Hi, I'm generating simpoint checkpoints of spec benchmarks by running the
programs through with the atomic CPU. One of them was interrupted in the middle
and so I want to restore from the last generated checkpoint and continue
generating the rest of the checkpoints from there, rather than starting from
scratch. I have a couple questions about this process:
Will the simpoint values (the intervals/nuumber of instructions into the
program) still be valid when restoring from a checkpoint, or will I need to
adjust them? I.e., will gem5 interpret simpoint intervals relative to the
instruction count the checkpoint was taken at, or from 0? If the latter, I'll
need to readjust the simpoint values relative to the instruction count the
checkpoint starts at (so if I checkpointed at 100 intervals and , I need to
subtract 100 from all further simpoint values).
Second, how do I prevent gem5 from exiting simulation after a set number of
instructions when restoring from a simpoint checkpoint? I want to run the
entire program (or, up to the last simpoint), but currently Gem5 will only
execute a certain number of instructions and then stop. I'm currently trying to
restore the checkpoint not as a simpoint checkpoint, but a regular checkpoint,
so will this work to keep the simulation running the entire length?
If anyone can answer either of these it would be a big help, thanks!
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