Does the RubySystem object have a pointer to a RubyCache object?
You could also go into the python code and add some print statements to get
a clue about where the cycle is occurring.
Steve
On Wed, Mar 9, 2011 at 4:51 AM, Nilay <ni...@cs.wisc.edu> wrote:
> Brad, given current versions of MESI_CMP_directory.py and Ruby.py, the
> following change to the way cache memory is added to the system creates a
> loop. What am I missing here?
>
> class RubyAbstractMemory(SimObject):
> type = 'RubyAbstractMemory'
> cxx_class = 'AbstractMemory'
> system = Param.RubySystem(Parent.any,"Ruby System");
>
> class RubyCache(RubyAbstractMemory):
> type = 'RubyCache'
> cxx_class = 'CacheMemory'
> size = Param.MemorySize("capacity in bytes");
> latency = Param.Int("");
> assoc = Param.Int("");
> replacement_policy = Param.String("PSEUDO_LRU", "");
> start_index_bit = Param.Int(6, "index start, default 6 for 64-byte
> line");
>
> --
> Nilay
>
> On Tue, March 8, 2011 6:35 pm, Steve Reinhardt wrote:
> > It probably means that two objects have pointers to each other as
> > parameters
> > (or more generally there's a cycle). See step 3 here:
> > http://m5sim.org/wiki/index.php/SimObject_Initialization
> >
> >
> > On Tue, Mar 8, 2011 at 4:27 PM, Nilay Vaish <ni...@cs.wisc.edu> wrote:
> >
> >> When does the following error occurs? Is it that an object is being
> >> accessed while it is being created?
> >>
> >>
> >> File "/afs/
> >>
> cs.wisc.edu/u/n/i/nilay/private/Architecture/GEM5/m5/src/python/m5/SimObject.py
> ",
> >> line 834, in getCCObject
> >> raise RuntimeError, "%s: Cycle found in configuration hierarchy." \
> >> RuntimeError: system.l1_cntrl0.L1DcacheMemory: Cycle found in
> >> configuration
> >> hierarchy.
> >>
> >>
> >> --
> >> Nilay
> >>
> >>
>
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