OpenInfra: A Co-simulation Framework for the Infrastructure Nexus

Abstract

Critical infrastructures like datacenters, power grids, and water systems are interdependent, forming complex “infrastructure nexuses” that require co-optimization for efficiency, resilience, and sustainability. We present OpenInfra, a co-simulation framework designed to model these interdependencies by integrating domain-specific simulators for datacenters, power grids, and cooling systems but focusing on stitching them together for end-to-end experimentation. OpenInfra enables seamless integration of diverse simulators and flexible configuration of infrastructure interactions. Our evaluation demonstrates its ability to simulate large-scale infrastructure dynamics, including 7,392 servers over 100+ hours.