On a Virtual Shared Memory Cluster System with Virtual Machines

Performance Considerations of Shared Virtual Memory Machines

Generalized speedup is deened as parallel speed over sequential speed. In this paper the generalized speedup and its relation with other existing performance metrics, such as traditional speedup, eeciency, scalability, etc., are carefully studied. In terms of the introduced asymptotic speed, we show that the diierence between the generalized speedup and the traditional speedup lies in the deeni...

Implementing Transparent Shared Memory on Clusters Using Virtual Machines

Shared memory systems, such as SMP and ccNUMA topologies, simplify programming and administration. On the other hand, clusters of individual workstations are commonly used due to cost and scalability considerations. We have developed a virtual-machine-based solution, dubbed vNUMA, that seeks to provide a NUMA-like environment on a commodity cluster, with a single operating system instance and t...

Noa: a Shared Virtual Memory over a Sci Cluster

| This paper presents the implementation of a Shared Virtual Memory (SVM) over a SCI cluster. We explain concepts of memory consistency and associated coherence protocols and we give a detailed overview the Lazy Release Consistency protocol. Then we describe our user level implementation of this protocol over SCI through a message-passing layer and the SVM itself. Finally, we analyze results of...

MultiJav: A Distributed Shared Memory System Based on Multiple Java Virtual Machines

Current distributed shared memory systems suuer from portability problems which hinder popularity. We present a distributed shared memory system as a distributed implementation of the Java Virtual Machine. The proposed system is unique in that it provides a user-friendly, exible programming model based on pure Java. It is an object-based memory system which maintains the synchronization scope a...

Shared Virtual Memory: a Survey