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NVSim - A performance, energy and area estimation tool for non-volatile memory (NVM)
Home Page: http://nvsim.org/
This project forked from seal-ucsb/nvsim
NVSim - A performance, energy and area estimation tool for non-volatile memory (NVM)
Home Page: http://nvsim.org/
NVSim - A performance, energy and area estimation tool for non-volatile memory (NVM) ====================================================== Sections 1. Overview 2. Compiling NVSim 3. Running NVSim 4. Configuring NVSim 5. Hacking NVSim 6. README Changelog ------------------------------------------------------ 1. Overview NVSim models the area, timing, dynamic energy and leakage power of Phase-Change Memory (PCM), Spin- Torque-Transfer RAM (STT-RAM), Resistive RAM (ReRAM) or memristor, Floating Body Dynamic RAM (FBDRAM) and Single-Level Cell NAND Flash. NVSim uses the same modeling principles as the well-known CACTI, but it starts from scratch on the basis of a brand-new frame work with more flexibility in terms of bank/mat/subarray organization and periphral circuitry design. Such flexibility is necessary for emerging non-volatile memory technologies as the current status of most emerging NVMs is unknown. Thanks for trying NVSim! ------------------------------------------------------ 2. Compiling NVSim NVSim is programmed under GNU C++, and it can be compiled on both Unix-like OSes and Microsoft Windows 2a. Under Linux The tool can be built using make: $ make Running through make will automatically set the compile flags needed. ------------------------------------------------------ 3. Running NVSim If no .cfg file is specified, NVSim will load the default configuration file (nvsim.cfg) $ ./nvsim Actually, users can specify their own configurations by passing the ".cfg" argument. $ ./nvsim <custom>.cfg ------------------------------------------------------ 4. Configuring NVSim NVSim can be configured using the configuration files. Several example configuration files can be found in the root directory of the source code. Note that most of the configuration files are specified with small capacity (< 128MB) as the current version of NVSim only models a single-bank. Multi-bank cache/memory is in the to-do list of NVSim 2.0. For example, sample_STTRAM_cache.cfg - A 8MB STT-RAM cache (both data and array) configured for design space exploration sample_PCRAM.cfg - A 16MB PCM macro with fixed bank organization (H-tree, internal sensing) sample_NVM_macro.cfg - A generic NVM macro A more detailed listing of configuration parameter names and potential values are on the NVSim wiki page. ------------------------------------------------------ 5. Hacking NVSim As mentioned in the overview, NVSim is meant to be flexible. Another level of flexibility is enabled when experts in NVM design Write their own sense amplifier, voltage plane, charge pump circuiitry etc. This can be done by creating a new C++ file with a new class and instantiate the new class in corresponding component. ------------------------------------------------------ Please refer to the following paper for a general introduction of the tool, "NVSim: A Circuit-Level Performance, Energy and Area Model for Emerging Nonvolatile Memory", IEEE TCAD 2012 If you have any comments, questions, or suggestions please either create an issue on github or contact us via email. Cong Xu <[email protected]> Xiangyu Dong <[email protected]> Shuangchen Li <[email protected]>
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