Re: [Gems-users] Issues with MSI_...L2-sim

[Polina Dudnik <pdudnik@xxxxxxxxx>]

Hi Shoaib,

I am actually confused about where you added the counter. I would add
it in structure(Entry). I am also not entirely clear on why you want
to clear the counter. If the block gets deallocated, it may be brought
back again, so you will start counting from zero again and will not
get the total number of references.

Polina

On Tue, Apr 13, 2010 at 4:08 AM, Muhammad Shoaib <shoaibbinalt@xxxxxxxx> wrote:
>
> Hi List,
>
>
> I am trying to keep track of the number of times a address is referenced  in L2 cache.  For this I have added a "counter" entry in the Cache structure (in MSI_MOSI_CMP_dierctory_L2cache.sm) & its value gets incremented on each reference
>
> ================================================================
>
> L2cacheMemory[addr].counter:=L2cacheMemory[addr].counter+1;  // called in whenever a request comes either from private L1 or from other nodes
> =================================================================
>
> I also want to clear this counter value when a line gets deallocated, for this I reset the counter on the following action
>
> ==============================================================================
>
> action(rr_deallocateL2CacheBlock, "\r", desc="Deallocate L2 cache block.  Sets the cache to not present, allowing a replacement in parallel with a fetch.") {
>
> L2cacheMemory[address].counter:=0;
>
>    L2cacheMemory.deallocate(address);
>  }
> ==============================================================================
>
>
> But the problem is the counter never gets cleared it is always incrementing, even though the line gets deallocated!!!
>
>
> Any idea why this is happening or I am doing something wrong???
>
> Shoaib
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