The first public release of PVM was version 2.0 in February 1991; the first PVM release from Oak Ridge National Laboratory that supported the Windows operating system was version 3.4 (beta 5) at the end of 1997 and then with the formal release of PVM version 3.4.0 in January 1999. While this initial release provided the PVM framework and functionality to the Windows world, there were a number o...

This paper describes an extension to the PVM message passing library. PTPVM provides message passing and process management facilities at thread level for a cluster of workstations running the UNIX operating system without changing the PVM system. In the first place these extensions are used to implement the Coordination Language COLA which is used to model the behavior of processes in a massiv...

We are currently developing a parallel database system that exploits PVM as communication platform. In this paper we describe the communication characteristics of this application and specify to which extent PVM innuences the overall performance of our system. Our experiences with PVM are shown, advantages and some shortcomings are summarized, and hints for eeciently implementing applications w...

Enhanced disease is the term used to describe the aberrant Th2-skewed responses to naturally acquired human respiratory syncytial virus (hRSV) infection observed in individuals vaccinated with formalin-inactivated viral Ags. Here we explore this paradigm with pneumonia virus of mice (PVM), a pathogen that faithfully reproduces features of severe hRSV infection in a rodent host. We demonstrate t...

Although PVM was developed to use a network of heterogeneous UNIX computers as a single large parallel computer, it has become an interface for portable programming even on MPP's. We present PVM performance results for a massively parallel transputer system with up to 512 processors. In comparison to an implementation of the same application in the native transputer operating system Parix, we r...

Is PVM in Windows environments viable? This paper shows that the answer is yes! Furthermore, besides being viable as an alternative platform for the development of parallel applications, Windows environments allow PVM to have better performance figures than those obtained from LINUX environments. With this aim it is presented a performance evaluation of two different PVM implementations, one fo...

In this paper we describe the implementation of a Linda-like system on top of PVM. The kernel was initially developed for a Transputer based system[4]. For flexibility the system was ported to PVM. This paper outlines how the York kernel works, how it currently performs with respect to a similar system and possible future developments for the PVM version.

Although PVM was developed to use a network of heterogeneous UNIX computers as a single large parallel computer it has become an interface for portable programming even on MPP s We present PVM performance results for a massively parallel transputer system with up to processors In comparison to an implementation of the same application in the native transputer operating system Parix we realized ...

Wide area computer networks have become a basic part of today's computing infrastructure. These networks connect a variety of machines, presenting an enormous computing resource. In this project we focus on developing methods and tools which allow a programmer to tap into this resource. In this paper we describe PVM and HeNCE, tools and methodology under development that assists a programmer in...

Young mice fed diets deficient in pyridoxine or fed desoxypyridoxine after the inoculation of the pneumonia virus of mice were more resistant to infection than well nourished controls. The susceptibility of young mice to PVM increased with the duration of pyridoxine administration after inoculation. Dietary protein restriction when pyridoxine was provided did not affect the susceptibility of mi...