Topology-Aware Communication Optimization

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Authors: Jonas Sieberer
Cited by: 1

Abstract

Topology-Aware Communication Optimization for OpenFOAM This repository provides an OpenFOAM-12 utility for topology-aware communication optimization in parallel CFD simulations on NUMA-based HPC systems. The tool improves communication performance by: - Optimizing MPI rank-to-core placement based on the communication graph induced by the mesh decomposition- Introducing a hierarchical global reduction schedule aligned with the hardware topology

Publication details

Journal / source
Zenodo (CERN European Organization for Nuclear Research)
Publication date
1 April 2026