A distributed augmented Lagrangian decomposition algorithm for constrained optimization

Fuente: arXiv
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Main Authors: Guo, Wenyou, Qu, Ting, Huang, Hainan, Wei, Yafeng
Format: Preprint
Published: 2025
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author Guo, Wenyou
Qu, Ting
Huang, Hainan
Wei, Yafeng
author_facet Guo, Wenyou
Qu, Ting
Huang, Hainan
Wei, Yafeng
contents Within the framework of the augmented Lagrangian (AL), we propose a novel distributed optimization method, termed Distributed Augmented Lagrangian Decomposition (DALD), and provide a rigorous convergence proof for its standard version. To address the high iteration costs in early stages, we propose several accelerated variants of DALD that enhances efficiency without compromising theoretical guarantees, supported by a comprehensive convergence analysis. To facilitate the description of the distributed optimization process, the concept of hierarchical coordination networks is introduced, integrating hierarchical matrix concepts to aid in this explanation. We further explore and expand the applicability of the DALD method and demonstrate how it unifies existing distributed optimization theories within the AL framework. The effectiveness and applicability of the proposed distributed optimization method and its variants are further validated through numerical experiments.
format Preprint
id arxiv_https___arxiv_org_abs_2508_04960
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A distributed augmented Lagrangian decomposition algorithm for constrained optimization
Guo, Wenyou
Qu, Ting
Huang, Hainan
Wei, Yafeng
Optimization and Control
Within the framework of the augmented Lagrangian (AL), we propose a novel distributed optimization method, termed Distributed Augmented Lagrangian Decomposition (DALD), and provide a rigorous convergence proof for its standard version. To address the high iteration costs in early stages, we propose several accelerated variants of DALD that enhances efficiency without compromising theoretical guarantees, supported by a comprehensive convergence analysis. To facilitate the description of the distributed optimization process, the concept of hierarchical coordination networks is introduced, integrating hierarchical matrix concepts to aid in this explanation. We further explore and expand the applicability of the DALD method and demonstrate how it unifies existing distributed optimization theories within the AL framework. The effectiveness and applicability of the proposed distributed optimization method and its variants are further validated through numerical experiments.
title A distributed augmented Lagrangian decomposition algorithm for constrained optimization
topic Optimization and Control
url https://arxiv.org/abs/2508.04960