On the O(1=k) convergence of asynchronous distributed alternating Direction Method of Multipliers

Ermin Wei, Asuman Ozdaglar
2013 2013 IEEE Global Conference on Signal and Information Processing  
We consider a network of agents that are cooperatively solving a global optimization problem, where the objective function is the sum of privately known local objective functions of the agents and the decision variables are coupled via linear constraints. Recent literature focused on special cases of this formulation and studied their distributed solution through either subgradient based methods with O(1/ √ k) rate of convergence (where k is the iteration number) or Alternating Direction Method
more » ... ng Direction Method of Multipliers (ADMM) based methods, which require a synchronous implementation and a globally known order on the agents. In this paper, we present a novel asynchronous ADMM based distributed method for the general formulation and show that it converges at the rate O (1/k).
doi:10.1109/globalsip.2013.6736937 dblp:conf/globalsip/WeiO13 fatcat:dxnwzzx63fectl4uru2js4phje