Re: [gem5-users] Changes in cache resplacement policies

[Dongwoo Lee]

Use the python function 'eval()'

For example,
repl = "LRU()"
tags = eval(repl)


-Dongwoo Lee


2013-09-25(?) ?? 7:02, Roberto Rodríguez-Rodríguez ? ?:

Thank you Dongwoo Lee, it worked perfectly.

Now I just need to add the tags selection as an option in Options.py for use it in CacheConfig.py.

The problem is the asignation has to be done as tags=LRU() and not as tags="LRU()", and there is not data type in Options.py that supports this format (not a string)

Saludos
             Roberto

On Mon, Sep 23, 2013 at 5:55 AM, Dongwoo Lee <dongwoo...@dal.snu.ac.kr <mailto:dongwoo...@dal.snu.ac.kr>> wrote:

    Sorry,
    src/mem/cache/BaseCache.py

    2013-09-23(?) ?? 12:47, Dongwoo Lee ? ?:

    Try to check the following

    src/mem/cache/base.cc  (at the bottom)
    src/mem/cache/tags/Tags.py
    src/mem/cache/tags/BaseCache.py

    and use 'configs/common/Caches.py'

    for example,

    class L1Cache(BaseCache):
        ...
        tags = LRU()


    2013-09-23(?) ?? 7:15, Roberto Rodríguez-Rodríguez ? ?:

    Hello everyone,

    I am working on cache replacement policies using the classic
    memory model, I was using a gem5 version from April but I have a
    problem because one Parsec benchmark (canneal) finish
    incorrectly with LRU based policies.

    I tested an updated version of gem5 (the version from today) and
    the benchmark works perfectly, I tried to implement all my
    policies into the new version of the simulator but I see that
    the way the cache replacement policies were definied have changed.

    There is not builder.cc, I the old versions I added a new
    variable in src/mem/cache/BaseCache.py (replPolicy =
    Param.String("LRU", "")) and I used that variable in
    src/mem/cache/builder.cc. Could somebody tell me how can I add a
    new cache replacement policy in the new simulator version?

    Thanks in advance

                 Roberto


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