In this paper a methodology for parallelizing neural network training algorithms is described, based on the parallel evaluation of the error function and gradient using the Parallel Virtual Machine (PVM). PVM is an integrated set of software tools and libraries that emulates a general–purpose, flexible, heterogeneous concurrent computing framework on interconnected computers of varied architect...

A Migratable User-Level Process Package for PVM Ravindranath Bala Konuru Oregon Graduate Institute of Science & Technology Supervising Professors: Steve Otto and Jonathan Walpole This dissertation studies an approach to supporting e cient processor virtualization and dynamic load balancing for message-based, parallel programs. We propose the User-Level Process (ULP) abstraction that can be used...

Message passing libraries such as Parallel Virtual Machine (PVM) and Message Passing Interface (MPI) provide a common Application Programming Interface (API) to implement parallel programs across multiple computers. Such libraries provide a means to program a collection of normally independent computers to work cooperatively on a single computation. However, for programs written in C and Fortra...

Abstract The paper presents the experience of porting the PVM message-passing environment to EMMA2E, an industrial, shared-memory multiprocessor architecture. The work is still ongoing in the framework of the ESPRIT "EUROPORT2" project, aiming to demonstrate practical availability of portable parallel applications with related industrial and commercial benefits. The project framework, the EMMA2...

PVM (Parallel Virtual Machine) is a popular standard for writing parallel programs so that they may execute over a network of heterogeneous machines. This paper presents some performance results of PVM on three massively parallel processing systems: the Thinking Machines CM-5, the Intel Paragon, and the IBM SP-2. We describe the basics of the communication model of PVM and its communication rou...

This paper evaluates network distributed computing performance in PVM environment. The paper points out that essential difference between network computing and MPP computing in PVM environment is their communication behaviours, the former is sequential and the latter concurrent. An uniform formula for system performance evaluation has been derived to cover those two major parallel processing sy...

PVM and MPI are often compared These comparisons usu ally start with the unspoken assumption that PVM and MPI represent di erent solutions to the same problem In this paper we show that in fact the two systems often are solving di erent problems In cases where the problems do match but the solutions chosen by PVM and MPI are di erent we explain the reasons for the di erences Usually such di er ...

In this paper we present Lbs, a load-management-system for network based concurrent computing. The system is built on Pt-Pvm, a library based on the PVM system. Pt-Pvm provides message passing and process management facilities at thread and process level for a cluster of workstations running the UNIX operating system. The presented system is realized as an open library which can be easily used ...

A technique has been devised for obtaining free or uncombined pneumonia virus of mice (PVM). Free PVM, liberated from infected mouse lungs by means of this technique, is infectious and causes hemagglutination directly. The results of quantitative studies carried out in the high speed angle centrifuge indicate that the free virus is relatively small, with dimensions of the order of 40 millimicro...

PVM and MPI are often compared. These comparisons usually start with the unspoken assumption that PVM and MPI represent diierent solutions to the same problem. In this paper we show that, in fact, the two systems often are solving diierent problems. In cases where the problems do match but the solutions chosen by PVM and MPI are diierent, we explain the reasons for the diierences. Usually such ...