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| /gem5/src/mem/ | ||
| H A D | DRAMCtrl.py | 10864:83cec4049505 Sun Jun 07 15:02:00 EDT 2015 Matthias Jung <jungma@eit.uni-kl.de> mem: Add HMC Timing Parameters A single HMC-2500 x32 model based on: [1] DRAMSpec: a high-level DRAM bank modelling tool developed at the University of Kaiserslautern. This high level tool uses RC (resistance-capacitance) and CV (capacitance-voltage) models to estimate the DRAM bank latency and power numbers. [2] A Logic-base Interconnect for Supporting Near Memory Computation in the Hybrid Memory Cube (E. Azarkhish et. al) Assumed for the HMC model is a 30 nm technology node. The modelled HMC consists of a 4 Gbit part with 4 layers connected with TSVs. Each layer has 16 vaults and each vault consists of 2 banks per layer. In order to be able to use the same controller used for 2D DRAM generations for HMC, the following analogy is done: Channel (DDR) => Vault (HMC) device_size (DDR) => size of a single layer in a vault ranks per channel (DDR) => number of layers banks per rank (DDR) => banks per layer devices per rank (DDR) => devices per layer ( 1 for HMC). The parameters for which no input is available are inherited from the DDR3 configuration. |
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