The International Conference for High Performance Computing, Networking, Storage, and Analysis
The International Conference for High Performance Computing, Networking, Storage, and Analysis
Workshop:11th International Workshop on Runtime and Operating Systems for Supercomputers ROSS
Authors: John Lange and Nicholas Gordon (University of Pittsburgh) and Brian Gaines (Sandia National Laboratories)
Abstract: Next generation supercomputers are expected to greatly expand the scope of HPC environments with diverse workloads and user bases and the integration of edge infrastructures. This will require new mechanisms and approaches at the Operating System level to support these broader classes of workloads. We claim that a necessary mechanism will be the ability to securely compartmentalize a node's system software. In this paper, we present initial efforts in integrating secure and trusted computing capabilities into an HPC system software stack. As part of this work we have ported the Kitten Lightweight Kernel to the ARM64 architecture and integrated it with the Hafnium hypervisor, a secure partition manager that provides security isolation for virtual machines. By integrating Kitten with Hafnium, we are able to replace the commodity oriented Linux based resource management infrastructure and reduce the overheads introduced by using a full weight kernel (FWK) as the node-level resource scheduler.