Hi,
I recently updated to the most recent version of M5(-dev). I use
ALPHA_FS mode and checkpointing. After updating (and applying my
changes), I am not able to restore from checkpoints anymore. If I use
the checkpoint-restore options, it just starts simulating at cycle 0,
without restoring.
A closer look showed me the following:
The checkpoint directory is set in configs/common/Simulation.py. I
checked that and it's OK.
Then m5.instantiate(checkpoint_dir) is called, which is in
src/python/m5/simulate.py. However, in that function, the argument
(ckpt_dir) is nowhere used. It just states:
# Restore checkpoint (if any)
for obj in root.descendants(): obj.initState()
So why is ckpt_dir constructed, while it is not used later on? And how
are checkpoints restored using the command above?
Since I'm not able to recover from checkpoints, something must be
wrong. It used to work with a version of M5 just before July 2010, but
it seems a lot has changed since then regarding checkpointing.
Has someone seen similar problems? Or better: does someone have solutions?
Thanks,
Stijn
--
dr. ir. Stijn Eyerman
Ghent University
Electronics and Information Systems Department
Sint-Pietersnieuwstraat 41
9000 Gent
Belgium
t: +32 9 264 3456
f: +32 9 264 3594
e: [email protected]
w: http://www.elis.UGent.be/~seyerman/
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