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GloryWatt®
Full-Chip Power Signoff Tool

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GloryWatt®

GloryWatt is a full-chip power signoff tool—the power-signoff core of chip signoff within the τ-Aware ToolFramework. Integrating a signoff-level power analysis engine, it accurately calculates average and peak power for a design under specific application scenarios based on inputs such as the design netlist, standard-cell libraries, parasitic parameters, and vector waveforms.

Key Features

Supports the toggle-rate propagation algorithm, enabling power estimation directly from RTL waveforms and supporting RTL-stage power evaluation.
Supports wire-load models for fast post-synthesis power evaluation.
Supports low-power design flows and UPF; supports standard back-end design formats including DEF, Verilog, Liberty, SPEF, VCD, and SAIF.
Supports static and dynamic power analysis.
Supports the toggle-rate propagation algorithm for direct power estimation from RTL waveforms.
Supports interpolation-based power calculation at arbitrary voltage/temperature points (voltage-temperature scaling).
Supports automatic name mapping between RTL VCD and gate-level netlists.
Supports τ-Aware hierarchical power modeling, outputting fine-grained per-die power distributions and transient time-slice power data.

Products Highlights

01

Unique power modeling technology
Abstracts intermediate computation results into parameterized models, supporting dynamic power recalculation based on temperature, voltage, and frequency—greatly improving iteration and co-simulation efficiency.

02

Comprehensive low-power design and early-analysis capability
Fully supports low-power design flows and UPF, provides wire-load models for fast post-synthesis power evaluation; the built-in toggle-rate propagation algorithm enables power estimation directly from RTL waveforms with error within 3% against full-netlist simulation.

03

Voltage-temperature scaling and name mapping
Supports interpolation-based power calculation at arbitrary voltage/temperature points; supports automatic name matching between RTL VCD and gate-level netlists.

04

Complete format compatibility and flow integration
Fully supports standard back-end design formats—DEF, Verilog, Liberty, SPEF, VCD, and SAIF—for seamless integration with back-end design flows.

05

τ-Aware hierarchical power modeling and electro-thermal support
Supports independent fine-grained hierarchical power modeling with spatial-distribution output; provides both steady-state average-power and transient time-based power data as heat sources, respectively suited to steady-state thermal analysis and dynamic thermal simulation; power results flow seamlessly into the electro-thermal coupling flow, supporting thermal-aware timing signoff through the "power–thermal–timing" multi-physics transmission chain.

Applications

Application Scenarios

Power signoff for large-scale digital chips, ensuring that power under specified operating frequencies and toggle conditions meets design constraints. Currently supports designs of 100M+ instances.

Anchored in Advanced-Node Signoff ,Empowering aτ-Aware EDA Framework

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