derek/gem5

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Kaustav Goswami 937b829e8f configs,ext: Updated the gem5 SST Bridge to use SST 13.0.0

This change updates the gem5 SST Bridge to use SST 13.0.0. Changes
are made to replace SimpleMem class to StandardMem class as
SimpleMem will be deprecated in SST 14 and above. In addition, the
translator.hh is updated to translate more types of gem5 packets.
A new parameter `ports` was added on SST's side when invoking the
gem5 component which does not require recompiling the gem5
component whenever a new outgoing bridge is added in a gem5 config.

Change-Id: I45f0013bc35d088df0aa5a71951422cabab4d7f7
Signed-off-by: Kaustav Goswami <kggoswami@ucdavis.edu>

2023-10-10 14:16:29 -07:00

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Installing SST

The links to download SST source code are available at http://sst-simulator.org/SSTPages/SSTMainDownloads/. This guide is using the most recent SST version (13.0.0) as of September 2023. The following guide assumes $SST_CORE_HOME as the location where SST will be installed.

SST-Core

Downloading the SST-Core Source Code

wget https://github.com/sstsimulator/sst-core/releases/download/v13.0.0_Final/sstcore-13.0.0.tar.gz
tar xzf sstcore-13.0.0.tar.gz

Installing SST-Core

cd sstcore-13.0.0
./configure --prefix=$SST_CORE_HOME --with-python=/usr/bin/python3-config \
            --disable-mpi # optional, used when MPI is not available.
make all -j$(nproc)
make install

Update PATH,

export PATH=$SST_CORE_HOME/bin:$PATH

SST-Elements

Downloading the SST-Elements Source Code

wget https://github.com/sstsimulator/sst-elements/releases/download/v13.0.0_Final/sstelements-13.0.0.tar.gz
tar xzf sstelements-13.0.0.tar.gz

Installing SST-Elements

cd sst-elements-library-13.0.0
./configure --prefix=$SST_CORE_HOME --with-python=/usr/bin/python3-config \
            --with-sst-core=$SST_CORE_HOME
make all -j$(nproc)
make install

Adding PKG_CONFIG_PATH to .bashrc (so pkg-config can find SST .pc file),

echo "export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:$SST_CORE_HOME/lib/pkgconfig/" >> ~/.bashrc

Building gem5 library

At the root of the gem5 folder, you need to compile gem5 as a library. This varies dependent on which OS you are using. If you're using Linux, then execute the following:

scons build/RISCV/libgem5_opt.so -j $(nproc) --without-tcmalloc --duplicate-sources

In case you're using Mac, then type the following:

scons build/RISCV/libgem5_opt.dylib -j $(nproc) --without-tcmalloc --duplicate-sources

Note:

--without-tcmalloc is required to avoid a conflict with SST's malloc.
--duplicate-sources is required as the compilation of SST depends on sources to be present in the "build" directory.
The Mac version was tested on a Macbook Air with M2 processor.

Compiling the SST integration

Go to the SST directory in the gem5 repo.

cd ext/sst

Depending on your OS, you need to copy the correct Makefile.xxx file to Makefile.

cp Makefile.xxx Makefile    # linux or mac
make -j4

The make file is hardcoded to RISC-V. IN the case you wish to compile to ARM, edit the Makefile or pass ARCH=RISCV to ARCH=ARM while compiling.

Running an example simulation

See README.md

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