TREAD: Token Routing for Efficient Architecture-agnostic Diffusion Training

• URL: http://arxiv.org/abs/2501.04765v1
• Date: Wed, 08 Jan 2025 18:38:25 GMT
• Title: TREAD: Token Routing for Efficient Architecture-agnostic Diffusion Training
• Authors: Felix Krause, Timy Phan, Vincent Tao Hu, Björn Ommer,
• Abstract summary: This work aims to improve the training efficiency of the diffusion backbone by using predefined routes that store this information until it is reintroduced to deeper layers of the model.<n>Unlike most current approaches, TREAD achieves this without architectural modifications.<n>We show that our method reduces the computational cost and simultaneously boosts model performance on the standard benchmark ImageNet-1K 256 x 256 in class-conditional synthesis.
• Score: 23.54555663670558
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Diffusion models have emerged as the mainstream approach for visual generation. However, these models usually suffer from sample inefficiency and high training costs. This issue is particularly pronounced in the standard diffusion transformer architecture due to its quadratic complexity relative to input length. Recent works have addressed this by reducing the number of tokens processed in the model, often through masking. In contrast, this work aims to improve the training efficiency of the diffusion backbone by using predefined routes that store this information until it is reintroduced to deeper layers of the model, rather than discarding these tokens entirely. Further, we combine multiple routes and introduce an adapted auxiliary loss that accounts for all applied routes. Our method is not limited to the common transformer-based model - it can also be applied to state-space models. Unlike most current approaches, TREAD achieves this without architectural modifications. Finally, we show that our method reduces the computational cost and simultaneously boosts model performance on the standard benchmark ImageNet-1K 256 x 256 in class-conditional synthesis. Both of these benefits multiply to a convergence speedup of 9.55x at 400K training iterations compared to DiT and 25.39x compared to the best benchmark performance of DiT at 7M training iterations.

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