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To: Petz who wrote (63074)	11/8/2001 5:09:17 PM
From: Tenchusatsu	Read Replies (1) \| Respond to of 275872

Petz, <You don't need to have independent register files for each thread when doing SMT. Each thread just grabs availalbe extra registers when it needs them, acquiring them from a pool of extra registers.> Once again, it doesn't work that way. The reorder buffer already serves this purpose for single threaded processors. And for SMT, the execution resources are shared, not the registers. Because of reorder buffers, the benefits of adding additional registers is mitigated. There is still a small benefit, especially with a register-poor architecture like x86, but you need to recompile your apps to take advantage of it. Tenchusatsu