[2606.26383] SOLAR: AI-Powered Speed-of-Light Performance Analysis

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arXiv:2606.26383 (cs)

[Submitted on 24 Jun 2026]

Title:SOLAR: AI-Powered Speed-of-Light Performance Analysis

Authors:Qijing Huang, Sana Damani, Zhifan Ye, Athinagoras Skiadopoulos, Siva Kumar Sastry Hari, Jason Clemons, Sahil Modi, Jingquan Wang, Aditya Kane, Edward C Lin, Humphrey Shi, Christos Kozyrakis<br>View a PDF of the paper titled SOLAR: AI-Powered Speed-of-Light Performance Analysis, by Qijing Huang and 11 other authors

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Abstract:How fast could a deep-learning model run on target hardware, and how far is today's implementation from that limit? These questions are central to software, hardware, and algorithm optimizations. Speed-of-Light (SOL) analysis answers them by computing a workload's theoretical minimum execution time on a given architecture. Yet deriving SOL bounds remains manual, error-prone, and disconnected from rapid model development. To close this gap, we introduce SOLAR, a framework that automatically derives validated SOL bounds from PyTorch and JAX source code. SOLAR leverages both generative and deterministic components in its flow: an LLM frontend translates any source programs into an executable Affine Loop IR, validated by output comparison; a deterministic flow lifts the IR into an einsum graph; and an analytical backend computes unfused, fused, and cache-aware SOL bounds. SOLAR provides comprehensive operator and language coverage, produces validated bounds with zero observed SOL violations, and offers multi-fidelity analysis that tightens bounds and surfaces optimization insights. We evaluate SOLAR across KernelBench, JAX/Flax models, and robotics workloads. These experiments demonstrate four use cases: headroom analysis at multiple fidelity levels, identifying optimization opportunities, cross-platform exploration, and inverse-roofline hardware provisioning.

Subjects:

Machine Learning (cs.LG); Artificial Intelligence (cs.AI); Hardware Architecture (cs.AR); Multiagent Systems (cs.MA); Performance (cs.PF)

Cite as:<br>arXiv:2606.26383 [cs.LG]

(or<br>arXiv:2606.26383v1 [cs.LG] for this version)

https://doi.org/10.48550/arXiv.2606.26383

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arXiv-issued DOI via DataCite

Submission history<br>From: Qijing Huang [view email]<br>[v1]<br>Wed, 24 Jun 2026 21:09:29 UTC (193 KB)

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