[gem5-users] Re: Gem5 in FS mode

[husin alhaj ahmade via gem5-users]

Your issue is not related to Gem5 ever. Try to mount the disk image of
Linux and then copy your binaries to it, umount disk image and start the
Gem5 simulation session.

On Thu, Mar 4, 2021 at 9:08 AM VAIDYA ROHINI VILAS via gem5-users <
gem5-users@gem5.org> wrote:

> Hello,
> I am trying to run Gem5 in FS mode.
> I want to run my own binary file in FS mode of gem5
> For that,I think I need to mount disk image to my compiled binary file.
> I am not aware about how to mount the disk image to my compiled binary
> file.
> Will you please guide me regarding this.If there is any document regarding
> this please share.
> Thank you.
> Rohini vaidya.
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[gem5-users] Gem5 in FS mode

[VAIDYA ROHINI VILAS via gem5-users]

Hello,
I am trying to run Gem5 in FS mode.
I want to run my own binary file in FS mode of gem5
For that,I think I need to mount disk image to my compiled binary file.
I am not aware about how to mount the disk image to my compiled binary file.
Will you please guide me regarding this.If there is any document regarding this 
please share.
Thank you.
Rohini vaidya.
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[gem5-users] Re: CleanEvict packets in gem5

[Wenqi Yin via gem5-users]

Hi Aritra, 

The CleanEvict packet don’t have data so it cannot do write in the cache. As 
Nikos said, the main purpose is to update the snoop filter. So when cache see a 
CleanEvict pkt, it either pass that pkt on to downstream when it misses the 
cache or stop the pkt if it hits. A side effect is when a cache see a 
CleanEvict and has the blk in its write queue, it indicates that blk don’t 
exist in peer caches so the wbpkt can clear the BlockCached bit if it’s 
original there. You can find this logic in cache/base.cc:1 
078~1093 under current release. 

Wenqi



> On Mar 3, 2021, at 13:37, bagchi95aritra--- via gem5-users 
>  wrote:
> 
> Hi Nikos, 
> 
> Thanks for your response. If possible, could you also indicate what gem5 
> cache does when it sees these CleanEvicts? If they are, as you said, write 
> backs originated for clean (not dirty) cache lines, then the cache shouldn’t 
> write the data. But then, what does it do? 
> 
> Thanks and regards,
> Aritra
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[gem5-users] Re: NoC Compression

[Bharadwaj, Srikant via gem5-users]

Hi Navneet,
It depends on what your implementation of the compression techniques. In 
general, you can achieve some of types of techniques by using Garnet 3.0 / 
HeteroGarnet.
Some more details on what you want to design would be helpful.

Srikant

From: NAVNEET KUMAR via gem5-users 
Sent: Wednesday, March 3, 2021 10:33 AM
To: gem5-users@gem5.org
Cc: NAVNEET KUMAR 
Subject: [gem5-users] NoC Compression

[CAUTION: External Email]
Hello gem5 community,
I have been wondering for a while that how can i implement the NoC compression 
in gem5?
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[gem5-users] Re: CleanEvict packets in gem5

[bagchi95aritra--- via gem5-users]

Hi Nikos, 

Thanks for your response. If possible, could you also indicate what gem5 cache 
does when it sees these CleanEvicts? If they are, as you said, write backs 
originated for clean (not dirty) cache lines, then the cache shouldn’t write 
the data. But then, what does it do? 

Thanks and regards,
Aritra
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[gem5-users] NoC Compression

[NAVNEET KUMAR via gem5-users]

Hello gem5 community,
I have been wondering for a while that how can i implement the NoC compression 
in gem5?
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[gem5-users] Re: CleanEvict packets in gem5

[Nikos Nikoleris via gem5-users]

Hi Aritra,

CleanEvict packets are generated by caches which have the parameter
writeback_clean set to false whenever there is an eviction of a clean
block. This is primarily to inform the snoop filter that a cache has a
evicted a block.

Hope this helps,

Nikos


On 02/03/2021 12:24, bagchi95aritra--- via gem5-users wrote:

Hi all,

I observe a lot of packets (requests) of type “CleanEvict” on running some 
benchmarks on gem5. Surprisingly gem5’s default stat doesn’t seem to count 
them, and so I count the number of them by creating my own stat variables in 
gem5. I use classic memory model. And I see those CleanEvicts in the L3 (LLC. 
Could someone help me understand what CleanEvicts actually are, how are they 
generated in gem5 cache?

Thanks and regards,
Aritra
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[gem5-users] Re: CleanEvict packets in gem5

[bagchi95aritra--- via gem5-users]

Hi, I would highly appreciate if someone in this group can tell me about 
CleanEvicts. 

Regards,
Aritra
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