Superconducting Circuit Routing with Geometric Reach Scheduling
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Solution Overview
Problem
The limitations of CMOS technology in semiconductor-based integrated circuits, including high power consumption and design complexity due to zero-resistance wires in superconducting logic circuits, necessitate efficient scheduling of routing tasks for superconducting circuits to optimize performance and reduce power consumption.
Innovation Solution
A method for scheduling routing tasks in parallel based on geometric reach, utilizing zero-resistance wires with target inductance, and employing active or passive scheduling modes to ensure efficient use of computing resources and minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If parallel routing tasks are scheduled without considering geometric reach, then productivity increases, but manufacturing precision deteriorates due to interference between tasks
Solution Approach 1:
The patent segments the chip area into multiple non-overlapping rectangular regions based on geometric reach constraints. Each routing task is assigned to a specific region, preventing interference between parallel tasks while maximizing parallel execution capability.
Solution Approach 2:
The patent performs preliminary calculation of geometric reach for each routing task before parallel execution. Bounding boxes are pre-computed to define non-overlapping regions, ensuring that tasks can be safely executed in parallel without violating circuit performance requirements.
2Productivity
If more routing tasks are executed in parallel, then productivity increases, but device complexity increases due to scheduling overhead
Solution Approach 1:
The patent implements a dynamic scheduling system that automatically adjusts the number and configuration of parallel tasks based on available computing resources and task dependencies. The system dynamically partitions the chip area and assigns tasks to optimize resource utilization without manual intervention.
Solution Approach 2:
The scheduling system automatically manages task partitioning, bounding box calculation, and parallel execution without requiring external control. The system self-regulates to maintain optimal productivity while managing complexity through automated geometric reach-based task separation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables almost 100% utilization of computing resources while maintaining circuit performance within error tolerance, reducing power consumption and optimizing the design of superconducting circuits.
Implementation Method 1
utilizing zero-resistance wires with target inductance
Implementation Method 2
zero-resistance wires with target inductance
Data Source
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AI summary
Systems and methods related to scheduling of tasks for execution in parallel based on geometric reach are described. An example method includes processing information pertaining to connectivity among superconducting components and nodes included in a shared floor plan to generate a plurality of areas of reach, where each of the plurality of areas of reach corresponds to a portion of the shared floor plan. The method further includes generating a plurality of inflated areas of reach by inflating each of the plurality of areas of reach based on a target inductance of wires for routing signals among the superconducting components and the nodes included in the shared floor plan. The method further includes scheduling parallel execution of tasks for routing wires among a subset of the superconducting components and the nodes within any of the plurality of inflated areas of reach satisfying a geometric constraint.