I added rootdelay to menu.lst (and I think in grub1 you don't have to do anything else, right?)
I'm using the old parsec images with a reasonably ancient ubuntu. Should I be using something more recent? On Wed, Mar 13, 2013 at 11:13 AM, avadh patel <[email protected]> wrote: > > > > On Tue, Mar 12, 2013 at 1:19 PM, Paul Rosenfeld <[email protected]>wrote: > >> Hello Everyone, >> >> It's been a while but I'm starting to use MARSSx86 for simulations again. >> I've been trying to run 16 core simulations and am finding that the boot >> time is very long (~5 hours to make a checkpoint). This makes it quite >> frustrating when I accidentally set the wrong parameters inside the >> workload or run the wrong workload or any number of other mistakes I tend >> to make. >> >> Booting 16 core should not take that long. Did you try adding > 'rootdelay' option to kernel command line? It significantly improves kernel > boot time in QEMU for large number of cores. > > - Avadh > > >> So I was thinking -- what if I made a post boot but pre-simulation-switch >> checkpoint (i.e., checkpoint but stay in emulation mode). That way, the >> create_checkpoints.py script could just launch the system from the >> post-boot snapshot and proceed to launch the workloads which would have the >> PTL calls that would then make the actual simulation checkpoints. Not only >> would that reduce the time it took to create a lot of checkpoints, but also >> if I screwed up a checkpoint, I could just delete it, boot the post-boot >> snapshot, tweak the workload, and re-checkpoint the simulation. >> >> I think marss checkpoints piggyback on qemu's snapshot capabilities, but >> is there some downside to this approach here that I'm missing? >> >> Thanks, >> Paul >> >> _______________________________________________ >> http://www.marss86.org >> Marss86-Devel mailing list >> [email protected] >> https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel >> >> >
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