Results 1 to 30 of 35
Thread: Titan Supercomputer
-
2012-10-30, 06:00 PM (ISO 8601)
- Join Date
- Jun 2005
- Location
- Oz county
- Gender
Titan Supercomputer
Good gods, that is a lot of computer.
Don't think it would fit in my room, though. Too bad the article neglected to mention what the Dept. of Energy is going to do with their new supercomputer.I used to live in a world of terrible beauty, and then the beauty left.
Dioxazine purple.
-
2012-10-30, 07:08 PM (ISO 8601)
- Join Date
- May 2005
- Location
- control+apple+alt+8
Re: Titan Supercomputer
TopSecret's First Ever Two Page Tabletop ContestIf you have any questions, want to talk about the contest entries, or you just want to hang out with cool people, visit our forums.
-
2012-10-30, 07:09 PM (ISO 8601)
- Join Date
- Feb 2006
- Location
- Das Kapital
-
2012-10-30, 08:02 PM (ISO 8601)
- Join Date
- Apr 2011
- Location
- Oregon
Re: Titan Supercomputer
Guess who's good at avatars? Thormag. That's who.
A Campaign Setting more than a year in the making, Patria!
-
2012-10-30, 08:07 PM (ISO 8601)
- Join Date
- Jan 2010
- Location
- Malbolge
- Gender
-
2012-10-30, 08:13 PM (ISO 8601)
- Join Date
- Sep 2008
Re: Titan Supercomputer
<insert Crysis joke here/>
-
2012-10-30, 09:08 PM (ISO 8601)
- Join Date
- Jan 2010
Re: Titan Supercomputer
Yeah, but it still doesn't compare to...
Spoiler
the Lappy 486
-
2012-10-30, 09:13 PM (ISO 8601)
- Join Date
- Dec 2010
- Location
- right behind you
Re: Titan Supercomputer
I had a question about a part of that article.
That translates to 299,008 CPU cores,"Interdum feror cupidine partium magnarum Europae vincendarum"
Translation: "Sometimes I get this urge to conquer large parts of Europe."
"If you don't get those cameras out of my face, I'm gonna go 8.6 on the Richter scale with gastric emissions that'll clear this room."
-
2012-10-30, 11:40 PM (ISO 8601)
- Join Date
- Apr 2011
- Location
- Someplace Nice
- Gender
-
2012-10-30, 11:55 PM (ISO 8601)
- Join Date
- Apr 2011
- Location
- In a cornfield
- Gender
Re: Titan Supercomputer
Given it's DOE funded, I'm guessing a big focus will be on energy storage and generation materials, possibly some climate work, radiation modelling, and/or particle physics simulations or data collation is also a possibility. In short, it'll be for whatever gets the computing time grants funded.
I also read recently that there's a new supercomputer online at the University of Wyoming, called Yellowstone, that will be the first of its kind to be solely dedicated to geoscience research.
EDIT: Oh, it's specifically ORNL, which means it will almost certainly see a lot of work in the nuclear sciences.Last edited by the_druid_droid; 2012-10-30 at 11:55 PM.
This Machine Surrounds Hate And Forces It To Surrender
Ponythread Learns to Draw!
SpoilerBleeeeh! Alfalfa Monster!
Avatar by Aruius
-
2012-10-31, 12:16 AM (ISO 8601)
- Join Date
- Nov 2007
- Location
- Indianapolis
- Gender
Re: Titan Supercomputer
Multi-core CPUs brought some of the power of server/supercomputer clusters to the standard home/business user at an affordable and operable price, and greatly multiplied the power available to those servers and supercomputers that were already using multiple physical chips. (For sake of reference: In the Bad Old Days of single-core processors, the cluster in the article would only have 18,688 computing units available to it.. and that's not counting the extra power it now has thanks to the advancements in using graphical processors for general-purpose computing.)
-
2012-10-31, 02:04 AM (ISO 8601)
- Join Date
- Jan 2011
- Location
- Glasgow, Scotland
- Gender
-
2012-10-31, 02:19 AM (ISO 8601)
- Join Date
- Aug 2011
- Gender
-
2012-10-31, 02:22 AM (ISO 8601)
- Join Date
- Aug 2008
Re: Titan Supercomputer
"Okay, so I'm going to quick draw and dual wield these one-pound caltrops as improvised weapons..."
---
"Oh, hey, look! Blue Eyes Black Lotus!" "Wait what, do you sacrifice a mana to the... Does it like, summon a... What would that card even do!?" "Oh, it's got a four-energy attack. Completely unviable in actual play, so don't worry about it."
-
2012-10-31, 02:36 AM (ISO 8601)
- Join Date
- Feb 2007
- Location
- Manchester, UK
- Gender
Re: Titan Supercomputer
It would be almost completely pointless having that many cores in a general-purpose desktop computer, mind you, because the sort of applications the typical person runs aren't written to take advantage of them. It's really hard to write a program that will make efficient use of nearly 300,000 parallel threads of execution, and if you're leaving some of the cores idle, they might as well not be there!
-
2012-10-31, 02:35 PM (ISO 8601)
- Join Date
- Nov 2009
Re: Titan Supercomputer
Here's an article from Oak Ridges National Laboratory
Here's the second paragraph:
Titan, which is supported by the Department of Energy, will provide unprecedented computing power for research in energy, climate change, efficient engines, materials and other disciplines and pave the way for a wide range of achievements in science and technology.
-
2012-10-31, 02:41 PM (ISO 8601)
- Join Date
- Jan 2010
Re: Titan Supercomputer
-
2012-10-31, 04:40 PM (ISO 8601)
- Join Date
- Oct 2012
- Location
- Harrisburg PA,
- Gender
Re: Titan Supercomputer
For bonus point, Take a guess at how long that beast will take to crack a 10 diget alpha-numeric passy. assuming numbers, letters and 10 special chars.
If you wish to have a voice chat, Send me a PM and we can arrange it. Provided you use skype.
I do not give permission for posts may be used for research purposes unless written permission is given.
-
2012-10-31, 08:06 PM (ISO 8601)
- Join Date
- May 2005
- Location
- control+apple+alt+8
Re: Titan Supercomputer
Let's see....
10+10+26+26=72 total possible values per digit
(72^10)/(20e12)=187195.312131s = maximum time
187195.312131/2=93597.6560656s = 1559.96093443 minutes = 25.9993489071 hours average time
So in ~26 hours it can crack upwards of 95% of passwords in use today. But I have the strangest feeling it may be used for other purposes or at least cracking stronger passwords...
Also, China is already building it bigger...Last edited by TSGames; 2012-11-01 at 03:06 AM.
TopSecret's First Ever Two Page Tabletop ContestIf you have any questions, want to talk about the contest entries, or you just want to hang out with cool people, visit our forums.
-
2012-10-31, 08:42 PM (ISO 8601)
- Join Date
- Dec 2010
- Location
- right behind you
Re: Titan Supercomputer
WRONG! The greatest reference is THIS!
"Interdum feror cupidine partium magnarum Europae vincendarum"
Translation: "Sometimes I get this urge to conquer large parts of Europe."
"If you don't get those cameras out of my face, I'm gonna go 8.6 on the Richter scale with gastric emissions that'll clear this room."
-
2012-11-02, 10:50 AM (ISO 8601)
- Join Date
- Jul 2007
- Location
- TGaPT
Re: Titan Supercomputer
For question everyone is asking, isn't DoE in charge of simulating behaviour of nuclear materials, instead of testing, necessitating the computing power?
If you want to pay 100 mln $ for desk computer, sure, go ahead
Also, it's 300K different things at once, most probably, parallel programming is hard.Come one, come all! GitP MLP Steam Group is open!
Current location of the last MLP Thread OP, too.
Want to ask me something? Use MAIL or message me on Steam!
"Well, the Great and Powerful Trixie can't actually transport you to Equestria... But!
The Great and Powerful Trixie can beat you over the head until you think that's what happened!"
-
2012-11-02, 01:59 PM (ISO 8601)
- Join Date
- Dec 2010
- Location
- right behind you
Re: Titan Supercomputer
Now, how do you even set things up to run 300k tasks simultaneously? I mean, it seems like it would take an awful lot of setup time to tell the computer to do this this this this that these and a little of those all at once. In other words, sure it could do 300k math problems at once, but how do you input 300k math problems for it to do?
"Interdum feror cupidine partium magnarum Europae vincendarum"
Translation: "Sometimes I get this urge to conquer large parts of Europe."
"If you don't get those cameras out of my face, I'm gonna go 8.6 on the Richter scale with gastric emissions that'll clear this room."
-
2012-11-02, 02:37 PM (ISO 8601)
- Join Date
- Nov 2009
Re: Titan Supercomputer
Most of the math problems that this thing will be asked will have to be broken down into multiple steps, and many of those steps can be run at the same time without affecting the results of other steps. Having your program or simulation figure out how to split up the tasks to take advantage of this the goal, but writing a program that can efficiently do this is no small task. Also, with a beast like this, it is likely that there will be a whole lot of people using it at the same time running their separate programs while the operating system that is running on the computer will keep track of who is running what, and to a certain extent, keep the users from messing with one another's work.
-
2012-11-02, 02:41 PM (ISO 8601)
- Join Date
- Jul 2007
- Location
- TGaPT
Re: Titan Supercomputer
Eh, they probably have one 'computer' per 64-256 cards sending data and collecting results? Getting 128 cards to do 128 things is easy, it's getting them to do one thing in cooperation that's very hard. This also makes range of problems this computer can tackle much smaller.
In fact, your computer sends at this moment data to 2-8 cores on your CPU and to dozens to hundreds of computing units on your GPU, it's nothing special.Come one, come all! GitP MLP Steam Group is open!
Current location of the last MLP Thread OP, too.
Want to ask me something? Use MAIL or message me on Steam!
"Well, the Great and Powerful Trixie can't actually transport you to Equestria... But!
The Great and Powerful Trixie can beat you over the head until you think that's what happened!"
-
2012-11-02, 03:19 PM (ISO 8601)
- Join Date
- Jan 2010
-
2012-11-03, 08:44 PM (ISO 8601)
- Join Date
- Apr 2011
- Location
- In a cornfield
- Gender
Re: Titan Supercomputer
There's actually a couple ways this can work. As folks have already mentioned, it's doubtful that one program will use all the cores available. Most likely, an individual user will take time from a few hundred to a few thousand cores, depending on their job.
Second, how the work is divided up depends on the problem. In general, there are two approaches - data parallelism and task parallelism. In the first, you have lots of items you want to operate on, and you split those items between the cores and have them perform the same operation on each of the bits (for example, dividing a million-item list into 1k chunks and then sorting each chunk and recombining). In the second, each core would have the same set of data, but would do differing things to it.
In my own experience, scientific applications tend to fall more into the data-parallelism category, where you have large matrices or many data points to process for example.
As far as actually doing the division, several methods exist, one of the most popular of which (as far as I know) is MPI, or the Message Passing Interface. It works in C, C++, and FORTRAN (and possibly some others) and provides an interface that tells the controller how to split and recombine the data between processes running on different cores, without requiring major language modifications.This Machine Surrounds Hate And Forces It To Surrender
Ponythread Learns to Draw!
SpoilerBleeeeh! Alfalfa Monster!
Avatar by Aruius
-
2012-11-04, 12:57 AM (ISO 8601)
- Join Date
- Apr 2010
- Location
- London, EU
- Gender
Re: Titan Supercomputer
How about this for a reference ?
π = 4
Consider a 5' radius blast: this affects 4 squares which have a circumference of 40' — Actually it's worse than that.
Completely Dysfunctional Handbook
Warped Druid Handbook
Avatar by Caravaggio
-
2012-11-04, 02:45 AM (ISO 8601)
- Join Date
- Feb 2007
- Location
- Manchester, UK
- Gender
Re: Titan Supercomputer
But your computer probably doesn't spend most of its time at 100% utilisation. When you're spending the money to put together a machine with the sort of computing power we're talking in this thread, if it spends most of its life half idle then you just wasted your money--you could have built one half as powerful that would have done the job just as effectively. Therefore, making sure you get the best possible utilisation out of your 300k cores is a critical factor that isn't something the programmers of desktop machines need to worry themselves over!
-
2012-11-04, 02:40 PM (ISO 8601)
- Join Date
- Nov 2006
Re: Titan Supercomputer
It's actually easier than it sounds (to write parallel programs). You can typically put something together using OpenCL, NVidia CUDA, or cluster existing programs together (MPI) in some fashion. Getting one card, two cards, or 128 cards to do the same thing isn't all that different once you have driver level software/firmware to handle the scheduling aspect.
The problem is that your research interest has to be suitably parallel. This heavily favors matrix-based computations, as an example.
factotum, you don't always want to run at 100% CPU load. Electricity costs really add up when you're running a supercomputer (or even just a data center).Avatar by araveugnitsuga | Play by Post (Guide) | Steam
Homebrewers' Extended Signatures
Hey Look, a Summer Reading List!
-
2012-11-04, 03:02 PM (ISO 8601)
- Join Date
- Apr 2011
- Location
- In a cornfield
- Gender
Re: Titan Supercomputer
Yeah, this is quite important. Also, in addition to parallel matrix operations, a lot of simulations these days for materials science, physics and chemistry make use of molecular dynamics approaches, which take the alternate path of assigning groups of atoms/molecules to separate processors for calculation.
I'm not personally sure about the climate work, although depending on their model they may have quite a lot of vector-type calculations.This Machine Surrounds Hate And Forces It To Surrender
Ponythread Learns to Draw!
SpoilerBleeeeh! Alfalfa Monster!
Avatar by Aruius