Thank you very much, Giorgos!
It is works for me! The second CPU is boot success!
BingLiang
------------------ ???????? ------------------
??????: "Giorgos Kopanas";<[email protected]>;
????????: 2015??5??29??(??????) ????9:23
??????: "gem5 users mailing list"<[email protected]>;
????: Re: [gem5-users]?????? ?????? ?????? ?????? about DVFS Futher Experiments
in Per-core DVFS
I suspect that something is wrong with your fs.py and it doesn't boot
the second CPU. But I can't be sure. I will show you my diff between
my dvfs_enabled fs.py and the original one. Please let me know if this
works for you.
121,123c121,127
< test_sys.cpu_clk_domain = SrcClockDomain(clock = options.cpu_clock,
< voltage_domain =
< test_sys.cpu_voltage_domain)
---
> test_sys.cpu_clk_domain = [SrcClockDomain(clock = options.cpu_clock,
> voltage_domain =
> test_sys.cpu_voltage_domain,
> domain_id=i)
> for i in xrange(np)]
>
> test_sys.dvfs_handler.domains = test_sys.cpu_clk_domain
> test_sys.dvfs_handler.enable = 1
140c144,146
< test_sys.cpu = [TestCPUClass(clk_domain=test_sys.cpu_clk_domain, cpu_id=i)
---
> test_sys.cpu = [TestCPUClass(clk_domain=test_sys.cpu_clk_domain[i],
> cpu_id=i)
> for i in xrange(np)]
> test_sys.cpu = [TestCPUClass(socket_id=i)
2015-05-29 10:54 GMT+03:00 ?????G?? <[email protected]>:
> Hi,Giorgos
> When I was into the m5term 3456 to change the options of the dvfs,I found
> this directory /sys/devices/system/cpu/cpu0/cpufreq/ does exist,but
> /sys/devices/system/cpu/cpu1/cpufreq/ does not exist.I creat 2 cpus , but
> only have one can change the options of the dvfs. Ideally, there should be a
> "cpufreq" for every core which provides the interface to change the
> frequency of the core. What should I do to fix this problem?
>
> My command line is
> ./build/ARM/gem5.opt --debug-flags=DVFS,EnergyCtrl
> --debug-file=dfvs_debug.log --stats-file=ValMemLat8MBn2.5percore-stats.txt
> configs/example/fs.py --cpu-type=AtomicSimpleCPU -n 2
> --machine-type=VExpress_EMM
> --kernel=/home/jinsong/gem5/linux-linaro-tracking-gem5/vmlinux
> --dtb-filename=/home/jinsong/gem5/linux-linaro-tracking-gem5/arch/arm/boot/dts/vexpress-v2p-ca15-tc1-gem5_dvfs_per_core_2cpus.dtb
> --disk-image=../disks/arm-ubuntu-natty-headless.img '--cpu-clock=[1 GHz,750
> MHz,500 MHz]'
>
>
> ------------------ ???????? ------------------
> ??????: "Giorgo Kopanas";<[email protected]>;
> ????????: 2015??5??28??(??????) ????8:09
> ??????: "gem5 users mailing list"<[email protected]>;
> ????: Re: [gem5-users]?????? ?????? ?????? about DVFS Futher Experiments in
> Per-core
> DVFS
>
> if you are sure that everything is loading up correctly and your fs.py
> is correct you should try to experiment under this folder
> /sys/devices/system/cpu/cpu0/cpufreq/ by changing the options of the
> dvfs and more.
>
> ~Giorgos
>
> 2015-05-28 3:28 GMT-04:00 ?????G?? <[email protected]>:
>> thank you very much for your reply!
>> I changed the fs.py script like this :
>>
>> test_sys.cpu = [TestCPUClass(socket_id=i)
>> for i in xrange(np)]
>> test_sys.cpu_clk_domain = [SrcClockDomain(clock = options.cpu_clock,
>> voltage_domain =
>> test_sys.cpu_voltage_domain,
>> domain_id = i)
>> for i in xrange(np)]
>>
>>
>> test_sys.dvfs_handler.domains = test_sys.cpu_clk_domain
>> test_sys.dvfs_handler.enable = 1
>>
>> if options.kernel is not None:
>> test_sys.kernel = binary(options.kernel)
>>
>> if options.script is not None:
>> test_sys.readfile = options.script
>>
>> if options.lpae:
>> test_sys.have_lpae = True
>>
>> if options.virtualisation:
>> test_sys.have_virtualization = True
>>
>> test_sys.init_param = options.init_param
>>
>> # For now, assign all the CPUs to the same clock domain
>> test_sys.cpu = [TestCPUClass(clk_domain=test_sys.cpu_clk_domain[i],
>> cpu_id=i)
>> for i in xrange(np)]
>> if is_kvm_cpu(TestCPUClass) or is_kvm_cpu(FutureClass):
>> test_sys.vm = KvmVM()
>>
>> But I find every core also in the same clock (and voltage) domains.
>> Could you tell me where it is wrong?what should I do next?
>>
>> Bing Liang
>>
>>
>> ------------------ ???????? ------------------
>> ??????: "Giorgos Kopanas";<[email protected]>;
>> ????????: 2015??5??26??(??????) ????7:19
>> ??????: "gem5 users mailing list"<[email protected]>;
>> ????: Re: [gem5-users]?????? ?????? about DVFS Futher Experiments in
>> Per-core DVFS
>>
>> https://www.mail-archive.com/[email protected]/msg11068.html
>> If I remember correctly you have to think how to patch them correctly
>> in the fs.py.
>>
>> You are welcome,
>> ~Giorgos
>>
>> 2015-05-26 7:03 GMT-04:00 ?????G?? <[email protected]>:
>>> Thanks for your help! I can't find this old mail.Could you give me the
>>> link
>>> of the mail?
>>>
>>> Bing Liang
>>>
>>>
>>> ------------------ ???????? ------------------
>>> ??????: "Giorgos Kopanas";<[email protected]>;
>>> ????????: 2015??5??26??(??????) ????5:31
>>> ??????: "gem5 users mailing list"<[email protected]>;
>>> ????: Re: [gem5-users]?????? about DVFS Futher Experiments in Per-core DVFS
>>>
>>> Check in the history of the mailing list there is an old mail saying how
>>> to
>>> do this. When i was trying it helped me. If you can not find it please
>>> tell
>>> so i can search for it and link it to you.
>>>
>>> Giorgos
>>>
>>> On May 26, 2015 5:29 AM, "Giorgos Kopanas" <[email protected]>
>>> wrote:
>>>>
>>>> On May 26, 2015 4:02 AM, "?????G??" <[email protected]> wrote:
>>>>>
>>>>> HI Andreas??
>>>>> thanks for your reply,Could you tell me the path of BaseCPU object in
>>>>> gem5?
>>>>>
>>>>> Bing Liang
>>>>>
>>>>>
>>>>> ------------------ ???????? ------------------
>>>>> ??????: "Andreas Hansson";<[email protected]>;
>>>>> ????????: 2015??5??26??(??????) ????3:11
>>>>> ??????: "gem5 users mailing list"<[email protected]>;
>>>>> ????: Re: [gem5-users] about DVFS Futher Experiments in Per-core DVFS
>>>>>
>>>>> Hi Bing Liang,
>>>>>
>>>>> The socket_id is a parameter on the BaseCPU object, and you set it like
>>>>> any other parameter, e.g. system.cpu[1].socket_id = 1
>>>>>
>>>>> Andreas
>>>>>
>>>>> From: ?????G?? <[email protected]>
>>>>> Reply-To: gem5 users mailing list <[email protected]>
>>>>> Date: Tuesday, 26 May 2015 05:59
>>>>> To: gem5-users <[email protected]>
>>>>> Subject: [gem5-users] about DVFS Futher Experiments in Per-core DVFS
>>>>>
>>>>> Hi??everyone:
>>>>> when I was test the DVFS experiments in per-core DVFS,the page is
>>>>> http://www.m5sim.org/Running_gem5#Experimenting_with_DVFS ,there is a
>>>>> sentence I don't know how to do. It is
>>>>>
>>>>> Change the socket_id to have a separate socket per CPU core
>>>>>
>>>>> Does anyone konws which file should I modify to change the socket_id
>>>>> ??and
>>>>> how to change the socket_id??
>>>>> thanks for any help!
>>>>> Bing Liang
>>>>>
>>>>> -- IMPORTANT NOTICE: The contents of this email and any attachments are
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>>>>> recipient, please notify the sender immediately and do not disclose the
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>>>>> 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
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>>>>>
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