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How will Bulldozer modules be seen as by the OS and programs

post #1 of 13
Thread Starter 
Will each module be seen as a single core or will each integer execution unit be seen as a core.

So basically, will it be 16 cores or 8 cores when looking at something like CPU-z or for single-threaded applications
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post #2 of 13
Nobody knows at the moment. if i had to guess, it whould be like HT from intel, and would show up as 8 or 16 cores.

Now, that isnt official, that's a guess.
post #3 of 13
8 Cores 8 threads
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post #4 of 13
No one really knows anything.. And its annoying..
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post #5 of 13
Quote:
Originally Posted by geoxile View Post
Will each module be seen as a single core or will each integer execution unit be seen as a core.

So basically, will it be 16 cores or 8 cores when looking at something like CPU-z or for single-threaded applications
From what I've read it will be either 2 modules (each module has 2 cores shared by one floating point unit) with 4 cores or 4 modules with 8 cores. So Windows Task Manager will show either 4 or 8 cores in the performance tab. This is AMD's answer to Intel's Hyperthreading except Bulldozer cores are real hardware unlike Intel's 2 threads per core. And this is also AMD's answer to Intel having superior Integer units since Core 2 came out. Bulldozer's integer performance should be considerably better than is current.

Also AMD de-emphasised the FPU's because floating point math is done much faster by the GPU or APU depending on the processor. I don't want an APU myself except for my media box because I want max performance and plan on having a video card installed. The best thing from AMD since Athlon 64!
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post #6 of 13
I have said this dozens of times. The Bulldozer Blog is full of references about how the OS and apps will view the processor. Modules will NOT be seen by the OS or the apps.

Cores will be seen by the OS and the apps, so a zambezi will be 8 cores. Because that is what it is.
post #7 of 13
Thread Starter 
So...what's the point of using the module terminology?
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post #8 of 13
Making processor's IPC much mure strong than Denebs/Thubans.

Essentially it's probably something like this:

.______ module
-FPU---{.............}-cache
''''''''''''''''''module


All that symbol filling is cos OCN won't let putting in plain spaces.
Edited by Artikbot - 1/16/11 at 12:33pm
   
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post #9 of 13
Thread Starter 
Btw, these cores will be capable of supporting multi-processing and multi-threading?
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post #10 of 13
Quote:
Originally Posted by geoxile View Post
So...what's the point of using the module terminology?
Because each CPU is built using Bulldozer "modules".

Basically the module's provide much easier scalability when you need to increase number of integer cores on the CPU. AMD has basically packaged the core section of the CPU up into modules, and numbers of the modules can then be added to a CPU to increase the integer core count as needed.

Think of the Bulldozer module like a lego block, they can now connect more of them together easier

The main thing ppl seem to get stuck on is the module/core relationship - just remember each "module" has 2 "cores".

Or to be more exact, a Zambezi CPU, will be made of multiple Bulldozer modules, and each Bulldozer module is made of 2 integer cores, each with their own integer scheduler and the "FlexFP" FPU that consists of dual 128bit FMACs, using a seperate FP scheduler
Edited by un-nefer - 1/16/11 at 7:21pm
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