Performance of cdsTextTo5x

Consider a scenario where a Verilog file contains a cell definition that comprises 1 million, 5 million, and 10 million instances whose master (symbols) exist in a reference library.

The following illustration shows the difference in performance of cdsTextTo5x as compared to Text Editor when evaluated on an exclusive system with 90GB RAM:

Currently, cdsTextTo5x supports these performance improvements only for Verilog-based cells.

Sample results and performance in the above scenarios are as follows:

Instances: 1 million
- Time taken by Text Editor: 19min 10sec
- Time taken by cdsTextTo5x: 2min 40sec
- Comparative performance of cdsTextTo5x: 6x faster
Instances: 5 million
- Time taken by Text Editor: 144min 5sec, approximately 2hr 30 min
- Time taken by cdsTextTo5x: 17min 10sec
- Comparative performance of cdsTextTo5x: 8x faster
Instances: 10 million, and 20 million vector pins at the top level
- Time taken by Text Editor: 522min, approximately 8hr 42min
- Time taken by cdsTextTo5x: 50min
- Comparative performance of cdsTextTo5x: 10x faster
  Performance results may vary depending on design size and hardware configuration.

The results above clearly indicate that cdsTextTo5x delivers faster and better performance when importing analog, digital, or mixed-signal netlist files.

Virtuoso Import Tools User Guide
Product Version IC23.1, September 2023