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[PS3Fanboy]PS3 to simulate black-hole collisions. - Page 6

post #51 of 83
this stuff is great and all but I just want to watch/stream movies and music and play a few games. So far its A+ on all but games...but those are coming around
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post #52 of 83
Why would they be doing this? It has already been done via supercomputers and the like, I read about it on Physorg like a year ago... boggle...

Heck, they even talked about it a few episodes ago on "The Universe" on the history channel.

Some kinda publicity stunt I gander.. And a poor one.

~R
post #53 of 83
Quote:
Originally Posted by relic2279 View Post
Why would they be doing this? It has already been done via supercomputers and the like, I read about it on Physorg like a year ago... boggle...

Heck, they even talked about it a few episodes ago on "The Universe" on the history channel.

Some kinda publicity stunt I gander.. And a poor one.

~R
not exactly, this is a university based project, based on there own simulations and calculations, this will have a different output to any previous test and therefore makes new discoveries/theories.

I believe that the PS3 does not utilize the gpu for calculations like this as the cpu already holds a similar amount of FLOP power plus the better cache etc.
Again the reason the PS3 was chosen for doing this as it is the best budget option for raw processing power, hence the reason a new super computer is being built that utilizes 11000 cell processors.
    
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post #54 of 83
Quote:
Originally Posted by Armadi110 View Post
hmm, are we actually going to talk about black holes here and there physics?
Just to end the current argument/discussion, the PS3 is probably the best power:money option on the market atm, the sheer power it holds for calculating linear processes is phenomenal and blows any Intel/AMD cpu out of the water in its field, thats what makes it so useful for applications such as simulations and long complex calculations like F@H.

On the scientific side of things, this is kind of old news in terms of simulating cosmos. But still interesting, but as already said, a computer will do what its told to do, and will show whatever you want it to show, there is no way of calculating black hole collisions until we have a full and clear understanding of black hole physics, all we have atm is theories. Im personally a fan of Hawkins theories of black holes, time and worm holes and if you want to get into this kind of stuff, A good book to read is 'A Brief History of Time' By S. Hawkin. It is an interesting read and really takes my college physics onto a new level.

Any other opinions on this?
I like Steven Hawkin; I have The Universe in a Nutshell, I've read A Brief History of Time also of interest to me was Faster than Light: Superluminal Loopholes in Physics
    
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post #55 of 83
Quote:
Originally Posted by Armadi110 View Post
not exactly, this is a university based project, based on there own simulations and calculations, this will have a different output to any previous test and therefore makes new discoveries/theories.

I believe that the PS3 does not utilize the gpu for calculations like this as the cpu already holds a similar amount of FLOP power plus the better cache etc.
Again the reason the PS3 was chosen for doing this as it is the best budget option for raw processing power, hence the reason a new super computer is being built that utilizes 11000 cell processors.


16 PS3's do not equate to the processing power of ANY supercomputer made within the last decade.
If that was the case, why not just buy 20,000 PS3's instead of spending a millions on a petaflop supercomputer..

Again, publicity stunt....

oh and 11,000 cell processors don't hold a candle to whats being devoloped by Advanced Architecture let alone the newest super computers. Teraflops? laugh.. Petaflops? laugh... Exaflop speed:

Source
Quote:
An exaflop is a thousand times faster than a petaflop, itself a thousand times faster than a teraflop. Teraflop computers —the first was developed 10 years ago at Sandia — currently are the state of the art. They do trillions of calculations a second. Exaflop computers would perform a million trillion calculations per second.
Source


Now thats playing with power.... no pun intended.


~R
post #56 of 83
Quote:
Originally Posted by Armadi110 View Post
hmm, are we actually going to talk about black holes here and there physics?

Any other opinions on this?
I believe we know enough about black holes to do these kind of calculations. I've read all of the books mentioned at least once, and have them on audio CD.

Some are now incorrect. Hawking adjusted/changed a bit of his theories on black holes a couple years ago long after those books were written.

I consider myself an 'amateur astrophysicist' as I took many many classes in college, but changed my major due to job shortage and pay scale.

If you really know your stuff, you can debate many space related physics theories on phyorg.com forum's ...
I'm a regular poster there. But make sure you know your stuff, alot of the posters are professors & advanced students...

~R
post #57 of 83
Quote:
Originally Posted by relic2279 View Post
16 PS3's do not equate to the processing power of ANY supercomputer made within the last decade.
If that was the case, why not just buy 20,000 PS3's instead of spending a millions on a petaflop supercomputer..

Again, publicity stunt....

oh and 11,000 cell processors don't hold a candle to whats being devoloped by Advanced Architecture let alone the newest super computers. Teraflops? laugh.. Petaflops? laugh... Exaflop speed:

Source




Now thats playing with power.... no pun intended.


~R
Universities ARE getting thousands of PS3's together for things like this. Its not a publicity stunt. Its a cheap supercomputer. And who cares about what AA is "developing". The PS3 is here, right now, and wont cost billions of dollars to create a large powerful system of computers.

"publicity stunt"..

No, more like using money wisely. $400 for what the PS3 offers in performance with the Cell is a very good deal.
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post #58 of 83
Quote:
Originally Posted by Lelouch View Post
Universities ARE getting thousands of PS3's together for things like this. Its not a publicity stunt. Its a cheap supercomputer. And who cares about what AA is "developing". The PS3 is here, right now, and wont cost billions of dollars to create a large powerful system of computers.

"publicity stunt"..

No, more like using money wisely. $400 for what the PS3 offers in performance with the Cell is a very good deal.
ignorance is bliss...
post #59 of 83
Quote:
Originally Posted by R3ap3R View Post
Are you measuring per SPE? Cause the real answer is 2 Tflops

source
Dead wrong there. Sony just likes to make up numbers and throw them out there. No surprise though, Sony has had a long history of dishonesty.

The real processing power can be figured out mathematically.

Each SPE can do 4 multiply-adds per clock cycle, so that a total of 8 operations per clock. Multiply that by a clock of 3.2GHz and you get 25.6Gflops. Since there are 7 functional SPE's and one PPE, multiply that number by 8 and you get 204.8Gflops, or rounded up to 205Gflops as offically stated.

The GPU puts out nowhere near 1.8Tflops as Sony claims. The RSX is based on the G70 architecture, which consists of 24 pixel shaders. According to official specs, each shader can do 8 multiply-add operations, so that makes a total of 16 operations per shader, per clock. Multiply that by 24 and you get 384 operations per clock. Take that, in turn, and multiply it by the 550MHz clockspeed and you get 211.2 Gigaflops. Nowhere near 1.8 Teraflops. Wonder where Sony pulled those numbers from?

Also, here is an old post I made regarding the same thing:
Quote:
Originally Posted by HrnyGoat View Post
I found the statement that the RSX in the PS3 can do 1.8 Teraflops a little absurd. So I decided to do some research on it.

Here we have Sony's initial claims:
Quote:
GPU: RSX @550MHz

1.8 TFLOPS floating point performance
Full HD (up to 1080p) x 2 channels
Multi-way programmable parallel floating point shader pipelines
Source: http://ps3.ign.com/articles/614/614682p1.html

Now take a look at this slide:

Source: http://www.watch.impress.co.jp/game/...29/3dps309.htm

Note the number of FLOPs (floating point operations) per clock. 384 to be exact. Now its time to do a little multiplication. Multiply the number of FLOPs by the RSX's clockspeed, which is 550MHz.

384 x 550,000,000 = 211,200,000,000

211.2 Billion is the result. That ends up being 211.2 Gigaflops. Thats right, Gigaflops, not Teraflops.

211.2 GFLOPS = 211,200,000,000
1.8 TFLOPS = 1,800,000,000,000

That means that Sony has exagerated the power of the RSX by a factor of 8. In fact it is 7 Gigaflops slower than what Sony claims for the CELL (218 [205 now] Gigaflops). Makes you wonder how exaggerated the CELLs power is. Considering that Sony is being truthful about the CELL, that means that the total system power is only 429 [416.2] Gigaflops, which is nowhere close the 2 Teraflops that Sony "claims" the PS3 can do.


Does Sony think they can get away with such deception? If you know any die-hard Sony fanboys, make sure they see this. I think they need to know the truth
Quote:
Originally Posted by stargate125645 View Post
Does the PS3 allow the GPU to help with computations, or is it only the Cell processor?
As far as I know, the G70 architecture is incapable of GPGPU tasks.
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post #60 of 83
Quote:
Originally Posted by relic2279 View Post
ignorance is bliss...
The Cell is the fastest CPU per dollar. Period.

There's faster supercomputers that cost hundreds of millions of dollars, sure. But a PS3 for 400 dollars is faster than any 5,000 dollar supercomputer from 3 years ago.
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