Hi Dennis, I'm sorry to barge in on this discussion. When you say you "parallelize the out-of-order pipeline", what do you mean? It sounds very interesting. Is there any publication where I can read about it?
Thanks! - Ching Tsun On Tue, Jan 3, 2012 at 1:43 AM, Teng-Feng Yang <[email protected]> wrote: > Thanks for your quick reply! > > I got an additional question here. > Since I only parallelize the out-of-order pipeline, I directly replace > the *BaseCore* object array in *BaseMachine* with *OooCore* object array. > For some reason, I also need to call methods of *OOO_CORE_MODEL::ThreadContext > *in *machine.cpp*. However, SCons linker complains about undefined > reference to these methods when linking qemu binary. > It seems to me that the linker does not link the proper object files of > these methods, but I can't really find how to make this right even with > SCons user guide. > > Any help would be truly grateful! > > Dennis > > > 2012/1/1 avadh patel <[email protected]> > >> >> >> On Sat, Dec 31, 2011 at 5:37 AM, Teng-Feng Yang <[email protected]>wrote: >> >>> Hello >>> >>> Recently I try to parallelize the out-or-order pipeline of marss-0.2.1, >>> which I have already done before on marss-0.1.2. >>> I need to add some global variables in ooo.h which will be used in >>> ptlsim/sim/machine.cpp and ptlsim/core/ooo-core/*. >>> So I declare these global variables as "*extern* *(global variables >>> definition)*" in *ooo.h* and define "*(global variable definitions)*" >>> in *ooo.cpp* >>> However, the linker keeps complaining about the multiple definition >>> errors of all those newly added global variables. >>> The error message is: >>> >>> ptlsim/build/core/ooo-core/ooo-pipe_ooo_2.o: In function >>> `ooo_2::PhysicalRegister::unspecref(int, unsigned char)': >>> /home/iris/Work/marss-0.2.1/ptlsim/core/ooo-core/ooo.h:957: multiple >>> definition of `*(global variables)*' >>> ptlsim/build/core/ooo-core/ooo-pipe_ooo.o:/home/iris/Work/marss-0.2.1/ptlsim/core/ooo-core/ooo.h:957: >>> first defined here >>> >>> Since the SCONS omits the details of program compilation and linking >>> info, I have nearly no clue to resolve these errors. >>> Any help would be grateful! >>> >>> All cores are compiled multiple times because of the configuration >> mechanism. Because of that you'r getting this error. If you want any >> global variable place it in machine.cpp/h files. >> >> - Avadh >> >>> Dennis >>> >>> >>> >>> _______________________________________________ >>> http://www.marss86.org >>> Marss86-Devel mailing list >>> [email protected] >>> https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel >>> >>> >> > > > -- > Teng Feng Yang > Research Assistant of Director. P.C. Yew > Parallel Processing Laboratory > Institute of Information Science > Academia Sinica, Taiwan > Tel: 886-2-27883799#1676 > E-mail:[email protected] > > _______________________________________________ > http://www.marss86.org > Marss86-Devel mailing list > [email protected] > https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel > >
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