Logo

AnswerXpert

DTCO Discussion Forum

  

process of libMetric™ and Copernic™ in DTCO.ML™

labels libMetric™

Could you please share the optimization algorithm and process of libMetric™ and Copernic™ in DTCO.ML™ specifically in the physical design optimization part? For example, how to import PPA analysis for iteration?

LogicSynthPro | 2025-07-25 10:09:06

💬 Comments section

Hi, LogicSynthPro,

That’s a great question! I’ve provided my answer below:


1. libMetric™ – Cell-Level PPA Modeling

  • libMetric™ extracts timing, power, and area data from Liberty .lib files.
  • It converts the data into structured JSON and uses lookup tables, interpolation, and least squares regression to build continuous models of PPA under varying conditions (e.g., different loads and transitions).
  • These models are then used to drive higher-level analysis such as STA, power estimation, and area budgeting.

2. Copernic™ – Statistical and Yield-Aware Optimization

  • Copernic™ creates large-scale virtual wafer datasets based on process variation models and pre-trained ML-based technology profiles.
  • It uses statistical methods (e.g., feature density, binning, distribution fitting) to evaluate design sensitivity and estimate yield impact from design/process variations.
  • These metrics help identify which design or cell-level parameters most strongly affect PPA/yield under process corners.


Overall, if you wanna optimize your design with process-aware PPA analysis, you can follow this flow:

A. Extract PPA: Use libMetric™ to extract cell-level PPA models.

B. Design Analysis: Plug these models into RTL-to-GDS flow (logic synthesis, STA, power analysis).

C. Variation Simulation: Use Copernic™ to simulate yield and performance under variation.

D. Adjustment: Based on analysis results, adjust design margins, cell choices, timing constraints, etc.

E. Repeat until both PPA and yield targets are met.


DTCO 客服02 | 2025-08-01 10:50:09 |

📝 Post a comment

字元數:0

🛒 Visit DTCO Shop

Enjoy latest products, try for FREE!

🛍️ Shop & Try Now