gem5 has two different memory systems right now, the classic M5 system
and the new Ruby system. I'm not an expert in this area, but I'm
pretty sure you have to use one or the other, not both. I know a
little bit about the classic system and very little about Ruby.
Gabe
Quoting xuewen zhou <[email protected]>:
hello,Korey Sewell
Thank you very much for answering me so kind ! But now I have the same
questions just I ask last time : how could I get the new simObjet's ports
,and how could I
connect the with Ruby system ? and another question is that what is in Ruby
system ? Is it containing network topology or something else ?
Thank you very much !
? 2011?5?17? ??7:47?Korey Sewell <[email protected]>???
I'm not sure what the answer is to many of your questions, but it seems
that a good solution to figuring them out would be to just run some simple
workloads and then look at the "config.ini" file (default outputted to the
m5out directory) to verify your configuration is what you think it is. At
first glance, just running "hello world" programs in SE mode would be OK and
then you can do some trial/error in the Ruby files to figure out how things
work.
Once you are ready for FS mode, check the gem5 page for instructions on
getting started there, and then I would say the same process would suffice
as well. Start up a simple workload and then toggle configuration parameters
to learn how the different things work.
And the end of the day, there is no substitute for going through the code
itself, so as you do that I would suggest noting helpful "DebugFlags" that
are denoted by "DPRINTF" statements. There is documentation on how to use
these DebugFlags (TraceFlags) on the gem5 page as well and these will also
help you figure out what's going on:
./m5.opt --debug-flags=Ruby configs/example/ruby_se.py
2011/5/17 xuewen zhou <[email protected]>
hello?Gabe ?
I am still another question ?
in DMA_controller.py?there is no port?in RubyController?there is also no
port ?could I add port myself ? or do something else to get the
DMA_controller?s
port ?Thank you?
? 2011?5?17? ??5:48?Gabe Black <[email protected]>???
The best place to see what parameters and ports are on SimObjects is to
look in the src directory for .py files. That's where the SimObjects are
defined. The values in those files are defaults, and not meant
for actually
configuring things.
The scripts that are normally used to set up a simulation are in the
configs directory. You are encouraged to make your own scripts using those
as an example, but you can also use those directly, especially to get
started. Those scripts (in particular your versions of them) are where you
should configure the SimObjects.
Gabe
On 05/16/11 21:19, xuewen zhou wrote:
I have read this part ?but where could I get the ports? name and how
could I connect them??for example how could I know the DMA_controller?s
port and how to connect them to Ruby system ??Thank you very much?
2011/5/17 Gabriel Michael Black <[email protected]>
This should get you started.
http://m5sim.org/Simulation_Scripts_Explained
Quoting xuewen zhou <[email protected]>:
hello,Gabe,
Could you tell me where I find the hardware confige file in M5. Or I
should
ask that ,now I have design
a hardware system which contais two ARM cores , DMA ,crossbar and
other
modules ,I want to implement this system in M5 , how could
I config it (or which files I can use in M5,or how could I do ) ?
Thank you
very much!
2011/3/22 Gabriel Michael Black <[email protected]>
There's some documentation on the website you might find helpful. You
should read through that first.
www.m5sim.org
Gabe
Quoting xuewen zhou <[email protected]>:
Thank you very much !
Could you tell me how to get the help of command line parameter,such
as -n
(or how could you know to use '-n' as the parameter of core
number.)And
how
to set other parameters ,such as cpu frequency , memory size and so
on
,where could I get help about these and othe useful command.
Best regards!
2011/3/21 Nilay Vaish <[email protected]>
On Mon, 21 Mar 2011, xuewen zhou wrote:
hello , every body ,could someone tell me how to use M5(configure it
with
the number cores , connection--crossbar,and memory),Thank you very
much!
The number of cores is configured with the command line parameter
'-n',
as
in -n 4 would create a four-processor system. Ruby uses Crossbar by
default,
so as such there is no need to change the topology. You can do so by
using
the option --topology <topology name>. The available topologies are
in
the
directory src/mem/ruby/network/topologies.
Have a look at the file configs/common/Options.py for more command
line
parameters.
--
Nilay
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Xuewen Zhou Master
Shanghai Jiaotong University
School of Microelectronics
National Engineering Laboratory For Automotive Electronic Control
Technology
800 Dongchuan Road, Shanghai 200240, P. R. China
Phone : 13062728106
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Xuewen Zhou Master
Shanghai Jiaotong University
School of Microelectronics
National Engineering Laboratory For Automotive Electronic Control
Technology
800 Dongchuan Road, Shanghai 200240, P. R. China
Phone : 13062728106
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--
Xuewen Zhou Master
Shanghai Jiaotong University
School of Microelectronics
National Engineering Laboratory For Automotive Electronic Control
Technology
800 Dongchuan Road, Shanghai 200240, P. R. China
Phone : 13062728106
_______________________________________________
gem5-users mailing
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_______________________________________________
gem5-users mailing list
[email protected]
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--
Xuewen Zhou Master
Shanghai Jiaotong University
School of Microelectronics
National Engineering Laboratory For Automotive Electronic Control
Technology
800 Dongchuan Road, Shanghai 200240, P. R. China
Phone : 13062728106
_______________________________________________
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[email protected]
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--
- Korey
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--
Xuewen Zhou Master
Shanghai Jiaotong University
School of Microelectronics
National Engineering Laboratory For Automotive Electronic Control Technology
800 Dongchuan Road, Shanghai 200240, P. R. China
Phone : 13062728106
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