communication

Balancing Communication and Computation in Distributed Optimization

  • Albert S. Berahas
  • Raghu Bollapragada
  • Nitish Shirish Keskar
  • Ermin Wei
    • Categories Convex Optimization, Distributed Control, Network Optimization Tags , , , ,

    Methods for distributed optimization have received significant attention in recent years owing to their wide applicability in various domains including machine learning, robotics and sensor networks. A distributed optimization method typically consists of two key components: communication and computation. More specifically, at every iteration (or every several iterations) of a distributed algorithm, each node in … Read more

    Using diversification, communication and parallelism to solve mixed-integer linear programs

  • Shabbir Ahmed
  • Rodolfo Carvajal
  • Kevin C Furman
  • George L. Nemhauser
  • Vikas Goel
  • Yufen Shao
    • Categories (Mixed) Integer Linear Programming, Optimization Software and Modeling Systems, Parallel Algorithms Tags , , , , ,

    Performance variability of modern mixed-integer programming solvers and possible ways of exploiting this phenomenon present an interesting opportunity in the development of algorithms to solve mixed-integer linear programs (MILPs). We propose a framework using multiple branch-and-bound trees to solve MILPs while allowing them to share information in a parallel execution. We present computational results on … Read more