gem5-dbc

A Declarative Benchmark Configuration Framework for architecture exploration with gem5.

Simulation Workflow

Prepare your local system

Specify local directories containing gem5-dbc source files and needed simulation artifacts

# Set the correct paths for your system
export G5DBC_SOURCE=$HOME/sources/gem5-dbc
export G5DBC_PREFIX=/opt/g5dbc

Prepare resources directory

To use gem5-dbc you need to first configure a directory $G5DBC_PREFIX containing different resources needed for configuring and running a full system simulation.

The compiled gem5 executable should be copied to $G5DBC_PREFIX/bin/gem5.bin.

cp  gem5/build/ARM/gem5.opt $G5DBC_PREFIX/bin/gem5.bin

The $G5DBC_SOURCE/share directory should be copied to $G5DBC_PREFIX/share.

cp -rv $G5DBC_SOURCE/share $G5DBC_PREFIX

The artifacts directory and corresponding index can be generated using the provided Packer templates, see artifacts/README.md.

After the build is finished, the created directory artifacts and file artifacts.yaml can be copied to $G5DBC_PREFIX/share/g5dbc.

The resulting directory structure of $G5DBC_PREFIX should be as follows

File	Description
$G5DBC_PREFIX/bin/gem5.bin	gem5 binary
$G5DBC_PREFIX/share/g5dbc/artifacts.yaml	Artifact index
$G5DBC_PREFIX/share/g5dbc/artifacts	Artifact directory
$G5DBC_PREFIX/share/g5dbc/benchmarks	Default benchmarks directory
$G5DBC_PREFIX/share/g5dbc/configs	Default configurations directory
$G5DBC_PREFIX/share/g5dbc/parser	Default parser regexps directory
$G5DBC_PREFIX/share/g5dbc/templates	Default templates directory

Benchmark generation

# Generate set of simple benchmark scripts for stream using example system-single.yaml configuration
$G5DBC_SOURCE/src/main.py --path-prefix $G5DBC_PREFIX --benchmark-mod stream.py --benchmark-cfg system-single.yaml  --generate

Benchmark results evaluation

# Parse results to json
$G5DBC_SOURCE/main.py --path-prefix $G5DBC_PREFIX --benchmark-mod stream.py  --parse