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To: Tenchusatsu who wrote (28691)2/15/2001 5:53:52 PM
From: ScumbriaRead Replies (2) | Respond to of 275872
 
Ten,

Applications have not been partitioned properly for MP.

Graphics and video apps offer all kinds of coarse grained parallelism, and if AMD gets CMP going first, the other company may be in deep doo-doo.

Scumbria



To: Tenchusatsu who wrote (28691)2/15/2001 6:23:02 PM
From: Gopher BrokeRespond to of 275872
 
Tench,

Just try writing a conferencing app in Java with a G.723 audio encoder, an H.263 video encoder, the T.128 app sharing data compression functions. The point is that one processor is fine for one function, but when it comes to complex applications they really are not just one function. They are easily broken into threads that would naturally run on separate processors.

And that is without the perennial "futures" like a decent speech to text for taking meeting minutes, that just can't be done reliably on current technology.

The argument is always you don't need much CPU to run Word. Well Word will go the way of the typewriter sooner then some people think. In the same way as kids will soon be asking their parents "you used to chop down trees, mash them up and spray ink on the pulp"?

Excuse my ranting, it is not directed at you personally. I spend half my time fighting the limitations of "current" office hardware (remember we have to take a reasonable lowest common denominator to make a software product marketable) and it is annoying when people argue that there is no need for more power. Software is definitely limited by hardware. When 1GHz is an acceptable design goal for software developers then it will be all used up, believe me.



To: Tenchusatsu who wrote (28691)2/15/2001 6:43:59 PM
From: EricRRRespond to of 275872
 
Why do you think dual processor systems don't demonstrate close to 200% of the performance of single processor systems at the same speed?

If the working set of the app fits in the cache, a dual system can actually show a greater than doubling speedup.