Hi all,
I am trying to simulate a distributed system using m5 v2-b3 and
ALPHA_FS. I have been looking the example in fs.py where you build a
2-machine system by connecting the etherint objects of the two systems
using an etherLink.
My goal is to connect the ethernet interfaces of more than two systems,
which as far as I understand cannot be done with etherLink. There is an
EtherBus class present that seems to be the one to use to connect
multiple EtherInt devices but I cannot find out how to do it. The
EtherBus has a devlist attribute and a reg() function to add devices to
the devlist but there doesn't seem to be any way of registering devices
using python.
I have tried the following in my configuration file:
/
ethBus = EtherBus()
Parent.testsys1.tsunami.etherint[0].peer = ethB/us
but the assignment is (obviously) not correct. I get the following error:
/Traceback (most recent call last):
File "<string>", line 1, in <module>
File "build/ALPHA_FS/python/m5/main.py", line 326, in main
execfile(sys.argv[0], scope)
File "configs/myConf/myFS.py", line 120, in <module>
root = makeQuadRoot(m_test_sys[0], m_test_sys[1], m_test_sys[2],
drive_sys, options.etherdump)
File "/media/x3/m5-2.0b3/configs/common/FSConfig.py", line 119, in
makeQuadRoot
Parent.testsys1.tsunami.etherint[0].peer = ethBus
File "build/ALPHA_FS/python/m5/proxy.py", line 56, in __setattr__
"cannot set attribute '%s' on proxy object" % attr
AttributeError: cannot set attribute 'peer' on proxy object/
Shouldn't the EtherBus have some port attribute like the Bus() class has
in order to connect the various EtherInt objects?
Is there another way to make the interconnections for a distributed
memory system?
Thanks in advance,
Nikolas
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