Re: [Gems-users] Questions about MOESI_CMP_directory

[Enric Herrero <enricherrero@xxxxxxxx>]

We have seen that the PerfectCacheMemory in the L2
acts as a directory cache and avoids to store the
blocks in L2 that are in a L1. However since it's
perfect cache it does not seem to be designed to be
implemented in real systems. Does it?
Is it suposed to be fully associative?

Thank you

 --- Enric Herrero <enricherrero@xxxxxxxx> escribió:

> Hi,
> We are studying the MOESI_CMP_directory and we have
> some questions about it. 
> 
> Why must the L1 send the data to the L2 if it's not
> modified when it makes a replacement from Shared
> state?
> 
> Which functionallity does the action uu_profileMiss
> have in the  L2?
> 
> Why does the L2 consider local and non local L1
> caches and has different states for them?
> 
> Why does the L2 need a PerfectCacheMemory?
> 
> Thank you
> 
> Marco and Enric


		
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