Best driving Xbox 360 game?
general purpose processing refers to achieving good results for a broad set of applications. its a very loosely used term as far as i know. cell specializes in floating point calculation and parallele processing.
http://xbox360.ign.com/articles/617/617951p1.html
this article describes xbox360's advantage in general purpose processing over cell, but take it with a grain of salt since its released by M$
http://xbox360.ign.com/articles/617/617951p1.html
this article describes xbox360's advantage in general purpose processing over cell, but take it with a grain of salt since its released by M$
not much, ps3 is vastly superior as far as graphics is concerned. otherwise its up to the games... if you watched the E3 live gamespot shows they are saying that ps3 games are clearly looking superior now. programing for ps3 seems real hard though, managing 8 cores with possibility of hyperthreading is tricky business, you cant program sequentially anymore, everythings gotta be dynamically scalable. you really gotta know your sh*t and your algorithms. I personally failed my Dykstra's algorithm project
Originally Posted by wnt1bd
Dude speaka engrish, damn i don't know wtf you guys are talking about....IS it Good or not...LOL
Originally Posted by terryw
http://www.it.lut.fi/kurssit/05-06/T...ture-paper.pdf
http://en.wikipedia.org/wiki/Cell_processor
they do use a form of RISC instruction set, im not saying that it can only do matix/shader etc. im saying that it specializes in doing parallele processing mainly, floating point calculations, which is what 3d/image processing needs. bad wording on my part.
"Both the PPE and SPE are RISC architectures with a fixed-width 32-bit instruction format. The PPE contains a 64-bit general purpose register set (GPR), a 64-bit floating point register set (FPR), and a 128-bit VMX register set."
during last year's E3 when the cell was formally unvealed, they concluded that the Xbox360's 3core CPU is more powerful for general processing than the cell.
http://en.wikipedia.org/wiki/Cell_processor
they do use a form of RISC instruction set, im not saying that it can only do matix/shader etc. im saying that it specializes in doing parallele processing mainly, floating point calculations, which is what 3d/image processing needs. bad wording on my part.
"Both the PPE and SPE are RISC architectures with a fixed-width 32-bit instruction format. The PPE contains a 64-bit general purpose register set (GPR), a 64-bit floating point register set (FPR), and a 128-bit VMX register set."
during last year's E3 when the cell was formally unvealed, they concluded that the Xbox360's 3core CPU is more powerful for general processing than the cell.
I still don't get the claim that the xbox hardware is better suited for "general purpose" than the ps3 hardware. For gaming, it's all about floating point operations, period. What else is there? Matrix math, 3d, physics, everything, it's all about the flops. The fact is games don't need fast int ops anymore.
Even if it's not about games, but media, it's still about the flops(not that decoding a sound stream and applying transforms is very intensive). Regardless, neither of these machines are "general purpose", and neither are those supercomputers.
But I do agree; parallelism is the future, and changes the world. Unfortunately, in typical "general use" applications, there's simply not much opportunity for parallelism.
well as far as the number being skewed is concerned, i should have said that the comparison is skewed. you cant argure a number
Im certain that ps3's theoretical limit is up there in terms of FLOPS, i just think that the cell in the ps3 can hang with the conventional super computers in certain types of tasks, but it would lag far behind in other types of tasks. thats what i mean by skewed, ps3 can render graphics at such an alarming rate up there with the super computers, but its not a super computer. I understand FLOP is the widely accepted method of comparing processors, its sure better than comparing clockspeed, i think the capability of supercomputers are far beyond the cell despite the FLOPS rating (depending on the type of task). sorta like how todays video cards, Geforce 6800 for example has 4 times the transister count than a pentium 4 CPU, but its very specialized in its function.
as far as the article from MS comparing the the general purpose processing power, i totally agree with you. as far as video games, and most media related tasks, PS3 is much more superior.
Im certain that ps3's theoretical limit is up there in terms of FLOPS, i just think that the cell in the ps3 can hang with the conventional super computers in certain types of tasks, but it would lag far behind in other types of tasks. thats what i mean by skewed, ps3 can render graphics at such an alarming rate up there with the super computers, but its not a super computer. I understand FLOP is the widely accepted method of comparing processors, its sure better than comparing clockspeed, i think the capability of supercomputers are far beyond the cell despite the FLOPS rating (depending on the type of task). sorta like how todays video cards, Geforce 6800 for example has 4 times the transister count than a pentium 4 CPU, but its very specialized in its function. as far as the article from MS comparing the the general purpose processing power, i totally agree with you. as far as video games, and most media related tasks, PS3 is much more superior.
Last edited by terryw; May 15, 2006 at 10:25 PM.
so you're basically saying that general processing isnt as important as the quantity of flops per sec right? Im just failing to see as you have what microsoft was trying to prove in that boring presentation.
http://www.blachford.info/computer/Cell/Cell0_v2.html
this is IMO the best article about the cell
this is IMO the best article about the cell
I believe the 16TFLOP number for thePS3 is based on single precision numbers... supercomputer rating are based on double precison nubers ... totally different animal. Anybody that has done some programming using both data types would know from performance differences.
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