Chiplet Voltage Regulator Event Prioritization by Power State
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Solution Overview
Problem
In computing systems with multiple chiplets operating at different voltages, existing communication protocols between chiplets and voltage regulators lead to inefficiencies and increased power consumption due to unnecessary wake-ups and dependencies.
Innovation Solution
Implementing a chiplet state-aware and dynamic prioritization scheme for voltage regulator event handling, using an intelligent arbiter that considers factors like chiplet state, power consumption, and transition time to optimize notification order and minimize power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If communication channels are shared between chiplets and voltage regulators, then device complexity is reduced, but power consumption increases and efficiency decreases
Solution Approach 1:
The system implements dynamic prioritization where the arbiter adjusts notification priorities based on real-time chiplet states. Active chiplets receive high priority notifications while sleeping chiplets receive low priority or deferred notifications, dynamically optimizing power consumption based on operational requirements
Solution Approach 2:
The arbiter changes the parameter of notification timing and priority based on chiplet state. By monitoring whether chiplets are active or sleeping, the system adjusts when and how notifications are sent, reducing unnecessary wake-ups and optimizing power usage while maintaining communication functionality
2Device complexity
If communication channels are shared between chiplets and voltage regulators, then device complexity is reduced, but efficiency decreases
Solution Approach 1:
The arbiter implements dynamic prioritization that adapts to real-time system conditions. By continuously assessing chiplet states and adjusting notification priorities accordingly, the system maximizes throughput and efficiency despite using shared communication channels
Solution Approach 2:
The system incorporates feedback mechanisms where the arbiter monitors chiplet states and uses this information to make intelligent decisions about notification prioritization. This feedback loop ensures that communication resources are allocated efficiently based on actual system needs
3Reliability
If chiplets are notified of voltage regulator events regardless of state, then reliability is improved, but power consumption increases
Solution Approach 1:
The system applies different notification strategies to different chiplet states. Active chiplets receive immediate high-priority notifications ensuring reliability, while sleeping chiplets receive deferred or low-priority notifications, creating localized optimization based on operational state
Solution Approach 2:
The notification parameters (timing, priority, delivery method) are changed based on chiplet state. This allows the system to maintain reliability for active chiplets while reducing power consumption by adjusting or deferring notifications to sleeping chiplets
Data Source
AI summary
Embodiments described herein may include apparatus, systems, techniques or processes that are directed to chiplet state aware and dynamic prioritization of voltage regulator event indication handling. An intelligent arbiter notifies chiplets of VR events in a dynamic priority scheme that considers multiple factors such as chiplet state (for example, active, sleep, deep sleep, and the like), chiplet power consumption and time frame for transitioning to an active state, outstanding VR requests, chiplet latency sensitivity and the like in its prioritization of chiplet notifications. As chiplet states themselves are dynamic with a chiplet transitioning between multiple states during operation, the intelligent arbiter may also utilize a dynamic prioritization scheme to maximize efficiency and minimize power consumption.