The increasing number of clusters built by commercial, o the shelf hardware shows a new trend in scienti c computing. Within this movement is the propagation towards Windows NT (tm) as an operating system on PCs. The UNIX environment and Windows NT di er in terms of administrative issues as well as programming techniques. In this paper, we describe the modi cation of PVM (Parallel Virtual Machi...

Pneumonia Virus of Mice (PVM) is related to the human and bovine respiratory syncytial virus (RSV) pathogens, and has been used to study respiratory virus replication and the ensuing inflammatory response as a component of a natural host—pathogen relationship. As such, PVM infection in mice reproduces many of the clinical and pathologic features of the more severe forms of RSV infection in huma...

We propose a new architecture and its implementation called PVMWebCluster which enables easy parallelization of PVM task execution both onto geographically distributed PVM clusters and within them. Task submission is done by calling Web services that negotiate the best cluster(s) for the task and communicate with clusters via CORBA method invocation. PVMWebCluster supports tightly-coupled high ...

This paper describes the advances obtained with the XPVM-W95 2.0, a novel monitoring tool for parallel applications that employ PVM-W95 (PVM for Windows) as well as PVM for Linux. The tool provides, at runtime, the appropriate information about parallel virtual machine configuration, parallel applications and workload from each node. The three more important aspects of the XPVM-W95 are: friendl...

Preexisting infection with PVM or mumps virus does not prevent multiplication of the virus of influenza A or B in the same tissue. Similarly, pre-existing infection with one or another of the influenza viruses does not prevent multiplication of either PVM or mumps virus in the same tissue. The failure of these two groups of viruses to interfere with the multiplication of each other is discussed...

Sciddle 4.0 makes it possible to use remote procedure calls (RPCs) within the PVM environment. Parallelism is achieved through asynchronous RPCs. No explicit message passing is necessary. Rather all data transfers occur within the RPCs. In Sciddle, an application is decomposed into a client process and an arbitrary number of server processes. Servers are special PVM tasks that are ready to exec...

This report describes PVMGraph, a graphical programming environment to support the design and implementation of parallel applications. PVMGraph offers a simple but yet expressive graphical representation for the components of a parallel application and assists the user in manipulating these components. PVMGraph also allows the evaluation of the application design and implementation. Although, P...

In order to solve the problem of the performance decrease when state-of-art automatic speech recognition (ASR) system facing accent speech, we propose the Pronunciation Variation Model (PVM). Two approaches are proposed to construct the PVM in this paper. 6.38% and 7.78% relative error rate reduction is achieved for Shanghai and Wuhan accent mandarin, respectively. The experiment on these two t...

In this paper we discuss the design and implementation of an I/O interface for parallel programming environments on clusters of workstations. The PFSLib library offers the functionality of Intel’s parallel file system PFS and is intended to be used for parallel applications using PVM or other messagepassing libraries for workstation clusters. An example of a simple parallel matrix-vector-multip...

This report describes the design and implementation of a syntax-compatible version of the PVM parallel processing tool for the RHODOS distributed operating system. The implementation of the Unix version of the tool is examined in detail, and the design of the tool for RHODOS is presented with a discussion of issues raised by the introduction of a distributed operating system. PVM on the RHODOS ...