Hi Prathap,
Definitely. The gem5 memory system let’s you build any tree-topology you like,
even unbalanced (L2 for one core, and no L2 for another etc, 2 core for one L2
and a single core for the next). Just instantiate an L2 per core, connect it
with a CoherentBus to the L1s of that core, and then use a CoherentBus on the
memory-side of the L2 to “merge” the tree into the L3 (or use split L3’s as
well).
If you’ve got pydot installed gem5 generates a PDF/SVG showing the system
layout to visually ensure you’ve accomplished what you intended.
Andreas
From: Prathap Kolakkampadath <kvprat...@gmail.com<mailto:kvprat...@gmail.com>>
Date: Thursday, 28 August 2014 17:47
To: Andreas Hansson <andreas.hans...@arm.com<mailto:andreas.hans...@arm.com>>
Cc: gem5 users mailing list <gem5-users@gem5.org<mailto:gem5-users@gem5.org>>
Subject: Re: [gem5-users] How to add shared nonblocking L3 cache in gem5?
Thanks Andreas. I have one more question regarding cache. Is it posible to
create a system with multiple L2 caches each private to a specific core?
On Wed, Aug 27, 2014 at 2:51 AM, Andreas Hansson
<andreas.hans...@arm.com<mailto:andreas.hans...@arm.com>> wrote:
Hi Prathap,
You can easily create a subclass of the BaseCache and give it suitable
parameters for an L3. This should be fairly straight forward and also easy to
instantiate in the Python scripts (e.g. fs.py)
Andreas
From: Prathap Kolakkampadath via gem5-users
<gem5-users@gem5.org<mailto:gem5-users@gem5.org>>
Reply-To: Prathap Kolakkampadath
<kvprat...@gmail.com<mailto:kvprat...@gmail.com>>, gem5 users mailing list
<gem5-users@gem5.org<mailto:gem5-users@gem5.org>>
Date: Wednesday, 27 August 2014 05:25
To: gem5 users mailing list <gem5-users@gem5.org<mailto:gem5-users@gem5.org>>
Subject: [gem5-users] How to add shared nonblocking L3 cache in gem5?
Hi Users,
I am new to gem5 and I want to add nonblacking shared Last level cache(L3). I
could see L3 cache options in Options.py with default values set. However there
is no entry for L3 in Caches.py and CacheConfig.py.
So extending Cache.py and CacheConfig.py would be enough to create L3 cache?
Thanks,
Prathap
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