Toward Reproducible Cross-Backend Compatibility for Deep Learning: A Configuration-First Framework with Three-Tier Verification

• URL: http://arxiv.org/abs/2509.06977v1
• Date: Fri, 29 Aug 2025 16:28:28 GMT
• Title: Toward Reproducible Cross-Backend Compatibility for Deep Learning: A Configuration-First Framework with Three-Tier Verification
• Authors: Zehua Li,
• Abstract summary: This paper presents a configuration-first framework for evaluating cross-backend compatibility in deep learning systems.<n>The framework decouples experiments from code using YAML, supports both library and repository models, and employs a three-tier verification protocol.<n>We observe that 72.0% of runs pass, with most discrepancies occurring under stricter thresholds.
• Score: 1.5269986601063288
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper presents a configuration-first framework for evaluating cross-backend compatibility in deep learning systems deployed on CPU, GPU, and compiled runtimes. The framework decouples experiments from code using YAML, supports both library and repository models, and employs a three-tier verification protocol covering tensor-level closeness, activation alignment, and task-level metrics. Through 672 checks across multiple models and tolerance settings, we observe that 72.0% of runs pass, with most discrepancies occurring under stricter thresholds. Our results show that detection models and compiled backends are particularly prone to drift, often due to nondeterministic post-processing. We further demonstrate that deterministic adapters and selective fallbacks can substantially improve agreement without significant performance loss. To our knowledge, this is the first unified framework that systematically quantifies and mitigates cross-backend drift in deep learning, providing a reproducible methodology for dependable deployment across heterogeneous runtimes.

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