Picasso: An Area/Energy-Efficient End-to-End Diffusion Accelerator with Hyper-Precision Data Type
Bibliographic record
Abstract
This work presents Picasso, an end-to-end diffusion accelerator designed for enhancing the efficiency of diffusion-based machine learning models used in applications such as image and video generation, and inpainting. Picasso introduces a novel hyper-precision 8 (HYP8) data type and a reconfigurable architecture designed to significantly enhance hardware efficiency, providing an extended dynamic range without sacrificing accuracy. It also features a unified engine that streamlines the processing of all non-matrix operations and employs sub-block pipeline scheduling to reduce overall latency. Fabricated in 28nm CMOS technology, this accelerator achieves an energy efficiency of 4.96 TOPS/W and a peak performance of 9.83 TOPS. Compared to previous works, Picasso demonstrates speedups ranging from 8.4× to 26.8× while also improving energy and area efficiency by 1.1× to 2.8× and 3.6× to 30.5×, respectively.
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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 | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.007 | 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".