Thanks Hansika, for the detailed explanation. I'll try this now and let you
know how it goes.

Thanks & Regards,
Advani

On Thu, Aug 10, 2023, 10:49 Hansika Weerasena via gem5-users <
gem5-users@gem5.org> wrote:

> Hi Advani,
>
>
>
> I needed to run the parsec with garnet in Full System mode while ago.
> Since new gem5 standard library (
> https://www.gem5.org/documentation/gem5-stdlib/overview) does not support
> garnet at the moment, I had to go with fs.py (which is deprecated in
> current version of gem5). Here are the steps you need to take to run parsec
> in FS mode with garnet interconnection.
>
>
>
>    1. Create disk image with parsec benchmarks or use one from gem5
>    resources (https://resources.gem5.org/).
>    2. Download a compatible raw linux kernel from gem5 resources.
>    3. If you need to fasten up the FS mode simulation you need to bootup
>    linux with KVMCPU to fast-forward your simulation and then switch to
>    detailed CPU model when gem5 specific annotation for start of Region of
>    Interest (*m5_roi_begin()*) is found,
>       - Your host machine should support KVM virtualization for this and
>       you need to setup KVM. For KVM setup you can use this tutorial  (
>       https://www.gem5.org/documentation/general_docs/using_kvm/) or any
>       other independent tutorial for KVM setup.
>       - Example run with KVM and parsec using gem5 standard library can
>       be found here (
>       
> https://github.com/hansikaweerasena/gem5-n/blob/kvm-fs/configs/example/gem5_library/x86-parsec-benchmarks.py),
>       but this cannot be used with garnet without extending gem5 standard 
> library
>       to support garnet.
>    4. Create run script for readfile_contents to run parsec benchmark
>    after linux bootup.
>    5. Run fs.py with the configuration you need.
>
>
>
> I was able to do these steps and run parsec benchmark with garnet in full
> system mode upto 64 cores. Following are the links and scripts I used, you
> may need to change them according to your requirement.
>
>
>
>    1. I used the prebuilt X86 parsec disk image from gem5 resources :
>    https://resources.gem5.org/resources/x86-parsec?version=1.0.0
>    2. For linux kernel I used vmlinux-4.4.186
>    3. Example modification I done to support the KVM switch on ROI start
>    can be found here (
>    
> https://github.com/hansikaweerasena/gem5-n/blob/kvm-fs/configs/common/Simulation.py).
>    You can use as it is or modify as you need.
>    4. Example rcs script can be found here :
>    https://github.com/hansikaweerasena/gem5-n/blob/kvm-fs/scripts/parsec.rcS
>    5. Finally, this is an example command to run parsec on FS mode with
>    garnet.
>
>
>
> *./build/X86/gem5.opt configs/example/fs.py --disk-image=dist/parsec.img
> --kernel=dist/vmlinux-4.4.186 --num-cpus=4 --num-dirs=4
> --cpu-type=X86KvmCPU --cpu-clock=2GHz --caches --l1d_size=16kB
> --l1i_size=16kB --l2cache --num-l2cache=4 --mem-type=SimpleMemory
> --mem-size=3GB --ruby --network=garnet --topology=Mesh_XY --mesh-rows=2
> --script=scripts/parsec.rcS*
>
>
>
> I think this may help you to proceed, feel free to ask any questions if
> you’re not clear of the steps.
>
>
>
> Regards,
>
> Hansika Weerasena
>
> Research Assistant,
>
> University of Florida
>
>
>
>
>
> *From: *Advani Chacha via gem5-users <gem5-users@gem5.org>
> *Date: *Wednesday, August 9, 2023 at 3:44 PM
> *To: *gem5-users@gem5.org <gem5-users@gem5.org>
> *Cc: *Advani Chacha <advanicha...@gmail.com>
> *Subject: *[gem5-users] Running garnet on gem5.
>
> *[External Email]*
>
> Hi everyone,
>
> I'm trying to use 'garnet' network in gem5 and use Parsec as the
> benchmarking tool. I've build the gem5 for X86 and also done all the steps
> for parsec-benchmark as mentioned in the tutorial at
> https://gem5.org/documentation/gem5art/tutorials/parsec-tutorial
>
> I want to do a full-system simulation. The issue is that, now I don't know
> how to proceed further.
>
>
>
> I tried to search on google, but either the tutorials are for the garnet
> version 2.0 or they are for synthetic traffic. Some of the sites are not
> live, so when using the wayback version I'm not able to download the files
> that they've suggested as part of the tutorial.
>
>
>
> Any help would be appreciated.
>
>
>
> Regards,
>
> Advani
>
>
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