Hash Board Frequency Sweeping for Temperature-Balanced Chip Domains
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Solution Overview
Problem
Existing hash boards face issues of resource waste and imbalanced performance due to uniform frequency operation of chips, which is affected by varying temperatures across the board, leading to inefficient computing power utilization.
Innovation Solution
A frequency sweeping method that adjusts chip operating frequencies to exhibit a descending linear relationship, starting with a target frequency and progressively reducing voltage to determine a limit voltage, followed by calculating a frequency adjustment function to set frequencies based on temperature distribution, ensuring the chip domain at the air inlet has the lowest frequency and the air outlet has the highest frequency while maintaining an average operating frequency equal to the target frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If all chips operate at the same frequency, then the system is simple to control, but resource waste and imbalanced performance occur due to temperature variations
Solution Approach 1:
The patent applies local quality by assigning different operating frequencies to different chip domains based on their temperature characteristics. Chips near the air inlet (cooler) operate at lower frequencies, while chips near the air outlet (hotter) operate at higher frequencies. This localized frequency adjustment optimizes each chip's performance according to its thermal environment, resolving the contradiction between simple uniform control and efficient resource utilization.
2Productivity
If frequency is increased to maximize computing power, then processing speed improves, but temperature rises which reduces chip reliability
Solution Approach 1:
The patent changes the frequency parameter dynamically based on temperature conditions. Instead of using a fixed high frequency that would cause overheating, the system adjusts frequency values according to each chip's thermal state. This parameter adaptation allows the system to maintain high processing speeds where cooling is effective while reducing frequencies in hotter regions, thereby preserving chip reliability.
3Ease of manufacture
If uniform frequency is applied across all chip domains, then manufacturing and control are simplified, but performance imbalance occurs due to temperature gradients
Solution Approach 1:
The patent introduces dynamics into the frequency control system by making frequencies adjustable based on temperature measurements. The control system transitions from a static uniform frequency approach to a dynamic differentiated approach, where frequencies are automatically adjusted according to real-time thermal conditions. This dynamic adaptation maintains manufacturing simplicity while achieving balanced performance across the chip array.
Data Source
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AI summary
A frequency sweeping method for a hash board includes: applying an initial voltage to the hash board to power on the hash board, and controlling chips in all chip domains to operate at a target frequency; switching each of the chips to a SPAT mode while maintaining the chip at the target frequency, and progressively reducing a voltage of the hash board; calculating a nonce response rate of the chip; and in a case where the nonce response rate of the chip is less than a predetermined threshold, determining a previous voltage level corresponding to the nonce response rate as a limit voltage of the hash board under the target frequency; maintaining each of the chips at the limit voltage, and calculating a frequency adjustment function of the hash board.