Hi Thom, I do not understand your underlying goal here. When you say you want to remove the contention at the cache level, what do you mean? And how on earth would making the caches really small help in any way?
Have you ensures that the specific command line you use works with the default cache sizes? If you really want to remove the cached I would suggest to stick to the previous approach of actually not instantiating them and chase down the reason why that is not working. Andreas On 24/11/2014 22:20, "Thom Popovici via gem5-users" <[email protected]> wrote: >Hello again. > >So I have tried making the caches as small as possible, therefore trying >to >remove the contention at the cache level. The command line that i hit was: >./build/X86/gem5.opt -d ./test1 ./configs/example/fs.py -n 2 --cpu- >type=detailed --caches --l1d_size=128B --l1i_size=128B --l1d_assoc=1 -- >l1i_assoc=1 --cacheline_size=64 --mem-type=ddr3_1600_x64 -- >script=./runbs2.rcS (where runbs2.rcS runs blackscholes algorithm). > >So the simulator started nicely. The execution started till a certain >point >when it froze. I tried m5term into it, nothing. I end up with this: >PARSEC Benchmark Suite Version 2.1 >[HOOKS] PARSEC Hooks Version 1.2 >Num of Options: 16384 >Num of Runs: 100 >Size o[tpopovici@thompopovici test1]$ > >It has been 24 hours and no change. > >I also tried the full system simulation with the defaults cache sizes: >./build/X86/gem5.opt -d ./test1 ./configs/example/fs.py -n 2 --cpu- >type=detailed --caches --mem-type=ddr3_1600_x64 --script=./runbs2.rcS >(where >runbs2.rcS runs blackscholes algorithm). > >The simulator does not even start it dies at: > >info: Entering event queue @ 0. Starting simulation... >warn: Don't know what interrupt to clear for console. >warn: x86 cpuid: unknown family 0x8086 >warn: x86 cpuid: unknown family 0x8086 >warn: x86 cpuid: unknown family 0x8086 >warn: instruction 'wbinvd' unimplemented >warn: Address 0x100000000 is outside of physical memory, stopping fetch >warn: Address 0x100000000 is outside of physical memory, stopping fetch >warn: instruction 'wbinvd' unimplemented >warn: x86 cpuid: unknown family 0x8086 >warn: x86 cpuid: unknown family 0x8086 >warn: x86 cpuid: unknown family 0x8086 >hack: Assuming logical destinations are 1 << id. >warn: Tried to clear PCI interrupt 14 > > >Any ideas? > >_______________________________________________ >gem5-users mailing list >[email protected] >http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2557590 ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2548782 _______________________________________________ gem5-users mailing list [email protected] http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
