It seems it has been proposed in: http://www.mail-archive.com/[email protected]/msg04607.html
but I don't know if there's been any more recent effort. On Fri, Feb 24, 2012 at 5:17 PM, Paul Rosenfeld <[email protected]>wrote: > To be fair x86 is no ordinary architecture -- a mere ordinary machine > can't compile it. > > I mean to read 150k lines of source code or whatever and then try to > optimize them is no easy task. I wonder if anyone has proposed trying to > generate several files that make up the decoder instead of a single > monolithic .cc file. I don't know if that is feasible or if that would help > memory usage. > > On Fri, Feb 24, 2012 at 5:10 PM, Max Kelner <[email protected]> wrote: > >> To the earlier email, I was able to compile gem5.fast, so it is likely >> the compiler optimizations that are consuming all of the extra memory. I >> monitored the build with a top window, and I had two active processes: as, >> which used 2.1 GB, and cc1plus, which used 5.7 GB (out of 8 GB total). >> >> Has no one been able to compile gem5.opt for x86 on an ordinary machine? >> >> On Fri, Feb 24, 2012 at 4:46 PM, Paul Rosenfeld <[email protected]>wrote: >> >>> Yeah I've been able to compile x86 on our big servers (48gb memory), but >>> have had trouble on ordinary machines. I'd definitely keep a top window >>> open and monitor the memory usage. That decoder file is certainly a lot for >>> a compiler to chew on .... >>> >>> >>> >>> On Fri, Feb 24, 2012 at 4:35 PM, Nilay Vaish <[email protected]> wrote: >>> >>>> On Fri, 24 Feb 2012, Max Kelner wrote: >>>> >>>> I've been trying to compile gem5.opt for x86, using both the unmodified >>>>> gem5-stable repo (with 'scons build/X86_SE/gem5.opt') and the >>>>> unmodified >>>>> gem5 repo (with 'scons build/X86/gem5.opt'). I've tried on gcc 4.3.2, >>>>> 4.5.2, and 4.6.1, and in all cases the build fails when it gets to >>>>> decoder.cc after a very long time. The error is always something like: >>>>> >>>>> [ CXX] X86/arch/x86/decoder.cc -> .o >>>>> build/X86/arch/x86/decoder.cc:**120069:3: fatal error: error writing >>>>> to -: >>>>> Broken pipe >>>>> compilation terminated. >>>>> g++: Internal error: Killed (program as) >>>>> Please submit a full bug report. >>>>> See <http://gcc.gnu.org/bugs.html> for instructions. >>>>> scons: *** [build/X86/arch/x86/decoder.o] Error 1 >>>>> scons: building terminated because of errors. >>>>> >>>>> I've seen several other related errors on both the users and dev >>>>> mailing >>>>> list, but I haven't seen any solutions. On the dev list, I saw a >>>>> discussion >>>>> about splitting decoder.cc into several files, so that gcc could >>>>> compile >>>>> it, but I haven't come across any followup. >>>>> >>>>> Does anyone have an techniques for getting past this point in the >>>>> compile? >>>>> >>>>> Thanks, >>>>> Max >>>>> >>>>> Other system details: >>>>> The system has 8GB memory >>>>> Red Hat (Enterprise 4) >>>>> Python 2.6.7 >>>>> >>>>> >>>> Are you able to compile gem5.fast or gem5.debug? It definitely seems >>>> like gcc runs out of memory while compiling. Try compiling on a machine >>>> with more memory / swap space if you can. >>>> >>>> -- >>>> Nilay >>>> ______________________________**_________________ >>>> gem5-users mailing list >>>> [email protected] >>>> http://m5sim.org/cgi-bin/**mailman/listinfo/gem5-users<http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users> >>>> >>> >>> >>> _______________________________________________ >>> gem5-users mailing list >>> [email protected] >>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >>> >> >> >> >> -- >> Max Kelner >> College of Engineering, >> Cornell University >> [email protected] >> (419) 512-1098 >> >> >> _______________________________________________ >> gem5-users mailing list >> [email protected] >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> > > > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > -- Max Kelner College of Engineering, Cornell University [email protected] (419) 512-1098
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