Re: [Gems-users] Cache block replacement policy

[Alaa Alameldeen <alaa@xxxxxxxxxxx>]

Arrvindh,

Your coherence protocol should be using one of the CacheMemory classes 
in ruby/system/. You should check your protocol cache controller file to 
determine which class you are using. For example, MOSI_SMP_bcast uses 
the CacheMemory object (ruby/system/CacheMemory.h) since it defines its 
caches in the MOSI_SMP_bcast-cache.sm file as:
  CacheMemory L2cacheMemory ...

To modify the default replacement algorithm, you should change some 
functions in the correct CacheMemory class definition (e.g., 
cacheProbe(), setMRU(), allocate()), or you can define your own 
CacheMemory class and use it.
-Alaa

arrvindh shriraman wrote:
> Hi,
>
> How can I change the default cache block replacement policy ?
> Are there any fixed policies provided in Ruby. I am assuming current 
> policy is pseudo-LRU. I want to assign higher priority to some lines for 
> eg: Lines in 'M' get higher priority than OESI.
> Thanks
>
> Arrvindh Shriraman
> Conputer Science Department
> University of Rochester