Dual-Threshold CAD Framework for Subthreshold Leakage Power Aware FPGAs
Bibliographic record
Abstract
Managing leakage power in field programmable gate arrays (FPGAs) has become critical for the FPGA industry to remain competitive in the semiconductor market and enter the mobile applications domain. This paper proposes and evaluates several dual-Vt-based designs of FPGA architecture for reducing the leakage power. A dual-Vt FPGA computer-aided design (CAD) framework has been proposed, which is used to develop and evaluate different dual-Vt FPGA architectures. The logic elements and the routing resources are considered as candidates for dual-Vt assignment. The authors estimate the number of the logic elements that can be assigned as high-Vt in the ideal case by using a dual-Vt assignment algorithm in the CAD framework. Based upon this estimate, the authors develop and evaluate two kinds of architectures, homogenous and heterogenous. The results indicate that an average leakage-power savings of up to 50% can be obtained from these architectures. This CAD framework can also be used for developing and evaluating different dual-Vt FPGA architectures other than the ones proposed in this paper
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
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".