VHPC 2018 - 13th Workshop on Virtualization in High-Performance Cloud Computing (VHPC'18)

Virtualization technologies constitute a key enabling factor for flexible resource
management in modern data centers, and particularly in cloud environments.
Cloud providers need to manage complex infrastructures in a seamless fashion to support
the highly dynamic and heterogeneous workloads and hosted applications customers
deploy. Similarly, HPC environments have been increasingly adopting techniques that
enable flexible management of vast computing and networking resources, close to marginal
provisioning cost, which is unprecedented in the history of scientific and commercial
computing.
Various virtualization technologies contribute to the overall picture in different ways: machine
virtualization, with its capability to enable consolidation of multiple under-utilized servers with
heterogeneous software and operating systems (OSes), and its capability to live--migrate a
fully operating virtual machine (VM) with a very short downtime, enables novel and dynamic
ways to manage physical servers; OS-level virtualization (i.e., containerization), with its
capability to isolate multiple user-space environments and to allow for their co-existence
within the same OS kernel, promises to provide many of the advantages of machine
virtualization with high levels of responsiveness and performance; I/O Virtualization allows
physical network interfaces to take traffic from multiple VMs or containers; network virtualization,
with its capability to create logical network overlays that are independent of the underlying
physical topology is furthermore enabling virtualization of HPC infrastructures.