Didn't you say that you're running a program that's given a timeout? The timeout you specify is expected to be the time you got, so your results make all the sense, isn't it? On May 31, 2013 8:24 AM, "Guru Prasad" <gurup...@buffalo.edu> wrote:
> Hi Andrws, > This is the output i obtained running with the configuration mentioned. > > 01 GHz > Time taken :0.1000000s > Number :189055 > > > 04 GHz > Time taken :0.1000000s > Number :392151 > > > 10 GHz > Time taken :0.1000000s > Number :472726 > > It does seem to correlate with what I would expect to be the output with > change in frequency. > > I will need to test further (or read appropriate documentation) to ensure > that timing model is actually being used in the command line mentioned > above. > > Thank you for your suggestions. > > Regards > Guru > > > > On Thu, May 30, 2013 at 2:55 PM, Guru Prasad <gurup...@buffalo.edu> wrote: > >> Hi Andrws, >> >> I'm running the simulations right now.. >> Could I ask how this makes a difference? >> >> Also, (How) is this different from --cpu-type=arm_detailed? >> >> This will be my command line..do let me know if there is an issue with it >> build/ARM/gem5.fast configs/example/fs.py --kernel >> /home/guru/gem5/kernel/linux-3.3-armdroid/vmlinux --disk-image >> /home/guru/gem5/gem5-stable/system/disks/android_jb_pa_spec.img >> --machine-type=VExpress_EMM --clock=1GHz --cpu-type=timing --num-cpus=1 >> --caches --cpu-type=detailed >> >> >> >> R >> egards >> >> Guru >> >> >> >> On Thu, May 30, 2013 at 2:36 PM, Andrws Vieira <andrwsvie...@gmail.com>wrote: >> >>> Hi Guru, >>> >>> Try to put in the end of command line: *cpu-type=detailed* >>> * >>> * >>> Like this -> build/ARM/gem5.fast configs/example/fs.py --kernel >>> /home/guru/gem5/kernel/linux-3.3-armdroid/vmlinux --disk-image >>> /home/guru/gem5/gem5-stable/system/disks/android_jb_pa_spec.img >>> --machine-type=VExpress_EMM --clock=4GHz --cpu-type=timing --num-cpus=1 -- >>> *cpu-type=detailed* >>> * >>> * >>> * >>> * >>> []'s >>> >>> >>> 2013/5/30 Guru Prasad <gurup...@buffalo.edu> >>> >>>> Here are some results >>>> >>>> Atomic >>>> 01 GHz >>>> Time taken :0.1000006s >>>> Number :142617 >>>> >>>> 04 GHz >>>> Time taken :0.1000003s >>>> Number :575327 >>>> >>>> 10 GHz >>>> Time taken :0.1000003s >>>> Number :1428815 >>>> >>>> >>>> >>>> Timing >>>> 01 GHz >>>> Time taken :0.1000310s >>>> Number :4597 >>>> >>>> 04 GHz >>>> Time taken :0.1000302s >>>> Number :4657 >>>> >>>> 10 GHz >>>> Time taken :0.1000297s >>>> Number :4643 >>>> >>>> >>>> Maybe this is how timing is supposed to work..I'm not sure.. >>>> I just didn't understand it and wanted to ask other users >>>> >>>> Regards >>>> Guru >>>> >>>> >>>> >>>> On Thu, May 30, 2013 at 2:09 PM, Guru Prasad <gurup...@buffalo.edu>wrote: >>>> >>>>> Hi Andreas, >>>>> >>>>> The output of my program is the same. >>>>> I'm running primality test program that is given a time bound. >>>>> >>>>> I >>>>> t returns the last number that it tested when it runs out of time. >>>>> >>>>> I would expect the last number computed to differ based on frequency >>>>> specified while running Gem5. >>>>> >>>>> This differs significantly when using both, Atomic model and O3.. >>>>> But regardless of the --clock parameter, timing model always gives me >>>>> results that are very close. >>>>> >>>>> >>>>> My command line parameters are >>>>> >>>>> build/ARM/gem5.fast configs/example/fs.py --kernel >>>>> /home/guru/gem5/kernel/linux-3.3-armdroid/vmlinux --disk-image >>>>> /home/guru/gem5/gem5-stable/system/disks/android_jb_pa_spec.img >>>>> --machine-type=VExpress_EMM --clock=4GHz --cpu-type=timing --num-cpus=1 >>>>> >>>>> I am working with a slightly outdated gem5 source..I believe my >>>>> revision is 9197 >>>>> >>>>> >>>>> >>>>> On Thu, May 30, 2013 at 1:57 PM, Andreas Hansson < >>>>> andreas.hans...@arm.com> wrote: >>>>> >>>>>> Hi Guru, >>>>>> >>>>>> Could you perhaps elaborate on "same results"? Are all stats >>>>>> exactly the same, or is the output of the program the same? Also, what >>>>>> config script are you running? >>>>>> >>>>>> Andreas >>>>>> >>>>>> From: Guru Prasad <gurup...@buffalo.edu> >>>>>> Reply-To: gem5 users mailing list <gem5-users@gem5.org> >>>>>> Date: Thursday, 30 May 2013 18:45 >>>>>> To: "gem5-users@gem5.org" <gem5-users@gem5.org>, "gem5-...@gem5.org" >>>>>> <gem5-...@gem5.org> >>>>>> Subject: [gem5-users] Timing CPU model >>>>>> >>>>>> I was recently running some tests using the timing CPU model and >>>>>> noticed that my cpu-bound workload was always producing the same results >>>>>> regardless of the --clock parameter specified. >>>>>> >>>>>> I tested this with >>>>>> --clock=0.1GHz (not sure if floating points work for parameters) >>>>>> --clock=1GHz >>>>>> --clock=4GHz >>>>>> --clock=10GHz >>>>>> >>>>>> Could anyone explain to me why this is the case? Is there something >>>>>> implicit in the timing model that I'm not quite grasping? >>>>>> >>>>>> -- 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. >>>>>> >>>>>> _______________________________________________ >>>>>> gem5-users mailing list >>>>>> gem5-users@gem5.org >>>>>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >>>>>> >>>>> >>>>> >>>> >>>> _______________________________________________ >>>> gem5-users mailing list >>>> gem5-users@gem5.org >>>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >>>> >>> >>> >>> >>> -- >>> *Andrws Aires Vieira * >>> Mestrando em Computação >>> Universidade Federal do Rio Grande do Sul - UFRGS >>> >>> _______________________________________________ >>> gem5-users mailing list >>> gem5-users@gem5.org >>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >>> >> >> > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >
_______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
