There's a simconfig option -fast-fwd-checkpoint that should accomplish what you're looking to do.
The way things work, because you put stop_insns at 200m and fast forward at 250m, the stop gets hit first. You would want to do fast-forward 250m and stop_insns 450m On Tue, Sep 8, 2015 at 9:41 PM, 陳芷涵 <[email protected]> wrote: > Hello, > I'm new to MARSS. I want to know if I can enter the simulation mode after > the caches pass cold start phase to prevent the initialization phase from > affecting the results? At first, I use -stopinsns 300m to stop simulation > after 300M instructions. However, I found that 300M instructions may not be > enough. Is -fast-fwd-insns one way to solve this problem? > > I've googled and tried many times about fast-fowd-insns but it still > doesn't work. First, I boot up the VM and use ./create_checkpoint to create > the checkpoint. > ./create_checkpoint bzip2_chk ; <benchmark_exe>; ./stop_sim; > Then, I create simconfig file which is shown as follows: > > -machine single_core > -fast-forward-insns 250m > -stopinsns 200m > > The simulation does not stop at the point it should be stopped. Following > messages are printed again and again in ptlsim.log > > Stopped after 313863665 cycles, 200000001 instructions and 1134 seconds of > sim time (cycle/sec: 276775 Hz, insns/sec: 176366, insns/cyc: > 0.6372193512747008) > Total Tags: single_core,ic5.theda.cad,2015-09-09,total > Stats Summary: > user.base_machine.ooo_0_0.thread0.commit.ipc = 1.05659 > kernel.base_machine.ooo_0_0.thread0.commit.ipc = 0.147432 > total.base_machine.ooo_0_0.thread0.commit.ipc = 0.637219 > Stopping simulation loop at specified limits (313863666 cycles, 200000001 > commits) > > Could you please tell me in which step I am wrong or what could cause this > kind of problem. > Moreover, how can I know if the fast-forwarding is successful or not. > > Thanks for reading this long problem description. > I would be very appreciate if you could help me with this problem. > Thank you very much! > > Regards, > Amy > > > > _______________________________________________ > http://www.marss86.org > Marss86-Devel mailing list > [email protected] > https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel > >
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