informal so BD can do 2*4 and K10 just 3 macroops?
informal so BD can do 2*4 and K10 just 3 macroops?
BD integer scheduler receives the 4 macro ops but the very execution units work on micro ops sent by that same scheduler. Execution units can only work with micro ops. Back end's job is to retire the macro ops that schedulers received. Per clock and per AMD (per AMD"s Mike Bulter) each core can retire 4 macro ops.Originally Posted by TESKATLIPOKA
So just to confirm, that means a single module can retire 8 macro ops per clock cycle then? Because a module is supposed to be two cores. Which means top level bulldozer can retire 32 macro ops per clock cycle?
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Yes and no. A module can potentially retire up to 8 macro ops per cycle when executing two threads and tracking two contexts. If only executing one thread it can potentially retire only 4.
This is the strongest argument that it is an 8 core CPU because when running 8 threads the total potential retirement will be 4 issue x 8
Last edited by JumpingJack; 08-26-2011 at 06:43 PM.
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What kind of car I drove What kind of house I lived in
How much money I had in the bank Nor what my cloths looked like.... But The world may be a little better Because, I was important In the life of a child.
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