Section: New Results

Topology Aware Resource Management

SLURM is a Resource and Job Management System, a middleware in charge of delivering computing power to applications in HPC systems. Our goal is to take in account in SLURM placement process hardware topology but application communication pattern too. We have a new [9], [19] selection option for the cons_res plugin in SLURM. In this case the usually best_fit algorithm used to choose nodes is replaced by TreeMatch, an algorithm to find the best placement among the free nodes list in light of a given application communication matrix. We plan to release this work in the next release SLURM 17.02.

Fragmentation in cluster is one of the criteria important for administrator. Indeed, the way jobs are allocated impacts the global resource usage. Usually it is observed throught utilization of a cluster for a fixed load rate, but no metrics dedicated to fragmentation exist in litterature. Hence we construct several metrics to measure it. Our goal is to study the impact of our selection algorithm on fragmentation in comparison with other.