The use of virtualisation technology on modern standard PC hardware has become popular in the recent years. This paper presents the VM-FIT architecture, which uses virtualisation for realising fault and intrusion tolerant networkbased services. The VM-FIT infrastructure intercepts the client–service interaction at the hypervisor level, below the guest operating system that hosts a service imple...

Allowing a guest to have direct, privileged access to hardware can enhance its performance and functionality. Privileged access to hardware and the VMM also enables and improves the performance of virtualization services by allowing portions of their implementations to be hoisted into the guest, even uncooperatively. However, granting such privilege currently requires that the entire guest be t...

This study offers a detailed mechanistic investigation of host-guest encapsulation behavior in a new enzyme-mimetic metal-ligand host and provides the first observation of a conformational selection mechanism (as opposed to induced fit) in a supramolecular system. The Ga4L4 host described features a C3-symmetric ligand motif with meta-substituted phenyl spacers, which enables the host to initia...

Security requirements in the cloud have led to the development of new monitoring techniques that can be broadly categorized as virtual machine introspection (VMI) techniques. VMI monitoring aims to provide high-fidelity monitoring while keeping the monitor secure by leveraging the isolation provided by virtualization. This work shows that not all hypervisor activity is hidden from the guest vir...

Nanoporous host materials giving rise to transient guest profiles of cylindrical symmetry during molecular uptake and release are shown to provide particularly advantageous conditions for the study of guest diffusion by micro-imaging. Considering zeolites of structure type DDR (Deca-dodecasil 3R) as a host system and short-chain length hydrocarbons as guest molecules, the benefits thus attainab...

A multiprocessor virtual machine benefits its guest operating system in supporting scalable job throughput and request latency—useful properties in server consolidation where servers require several of the system processors for steady state or to handle load bursts. Typical operating systems, optimized for multiprocessor systems in their use of spin-locks for critical sections, can defeat flexi...

This report presents a novel strategy that facilitates delivery of multiple, specific payloads of Pt(IV) prodrugs using a well-defined supramolecular system. This delivery system comprises a hexanuclear Pt(II) cage that can host four Pt(IV) prodrug guest molecules. Relying on host-guest interactions between adamantyl units tethered to the Pt(IV) molecules and the cage, four prodrugs could be en...

This report presents a novel strategy that facilitates delivery of multiple, specific payloads of Pt(IV) prodrugs using a well-defined supramolecular system. This delivery system comprises a hexanuclear Pt(II) cage that can host four Pt(IV) prodrug guest molecules. Relying on host–guest interactions between adamantyl units tethered to the Pt(IV) molecules and the cage, four prodrugs could be en...

The importance of heterogeneous multicore programming is increasing, and Open Computing Language (OpenCL) is an open industrial standard for parallel programming that provides a uniform programming model for programmers to write efficient, portable code for heterogeneous computing devices. However, OpenCL is not supported in the system virtualization environments that are often used to improve ...

This thesis presents a two-level approach to energy accounting in virtual machine environments. Instead of accounting the energy consumption of the hardware directly to the applications, as done by previous approaches, we account it to virtual machines. Each guest operating system can then obtain the energy consumption of the virtual machine and split it between its applications. Thus, energy m...