because it would interrupt your browsing.

stathmk 2009-03-30 02:09

Mersenne Comic Strip
 
1 Attachment(s)
...If you remember the day you saw this Ripley's comic strip (January 29, 2004): [URL]http://comics.com/ripleys_believe_it_or_not/?DateAfter=2004-01-29&DateBefore=2004-01-29&Order=d.DateStrip+DESC&PerPage=50&Search=&x=13&y=9[/URL]

joblack 2009-04-02 20:56

[quote=roger;122603]You win the lottery and splurge on several Crays :grin: Now you can finally catch up to the guru's of the search! Also, you are now warmer because of your (computer's) effort![/quote]

No kidding - I was actually daydreaming about getting a decent oct- or 16- or 32-core intel machine (after a lottery wining) for being the first to get a 100M mersenne prime number ;).

Mini-Geek 2009-04-13 16:58

...if you read "[URL="http://www.networkcomputing.in/Supercomputer-as-a-service-001Apr009.aspx"]Supercomputer as a service[/URL]" and wonder how much it'd cost and how good it is at finding primes. (guilty...not that I'd actually buy time on it...)

ET_ 2009-04-14 07:50

...you read about cloud computing on Amazon, and start checking how many virtual CPUs would balance your actual electric bill... :cry:

Luigi

fivemack 2009-04-14 09:11

Ah, you did that too. I think ECC is a system for providing computers to companies whose marketing people want them to over-provision for peak load and whose finance people don't want to pay for the too-big cluster; using it for jobs that actually load the machines 24/7 is silly.

Renting a 16G machine for the time taken just to build one matrix which might need 16G of memory costs of the order of the price of upgrading one of my machines to 16G.

Power costs are an issue, but I don't think much of the current work on power-efficient computing works for the 24/7 compute-farm model; being able to do nothing using 100W rather than 300W is very nice for those people who've over-provisioned and have computers that do nothing.

(IME a computer lasts three years, and uses electricity costing one third of a computer a year; so I'd be prepared to pay twice as much for one that was powered by an inbuilt perpetual-motion machine and used no electricity at all)

Q9400S is getting there, but it's £120 more than Q9400, which buys about 1200kW-hours over say a 24000-hour lifetime ... which means it would have to save 50W to break even, and it only saves 30W.

joblack 2009-04-19 02:31

[quote=mdettweiler;145991]Of course, if you're [I]really[/I] addicted, you'd leave out 2 of the SSD's, both of the hard drives, Vista Ultimate (replace it with Linux instead), the GPU's and the fancy monitors, keyboard, mouse, speakers and headphones, and use all that money to pick up one or two more machines for even more crunch power. :grin: (Removing all the goodies that don't add raw computing power will also serve to deter you from using the machine for other things, which would sap too much CPU time.) :wink:[/quote]

yeah f**k that graphics card - you don't need it for prime95.

Uncwilly 2009-04-19 03:14

You use your networked 386 to d/l opera and run it on your machines with all graphics off to say cycles.

Mini-Geek 2009-04-19 11:58

...you buy an iPhone so that you can browse the web without stealing cycles from your computers.
...you then realize that you might be able to port Prime95 to the iPhone and become obsessed with making it run Prime95 at as good a speed is possible on its hardware.
...then you overclock the iPhone.


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