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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Scumbria who wrote (59289)	5/22/1999 2:06:00 PM
From: Charles R	Read Replies (2) \| Respond to of 1572919

Scumbria, "The multi-threading can be largely managed by the compiler, and therefore does not require the high overhead of a multithreaded OS." Wouldn't this overhead be increasingly irrelevant as processor ASPs drop and performance increases assuming a scalable OS? "I don't see the verification of McKinley as being a big problem, in fact it will probably be easier than any of their x86 CPUs (including Merced.)" I should clarify/correct myself - what I meant was the challenge of tuning the compiler to a new CPU. i.e., not the function of the CPU itself but getting software to work on it. Would that change your response? Chuck

To: Scumbria who wrote (59289)	5/22/1999 5:09:00 PM
From: Gopher Broke	Read Replies (1) \| Respond to of 1572919

I am confused as to how EPIC helps multi-threading. All it does is help the hardware to perform better by putting the onus on the compiler to rearrange the instructions for better pipelining of a single execution instance. Multi-threading, as I understand the term, means different execution instances and I don't see how EPIC help here, except that making a single thread run faster obviously helps. I have not heard anyone suggest that the three co-packaged instructions could be associated with different threads. So servers will still be multithreading in the same way when running EPIC instructions.