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To: Petz who wrote (63046)11/8/2001 4:28:44 PM
From: TenchusatsuRead Replies (1) | Respond to of 275872
 
Petz, <The over 4x increase in register bytes can be available for register renaming which would increase the IPC>

No they can't, because it doesn't work that way.

<especially if SMT is used>

This doesn't count. With SMT, you'd have two register files and two reorder buffers, one for each of the threads. A thread can't utilize the unused registers (or reorder buffer entries) in the other thread.

Tenchusatsu


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