Thanks a lot Amin. Now it's working. I actually had to insert the line in
Simulation.py rather than fs.py, since I switch cpus after restoring from
checkpoint and therefore, I had to assign the robsize to "switch_cpus"
rather than "system.cpu".
Appreciate your help,
Mahshid
On Wed, Jul 17, 2013 at 2:32 AM, Amin Farmahini <amin...@gmail.com> wrote:
> You should not add it there. O3CPU.py defines the variables (processor
> parameters in this case) with their default values.
> You should add it to your se.py or fe.py. After you instantiate your
> processor, you can set this up. Something like:
> system.cpu[?].numROBEntries = option.robsize
>
> (Actually this is not the recommended way if you want to keep your code
> clean, but it is the easier way. The better way is to make a separate
> python file to take care of such things like what is done in CacheConfig.py)
>
> Amin
>
>
> On Wed, Jul 17, 2013 at 12:12 AM, Mahshid Sedghi <mahshid.sed...@gmail.com
> > wrote:
>
>> Thanks Tao and Amin. I am able to add options, but I am not able to
>> assign it to numROBEntries. I mean when I use this in O3CPU.py:
>>
>> numROBEntries = options.robsize
>>
>> it doesn't work, since options module is not defined here. I tried
>> importing options, but still didn't work. Can you elaborate on how to do
>> this?
>>
>> Thanks.
>>
>>
>> On Tue, Jul 16, 2013 at 9:32 PM, Zheng Wu <z...@uwaterloo.ca> wrote:
>>
>>> Hi,
>>>
>>> I am also curious about how to create new options as well. The
>>> numRobEntries in O3CPU.py you mentioned has the following:
>>>
>>> "numROBEntries = Param.Unsigned(192, "Number of reorder buffer entries")"
>>>
>>> How is this related to options.robsize as mentioned?
>>>
>>>
>>> In addition, what if I were to add another data member to a class and
>>> want to use python options to set the value, what additional steps or
>>> procedure do i need to perform? Do I need to do anything with SWIG or
>>> something?
>>>
>>> Thanks,
>>> Zheng Wu
>>>
>>>
>>> On 2013-07-16, at 8:23 PM, Amin Farmahini <amin...@gmail.com> wrote:
>>>
>>> The last thing that Tao forgot to mention is to use options.robsize to
>>> set the value of numROBEntries (numROBEntries is defined in
>>> src/cpu/o3/O3CPU.py).
>>>
>>> Amin
>>>
>>>
>>> On Tue, Jul 16, 2013 at 5:06 PM, Tao Zhang <tao.zhang.0...@gmail.com>wrote:
>>>
>>>> Hi Mahshid,****
>>>>
>>>> ** **
>>>>
>>>> You can use the “add_option” to add any desired options in the command
>>>> line. To do this, you just add the line below (or something like it) at the
>>>> beginning of your fs.py. ****
>>>>
>>>> ** **
>>>>
>>>> parser.add_option("-rob", "--robsize", type="int", default=128,
>>>> help=”specify the rob size”);****
>>>>
>>>> ** **
>>>>
>>>> Then, after all options (including the default options and personalized
>>>> options) have been parsed (in other words, the variable ‘options’ is
>>>> initialized), you can simply leverage the option below.****
>>>>
>>>> ** **
>>>>
>>>> options.robsize****
>>>>
>>>> ** **
>>>>
>>>> After this, you can use the option in the command line, like****
>>>>
>>>> ** **
>>>>
>>>> gem5.opt configs/example/se.py --robsize=64 ……****
>>>>
>>>> ** **
>>>>
>>>> Note that if your option includes dash “-”, it will be converted into
>>>> underscore “_”. For example, “--rob-size” produces representative
>>>> “options.rob_size”. ****
>>>>
>>>> ** **
>>>>
>>>> Also, it is pretty helpful if you look at the Options.py to see how the
>>>> default options are added into the system. The file is in configs/common/.
>>>> ****
>>>>
>>>> ** **
>>>>
>>>> -Tao****
>>>>
>>>> ** **
>>>>
>>>> ** **
>>>>
>>>> *From:* gem5-users-boun...@gem5.org [mailto:gem5-users-boun...@gem5.org]
>>>> *On Behalf Of *Mahshid Sedghi
>>>> *Sent:* Tuesday, July 16, 2013 4:35 PM
>>>> *To:* gem5 users mailing list
>>>> *Subject:* [gem5-users] (no subject)****
>>>>
>>>> ** **
>>>>
>>>> Hello,****
>>>>
>>>> ** **
>>>>
>>>> I want to introduce a new option to the simulation script to define the
>>>> ROB size, since I am doing experiments with different ROB sizes and would
>>>> like to skip the procedure of rebuilding the gem5 again and again for
>>>> different ROB sizes. Basically, I need to do a similar thing as the thread
>>>> below:****
>>>>
>>>> ** **
>>>>
>>>> http://www.mail-archive.com/gem5-users@gem5.org/msg00480.html****
>>>>
>>>> ** **
>>>>
>>>> I am not still sure how to relate the option with the cpu parameters.
>>>> I'd appreciate it if someone can give me some hints.****
>>>>
>>>> ** **
>>>>
>>>> Thanks,****
>>>>
>>>> Mahshid****
>>>>
>>>> _______________________________________________
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>>>>
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