a91c1e69a8
This changeset adds forking capabilities to the gem5 python scripts. A fork method is added to simulate.py. This method is responsible for forking the simulator itself, and will direct all output files to a new output directory based on the fork sequence number. The default name of the output directory is the same as the parent with the suffix ".fN" added where N is the fork sequence number. The fork method provides the option to specify if the system should be drained prior to forking, or not. By default the system is drained to ensure that there are no in-flight transactions. When forking the simulator, the fork method returns the PID of the child process, or returns 0 if running in the child. This is in line with the standard Python forking interface. Signed-off-by: Andreas Sandberg <andreas@sandberg.pp.se> [sascha.bischoff@arm.com: Rebased patches onto a newer gem5 version] Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com> [andreas.sandberg@arm.com: Updated to comply with modern draining semantics ] Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> |
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configs | ||
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src | ||
system | ||
tests | ||
util | ||
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COPYING | ||
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README | ||
SConstruct |
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/Introduction, and for more information about building the simulator and getting started please see http://www.gem5.org/Documentation and http://www.gem5.org/Tutorials. 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/Dependencies 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 ALPHA, 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/Build_System for more details and options. With the simulator built, have a look at http://www.gem5.org/Running_gem5 for more information on how to use gem5. 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. Please see the gem5 download page for these items at http://www.gem5.org/Download If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.