Hi,

I am trying to add support for saving cache state during checkpointing. I
have been able to dump cache contents (all the blocks) when a checkpoint is
created. However, when I try to restore from the checkpoint the simulation
immediately stops with following message:

**** REAL SIMULATION ****
info: Entering event queue @ 2281941320500.  Starting simulation...
hack: be nice to actually delete the event here
Exiting @ tick 2281941334000 because all cpus halted


I am running checkpointed PARSEC benchmarks and I am using atomic mode for
running simulations, with same cpu and cache configuration, before and after
checkpoint.

Here are the commands i use for running simulations:

build/ALPHA_FS/gem5.opt ./configs/example/fs.py --caches --l2cache
--script=../../run_scripts/ckpts/blackscholes_1c_simsmall_ckpts.rcS -n 1

build/ALPHA_FS/gem5.opt ./configs/example/fs.py --caches --l2cache
--checkpoint-restore=1 -n 1

Does anyone have a clue why this might be happening ?


Thanks,
-Abhishek

Graduate Student
Computer Science
University of Virginia

---------------------------------------------------------------------------------------------------------------------
simplicity is the ultimate sophistication
-Leonardo da Vinci
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