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Running GEM5 with Generic Checkpoints of SPECCPU 2006/2017

We need three repositories:

Clone and compile NEMU

git clone [email protected]:RISCVERS/NEMU.git -b cpp-gem5

# make NEMU
cd NEMU
make ISA=riscv64 XIANGSHAN=1 SHARE=1 -j x

# make GCPT restorer
cd resource/gcpt_restore
make

Clone GEM5

git clone [email protected]:RISCVERS/GEM5-GCPT.git -b omegaflow

Specify the path of NEMU difftest.so: change 'REF_SO': '\\\"/home51/zyy/projects/NEMU/build/riscv64-nemu-interpreter-so\\\"' to 'REF_SO': '\\\"/path/to/NEMU/build/riscv64-nemu-interpreter-so\\\"'

Compile GEM5 (scons3 is required):

scons build/RISCV/gem5.opt -j x

If any header file or library is not found, google it and install.

Configure local environments for BatchTemplate

  • Open common/local_config.py.

  • Specify the location of simpoints17.json and simpoints06.json. They determine which simulation points will be simulated. You can copy them for machine-151.

  • Open gem5tasks/restore_gcpt.py

  • set CurConf = tc.FullWindowO3Config. tc.FullWindowO3Config is a typical Out-of-Order core with full window scheduler

  • set ver = '17' or '06', which is SPECCPU version

  • set num_threads = x to control the number of GEM5 threads

  • set gem5_base = where you cloned gem5

  • set top_output_dir = where you want to put experimental results

  • set data_dir = where generic checkpoints generated by NEMU resides. You can copy it for machine-151.

  • set --gcpt-restorer to the location of GCPT restorer (which is inside NEMU/resource).

run BatchTemplate

cd root of BatchTemplate
export PYTHONPATH=`pwd`:$PYTHONPATH
python3 ./gem5tasks/restore_gcpt.py

You can also choose only one simulation points like:

python3 ./gem5tasks/restore_gcpt.py -T imagick/1793100000000