Bibliographic record
Abstract
We consider circuit techniques for reducing field-programmable gate-array (FPGA) power consumption and propose a family of new FPGA routing switch designs that are programmable to operate in three different modes: high-speed, low-power, or sleep. High-speed mode provides similar power and performance to traditional FPGA routing switches. In low-power mode, speed is curtailed in order to reduce power consumption. Leakage is reduced by 28%-52% in low-power versus high-speed mode, depending on the particular switch design selected. Dynamic power is reduced by 28%-31% in low-power mode. Leakage power in sleep mode, which is suitable for unused routing switches, is 61%-79% lower than in high-speed mode. Each of the proposed switch designs has a different power/area/speed tradeoff. All of the designs require only minor changes to a traditional routing switch and involve relatively small area overhead, making them easy to incorporate into current commercial FPGAs. The applicability of the new switches is motivated through an analysis of timing slack in industrial FPGA designs. It is observed that a considerable fraction of routing switches may be slowed down (operate in low-power mode), without impacting overall design performance.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".