On 6/14/2023 2:32 AM, Derek Christ via gem5-users wrote:
Hello,
maybe I have missed something in the official docs, but I'm not sure how to run multiple simulations
with different parameters concurrently to speed up the process.
What I have done is I created a Python script that sets environment variables and then kicks-off
gem5 which in turn runs another Python script that reads those environment variables to configure
the simulation.
But I'm sure there has to be a better way?
I think it might be easier if it would be possible to run gem5 purely with Python (without the gem5
executable) because then it would be easy to pass custom parameters to the gem5 configuration.
Is there something that I missed?
Thanks
Best
Derek
I use scripts that setup environment variables, command line parameters, and a
python
file with python parameter settings. The latter is placed in a directory
unique to
the run.
It happens that my scripts are shell scripts, but with varying degrees of pain,
other
scripting languages, or even hard coding in C or something, would work. I just
use
what I am skilled with.
You *must* have the gem4 executable, however. The bulk of the simulation is
run with
that (optimizing compiled) C++ code. It implements the actual modules as well
as the
event driven simulation part. Python is used mostly for configuring the
simulation
before the event loop is kicked off. If the simulator were written entirely in
python
it would be much slower.
HTH - Eliot Moss
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