Hi Kazi, I don't know exactly how to integrate DRAMSim3, but I recommend you open an Issue on GitHub (https://github.com/gem5/gem5/issues) or just a new Pull Request about this as that is the "standard" process now for integrating in cool features like this. Let me know if you need help doing so.
Thanks, Matt ________________________________ From: Kazi Asifuzzaman via gem5-users <gem5-users@gem5.org> Sent: Monday, July 7, 2025 6:44 PM To: gem5-users@gem5.org <gem5-users@gem5.org> Cc: Kazi Asifuzzaman <kazi.asifuzza...@gmail.com> Subject: [gem5-users] Gem5 DRAMSim3 integration Hello, (1) What are the steps for integrating DRAMSim3 as the memory simulator to Gem5? We added dramsim3 repository in ext/dramsim3 and built (scons -j4 build/VEGA_X86/gem5.opt) (2) After the integration, how do we invoke DRAMSim3 instead of the Gem5 memory model? It executes fine when I use gem5's memory model: build/VEGA_X86/gem5.opt configs/deprecated/example/se.py --cmd=tests/test-progs/hello/bin/x86/linux/hello But fails when I add the dramsim3 options: build/VEGA_X86/gem5.opt configs/deprecated/example/se.py --cmd=tests/test-progs/hello/bin/x86/linux/hello --mem-type=DRAMsim3 --dramsim3-ini=ext/dramsim3/DRAMsim3/configs/DDR4_8Gb_x8_3200.ini gem5 Simulator System. https://www.gem5.org<https://urldefense.com/v3/__https://www.gem5.org__;!!Mak6IKo!NaxUC46axme5XnV0jaAFXB09J8EpMu5uYGe2aafIaqOSAt9F63DxANJN6tziI7w6tENN-WQH9_Y31hyEp89dNw$> gem5 is copyrighted software; use the --copyright option for details. gem5 version DEVELOP-FOR-25.1 gem5 compiled Jul 7 2025 19:20:40 gem5 started Jul 7 2025 19:43:24 gem5 executing on milan2.ftpn.ornl.gov<https://urldefense.com/v3/__http://milan2.ftpn.ornl.gov__;!!Mak6IKo!NaxUC46axme5XnV0jaAFXB09J8EpMu5uYGe2aafIaqOSAt9F63DxANJN6tziI7w6tENN-WQH9_Y31hxjCRpNcQ$>, pid 1965880 command line: build/VEGA_X86/gem5.opt configs/deprecated/example/se.py --cmd=tests/test-progs/hello/bin/x86/linux/hello --mem-type=DRAMsim3 warn: The se.py script is deprecated. It will be removed in future releases of gem5. AttributeError: object 'DRAMsim3' has no attribute 'controller' (C++ object is not yet constructed, so wrapped C++ methods are unavailable.) At: src/python/m5/SimObject.py(868): __getattr__ /home/kpa/kpa/pim-resources/gem5/configs/common/MemConfig.py(243): config_mem configs/deprecated/example/se.py(289): <module> src/python/m5/main.py(682): main Has anything changed, or am I missing any steps? Thanks, Kazi
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