Power and Energy Model¶
In this page, we will explain how we design and implement power and energy model of hardware.
For McPAT interfacing, see
SimpleSSD::CPU::CPU::calculatePower function defined in
We used DRAMPower  library for DRAM power and energy consumption estimation.
As gem5 uses DRAMPower, you can find DRAMPower source at
ext/drampower of SimpleSSD-FullSystem repository.
For standalone version,
lib/drampower contains same DRAMPower with full system.
For DRAMPower interfacing, see
write functions defined in
NAND flash array¶
As there is no NAND power estimation library, we created simple power/energy model for NAND flash based on NANDFlashSim .
From the NAND flash datasheet, we get current values that NAND flash consumes when idle or perform I/O operations. These values are multiplied by die active time (at each state, which is collected by PAL statistics) to get energy consumption (of course, the voltage value also multiplied).
|||Sheng Li, et. al., “McPAT: An integrated power, area, and timing modeling framework for multicore and manycore architectures, ” in the 42nd Annual IEEE/ACM International Symposium on Microarchitecture (MICRO 42), 2009|
|||Karthik Chandrasekar, et. al., “DRAMPower: Open-source DRAM Power & Energy Estimation Tool, ” URL: http://www.drampower.info|
|||Myoungsoo Jung, et. al., “NANDFlashSim: High-Fidelity, Micro-Architecture-Aware NAND Flash Memory Simulation, ” in ACM Transactions on Storage (ToS), vol. 12 issue 2, no. 6, Feb. 2016|