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To: fyodor_ who wrote (87482)	8/22/2002 7:53:02 PM
From: pgerassi	Respond to of 275872

Dear Fyo: The amount of time required to make a task run fast enough on Itanium to make it quicker than a simple recompile on any other x86 platform or 64 bit RISC, is enough to completely redesign the task for clustering. All IBM Power4 systems are clusters. All Sun superservers are clusters. Most business tasks can easily be done by a cluster. Oracle's RDBMS, IBM's DB2, Informix or Sybase can all be run as multiple threads on a single CPU or spread to multiple CPUs in a NUMA cluster. The application programs run multiple programs that communicate to the network to the DB engine daemons. These programs do not need to be on the same CPU as the DBMS is used to provide the synchronization. I have modified and/or designed many such applications and I can tell you that this is typical usage pattern of these systems. And what of the case where a server runs multiple applications? You run many applications on the mainframe or main server. Aremn't you saying that a company runs AP, AR, GL, PR, IV, FA, MRP, ERP, CAD, CAM, SH and all the rest as one massive single program? That is not how these are run. Those applications have thousands of programs and a good percentage of those are running at the same time on the server. These systems handle thousands of simultaneous users (not like Windows that only allows one user per box). Now, how many applications do you use and how do you think they are built? Most VAR based software is quite suited to NUMA clusters else they would not run on Sun, IBM, DEC/Compaq/HP and all of the other large servers. Pete