We present the embedding of ULM [7] in Scheme and an implementation of a compiler and virtual machine for it. ULM is a core programming model that allows multi-threaded and distributed programming via strong mobility with a deterministic semantics. We present the multi-threading and distributed primitives of ULM step by step using examples. The introduction of mobility in a Scheme language rais...

Earlier virtual machine (VM) migration techniques consisted of stop-and-copy: the VM was stopped, its address space was copied to a different physical machine, and the VM was restarted at that machine. Recent VM hypervisors support live VM migration, which allows pages to be copied while the VM is running. If any copied page is dirtied (i.e., modified), it has to be copied again. The process st...

Parallel Virtual Machine (PVM) is a widely-used software system that allows a heterogeneous set of parallel and serial UNIX-based computers to be programmed as a single message-passing parallel machine. In this paper, an extension to PVM to support dynamic process migration is presented. Support for migration is important in general-purpose workstation environments since it allows parallel comp...

Cluster platforms, deployed in data centers worldwide, are the backbone of the popular cloud computing services. For scalability, manageability and resource utilization, one physical machine in the cloud platform can be virtualized into a bundle of virtual machines (VMs). Each VM works as an independent node. To solve a time consuming task, several VMs are grouped as a virtual cluster and colla...

The issue of management and allocation of resources in cloud computing environments, according to the breadth of scale and modern technology implementation, is a complicated issue. Issues such as: the heterogeneity of resources, resource dependencies to each other, the dynamics of the environment, virtualization, workload diversity as well as a wide range of management objectives of cloud servi...

Managing Cloud resources e ciently necessitates e ective policies that assign applications to hardware in a way that they require the least resources possible. Applications are rst assigned to virtual machines which are subsequently placed on the most appropriate server host. If a server becomes overloaded, some of its virtual machines are reassigned. This process requires a hotspot detection m...

Past research in virtualisation technology has mainly focused on increasing isolation of co-resident virtual machines. At the same time network intensive applications, such as web services or database applications are being consolidated onto a single physical platform. The isolation properties of virtualisation, however, demand a strict separation of the shared resources. Co-resident virtual ma...

With the emergence of cloud computing, computing resources (i.e., networks, servers, storage, applications, and services) are provisioned as metered on-demand services over networks, and can be rapidly allocated and released with minimal management effort. In the cloud computing paradigm, the virtual machine is one of the most commonly used resource carriers in which business services are encap...

VM Migration for Autonomic Fault Tolerance provides the continuous availability for applications in the event of virtual machine failures along with the benefits of improved performance and manageability. Multipath correlation coefficient approach for VM migration has been proposed, which takes into account the overutilization of CPU without performance degradation based on work variability. Th...

Virtual Machines need migration from the present host to an another appropriate one due to error in the present hardware or presently loaded scenario causing slowness of execution. Most of the situations fall into second category leading to a solution called live migration. Here, in live migration the virtual machine runs for sometime on the present host while its required data gets transferred...