Download

RWCap-v3: floating Random Walk based Capacitance solver for conductor structures. Version 3 released. [2016]

Contributors

Zhezhao Xu, Bolong Zhang, Chao Zhang.

Supervisor

Wenjian Yu.

Details

1. The package includes two programs: "rwcap-solver" and "TechGFT". They are for performing 3-D capacitance extraction, and preparing the GFT/WVT data for the rwcap-solver, respectively. Their paths are "rwcap-solver/rwcap" and "TechGFT/TechGFT", respectively.

2. Deferent from previous versions, TechGFT is now a standalone program not relying on Matlab.

3. The package also includes a lot of test cases in our publications. For the syntax of case file, please refer to the documents in RWCap-v2 website. Notice that term "qbem" is always exchangeable to term "cap3d".

4. For the usage of the programs, please refer to the documents in RWCap-v2 website. Also, please carefully read the "readme.1st" file in the package.

5. The programs have been tested on 32-bit and 64-bit Redhat and Ubuntu Linux systems. TechGFT may be unstable on older systems. Please try to run them on newer system with Linux version 3, and glibc with version > 4.

Two running modes

$ ./rwcap --gft <data_dir>

Register the folder "data_dir" storing the data generated by TechGFT.

$ ./rwcap -f <file_name> -p <err_self_cap> | -c <err_coup_cap> | <Other_control> [-n <num_thread> ] [-o <output_file> ] [other_options]

"-f" specifies the input file name.

"-p/c" specifies the threshold of relative error of Self/coupling capacitance.

"-n" specifies the number of threads for parallel computing.

Refered papers

1. Wenjian Yu, Hao Zhuang, Chao Zhang, Gang Hu, Zhi Liu, "RWCap: A floating random walk solver for 3-D capacitance extraction of VLSI interconnects," IEEE Trans. Computer-Aided Design, 32(3): 353-366, 2013. [pdf]

2. Chao Zhang and Wenjian Yu, "Efficient space management techniques for large-scale interconnect capacitance extraction with floating random walks," IEEE Trans. Computer-Aided Design, 32(10): 1633-1637, 2013 [pdf]

3. Wenjian Yu, "RWCap2: Advanced floating random walk solver for the capacitance extraction of VLSI interconnects," in Proc. International Conference on ASIC, Shenzhen, China. Oct. 2013, pp. 162-165. (invited paper) [pdf]

4. Chao Zhang, Wenjian Yu, "Efficient techniques for the capacitance extraction of chip-scale VLSI interconnects using floating random walk algorithm," in Proc. IEEE ASP-DAC, Singapore, Jan. 2014, 756-761. [pdf]

5. Bolong Zhang, Wenjian Yu, and Chao Zhang, "Improved pre-characterization method for the random walk based capacitance extraction of multi-dielectric VLSI interconnects," International Journal of Numerical Modelling: Electronic Networks, Devices and Fields , 29(1): 21-34, 2016 [pdf]

6. Zhezhao Xu, Chao Zhang, and Wenjian Yu, "Floating random walk based capacitance extraction for general non-Manhattan conductor structures," IEEE Trans. Computer-Aided Design, 36(1): 120-133, 2017 [pdf]