Steven Hofmeyr

Time-Sharing Redux for Large-Scale HPC Systems

2016

HPC facilities typically use batch scheduling to space-share jobs. In this paper we revisit time-sharing using a trace of over 2.4 million jobs obtained during 20 months of operation of a modern petascale supercomputer. Our …

Power Consumption Models for Multi-Tenant Server Infrastructures

2017 · ACM Transactions on Architecture and Code Optimization

Multi-tenant virtualized infrastructures allow cloud providers to minimize costs through workload consolidation. One of the largest costs is power consumption, which is challenging to understand in heterogeneous environments. We propose a power modeling methodology that …