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Currently, when the numThreads parameter is set to something larger than 1 in full system mode, the O3 CPU will just silently change it back down again to 1. This could be confusing to the user since it won't be immediately apparent, even when looking at config.ini, that their config isn't being respected. This change moves that check into the CPU constructor, where CPU behavior probably should be rather than the create() method which should just build the object, and also turns it into an error. Change-Id: I627ff8702b5e8aaad8839aa8d52524690be25619 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/35936 Reviewed-by: Gabe Black <gabeblack@google.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com>
This is the gem5 simulator. The main website can be found at http://www.gem5.org A good starting point is http://www.gem5.org/about, and for more information about building the simulator and getting started please see http://www.gem5.org/documentation and http://www.gem5.org/documentation/learning_gem5/introduction. To build gem5, you will need the following software: g++ or clang, Python (gem5 links in the Python interpreter), SCons, SWIG, zlib, m4, and lastly protobuf if you want trace capture and playback support. Please see http://www.gem5.org/documentation/general_docs/building for more details concerning the minimum versions of the aforementioned tools. Once you have all dependencies resolved, type 'scons build/<ARCH>/gem5.opt' where ARCH is one of ARM, NULL, MIPS, POWER, SPARC, or X86. This will build an optimized version of the gem5 binary (gem5.opt) for the the specified architecture. See http://www.gem5.org/documentation/general_docs/building for more details and options. The basic source release includes these subdirectories: - configs: example simulation configuration scripts - ext: less-common external packages needed to build gem5 - src: source code of the gem5 simulator - system: source for some optional system software for simulated systems - tests: regression tests - util: useful utility programs and files To run full-system simulations, you will need compiled system firmware (console and PALcode for Alpha), kernel binaries and one or more disk images. If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.