In the stat file however the IPC is not zero: system.switch_cpus.commit.count 3000001 # Number of instructions committed system.switch_cpus.ipc 3.187320 # IPC: Instructions Per Cycle
So which one should I believe? Is everything normal? On 11/22/11, Mahmood Naderan <[email protected]> wrote: > Hi, > I don't know what is wrong that the IPC is 0 in detail mode and no > instruction is committed. > > The command I used is: > > build/X86_SE/m5.opt configs/example/cmp.py --prog-interval=7000000 -F > 6000000 --maxinst 50000000 -d --caches --l2cache -b lbm > > The output in the fast forward mode looks normal: > > Switch at instruction count:6000000 > info: Entering event queue @ 0. Starting simulation... > warn: instruction 'fnstcw_Mw' unimplemented > warn: instruction 'fldcw_Mw' unimplemented > MAIN_printInfo: > warn: instruction 'emms' unimplemented > grid size : 100 x 100 x 130 = 1.30 * 10^6 Cells > nTimeSteps : 3000 > result file : reference.dat > action : nothing > simulation type: lid-driven cavity > obstacle file : <none> > > 7000000000: Event_28: system.cpu progress event, total committed:4093433, > progress insts committed: 4093433, IPC: 0.584776 > hack: be nice to actually delete the event here > > > > However in the detail simulation the IPC is 0 for 44M instructions. It > means nothing!! > > Switched CPUS @ tick 10268402000 > Changing memory mode to timing > switching cpus > **** REAL SIMULATION **** > info: Entering event queue @ 10268402000. Starting simulation... > 14000000000: Event_28: system.cpu progress event, total committed:6000000, > progress insts committed: 1906567, IPC: 0.272367 > 21000000000: Event_28: system.cpu progress event, total committed:6000000, > progress insts committed: 0, IPC: 0 > 28000000000: Event_28: system.cpu progress event, total committed:6000000, > progress insts committed: 0, IPC: 0 > 35000000000: Event_28: system.cpu progress event, total committed:6000000, > progress insts committed: 0, IPC: 0 > Exiting @ tick 41246130000 because a thread reached the max instruction > count > > > Is there any comment or idea to debug more to see what is happening? > Thanks, > -- > // Naderan *Mahmood; > -- -- // Naderan *Mahmood; _______________________________________________ gem5-users mailing list [email protected] http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
