Thank you for the suggestion. We'll give it a try later this week or next. Sue
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Nilay Vaish Sent: Monday, July 23, 2012 11:15 AM To: gem5 users mailing list Subject: [EXTERNAL] Re: [gem5-users] Gem5 Red Hat build not completing On Mon, 23 Jul 2012, Kelly, Suzanne M wrote: > Greetings, Based on a web page review, we (the Sandia SST team) suspect > you had/are experiencing a similar problem when trying to build GEM5 on > some Red Hat systems. For us, the problem manifests itself when > compiling decoder.cc. The compilation consumes large amounts of CPU time > and never finishes because gcc requires over 15 GB of memory for the > compilation. decoder.cc is a generated file and is about 119,000 lines. > Our bailing wire is to recognize that the compile options being selected > are -g and -O3. With these options, the resulting object file (on a > system with sufficient memory) is 3.8 _GB_, With just -O3 the object > file is 12 MB. With just -g the object file is 16 MB. Based on some > testing, the problem is not unique to a specific version of gcc. > > We are now running a local patch to remove the -g option. Unfortunately, > the change is applied to all objects generated as part of the gem5 > build. Have you found a better solution? If you have any suggestions, we > would be happy to try them out. > > Regards, > Sue Kelly > > PS Our local GEM5 copy is changeset: 8642:549b72de8f72 > > Sue, you might want to take a look at how -Werror option can be set specifically for a c/c++ file. Grep for Werror in the file src/SConscript. It is plausible that something similar can be worked out for the -g option. -- Nilay _______________________________________________ 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
