This tool "CACHEFE" is designed for estimating SRAM failure rate.
Currently, the tool supports modeling three kinds of SRAM Failure Rate: Read Failure, Write failure, Sense Amplifier Failure. For more details about the failure , please refer to:
[1] Mukhopadhyay S, Mahmoodi H, Roy K. Modeling of failure probability and statistical design of SRAM array for yield enhancement in nanoscaled CMOS[J]. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2005, 24(12):1859-1880.
Basically, MOSFET failure rate is so small ( typically
) that Monte Carlo method would be costly (
simulations required ), So here we use algorithm described in :
[2] Yu H, Tao J, Liao C, et al. Efficient statistical analysis for correlated rare failure events via Asymptotic Probability Approximation[C]// Ieee/acm International Conference on Computer-Aided Design. IEEE, 2017:18.
Currently, the source codes request g++ ( version > 4.6 ) to compile on Linux | Mac OSX platform.
- Change directory to the path where your unzipped file are located.
- Compile the source code.
- Run the programm.
$ cd "your path"
$ make
$ ./CACHEFE -C (--Cell) argument [options]
./CACHEFE -C (--Cell) argument [-A (--Algo) arguement] [-T (--Type) argument]
[-C (--Cell) argument]: represents the cell number, the argument must be a positive integer and must be given.
[-A (--Algo) argument]: represents the algorithm used to calculate SRAM Failure Rate, the argument must be one of "APA", "APE", default is "APA".
[-T (--Type) argument]: represents the type of the failure,the argument must be one of"all","read","write","sa", default is "all".
./CACHEFE --Cell 64 : Using algorithm APA to simulate all types of failure of a SRAM with 64 Cells.
./CACHEFE -C 32 -T read : Using algorithm APA to simulate read failure of a SRAM with 32 Cells.
When you run the code in demo.cpp (by uncommenting the corresponding part in main.cpp), you can get results in ./CACHEFE_res, stored in txt (I have already put the demo reults there). If you have Matlab, you can use enter run draw.m in the command window to see the following images :
(1) Sense Amplifire Failure:
(2) Read Failure:
(3) WriteFailure:
- Thanks to a Github contributor with cmdline parser, you can find it here:https://github.com/tanakh/cmdline
If you have any questions related to this tool, please feel free to contact with me: [email protected] or [email protected]