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[doc] Issue in "AMD EPYC 9004 Series Processor architecture" #361

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TheGOro opened this issue Feb 6, 2023 · 2 comments
Open

[doc] Issue in "AMD EPYC 9004 Series Processor architecture" #361

TheGOro opened this issue Feb 6, 2023 · 2 comments
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@TheGOro
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TheGOro commented Feb 6, 2023

AMD EPYC 9004 Series Processor architecture:

https://documentation.suse.com/sbp/server-linux/single-html/SBP-AMD-EPYC-4-SLES15SP4/#sec-epyc-architecture

A 96-core 4th Generation AMD EPYC Processor socket therefore consists of 12 CCDs consisting of 8 CCXs or 96 cores in total (192 threads with SMP enabled) with one additional IO die for 9 dies in total.

This sentence is incorrect as it is previously established that this family (and particular models) of processors has 1 Core-Complex (CCX) per CCD. Thus the 8 here are not CCXs but actual cores. Something like "12 CCDs, each containing 8 cores".
The "9 dies in total" also doesn't make much sense, as in this case the package has 12 CCDs and a single I/O die.

Best regards,
GOro

@chabowski
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@gormanm Hi Mel, would you mind having a quick look and confirm? Thanks very much!

@chabowski chabowski added the bug label Feb 28, 2023
@chabowski
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@gormanm could you please have a look? thank you!

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