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


To: A. A. LaFountain III who wrote (52630)3/15/1999 10:21:00 AM
From: Elmer  Respond to of 1578303
 
Re: "1) SSM doesn't compete against the Xeon. In fact, it could eventually support it. It does compete with Intel's shared-bus architectures (450NX chip set for 4-way and Intel's Corollary unit's Profusion product for the 8-way market). With a bus-oriented approach, there would be a need for arbitration and the greater the load, the greater the arbitration. If I understand it correctly, this leads to a scalability question, which Profusion will address by use of a second bus."

All P6 generation processors have a private bus between the processors for arbitration etc. It doesn't require any FSB cycles. There is FSB arbitration with the bus controller when a snoop takes place but not between the processors.

Re: "2) The network approach (SSM) obviates the need for arbitration due to the fundamental difference in architecture. Scalability is constant."

There would still be a need for arbitration when a snoop is required, just like the P6 bus.

EP



To: A. A. LaFountain III who wrote (52630)3/15/1999 11:10:00 AM
From: DRBES  Respond to of 1578303
 
re: "Pretty interesting, don't you think? - Tad LaFountain"

Yes, Tad yes.

Regards,

DARBES



To: A. A. LaFountain III who wrote (52630)3/15/1999 2:19:00 PM
From: Petz  Read Replies (1) | Respond to of 1578303
 
Tad, re:SSM, I actually have a patent on an 8x8 crossbar switch for use in multiprocessor systems. patents.ibm.com
I notice that it is currently referenced by 34 other patents, including 1 from Intel ("US5604878: Method and apparatus for avoiding writeback conflicts between execution units sharing a common writeback path", granted 2/18/97", patents.ibm.com

Unfortunately, Intel doesn't have to pay any royalties to me or anyone else; Oryx went belly up and no one acquired the patent.

Petz



To: A. A. LaFountain III who wrote (52630)3/15/1999 2:26:00 PM
From: gbh  Read Replies (1) | Respond to of 1578303
 
so they sell for $500 each, while cost per part averages $200;

Tad, where do you get the $200/part cost? This seems very higher to me. Microprocessor Report, the best source I know for this type of info, shows a K6-3 manufacturing cost of $45. The K7 will be roughly the same die size, therefore roughly the same cost. Of course the Slot card that the K7 lives on will add cost, but not $150.

Gary




To: A. A. LaFountain III who wrote (52630)3/16/1999 2:21:00 PM
From: DRBES  Respond to of 1578303
 
I would like to refer you to my post # 52682 :

Message 8346000

I do not claim this is a likelihood but it drops out of the numbers that I am able to generate. Remember, iNTEL is encumbered by a strong case of NIH and evolutionary legacy technology; while AMD has started out with a clean sheet of paper and some non-ignorable encumbrances as well. I am looking at a, less than likely, best possible case scenario.

ANY THOUGHTS? (that you can share here)

Regards,

DARBES