The Parallel Virtual Machine (PVM) is a software tool for parallel networking of computers. It is designed to allow a network of heterogeneous machines to be used as a single distributed parallel processor. Computer software (or simply software) refers to one or more computer programs held in the storage of a computer for some purpose. ... The tower of a personal computer (specifically a Power Mac G5). ... A wide variety of systems of interconnected components are called networks. ... A machine is any mechanical or organic device that transmits or modifies energy to perform or assist in the performance of tasks. ... Parallel computing is the simultaneous execution of the same task (split up and specially adapted) on multiple processors in order to obtain faster results. ...

PVM was developed by the University of Tennessee, The Oak Ridge National Laboratory and Emory University. The first version was written at ORNL in 1989, and after being rewritten by University of Tennessee, version 2 was released in March 1991. Version 3 was released in March 1993, and supported fault tolerance and better portability. The University of Tennessee (UT), sometimes called the University of Tennessee, Knoxville (UT Knoxville or UTK), is the primary institution of the statewide land-grant University of Tennessee system, Tennessees flagship public university. ... Emory University is an undergraduate, graduate, and research institution in Atlanta, Georgia, USA. Emory is one of the most prestigious large private universities in the South and within the United States, according to yearly rankings by US News & World Report. ... 1989 is a common year starting on Sunday of the Gregorian calendar. ... 1991 is a common year starting on Tuesday of the Gregorian calendar. ... 1993 is a common year starting on Friday of the Gregorian calendar and marked the Beginning of the International Decade to Combat Racism and Racial Discrimination (1993-2003). ... In computer science, porting is the adaptation of a piece of software so that it will function in a different computing environment to that for which it was originally written. ...

Though PVM is not being actively developed, it was a significant step towards modern trends in distributed processing and grid computing. This article or section should include material from Distributed programming This article or section should include material from Distributed system Distributed computing is the process of aggregating the power of several computing entities to collaboratively run a single computational task in a transparent and coherent way, so that they appear... Grid computing uses the resources of a many separate computers connected by the internet to solve large-scale computation problems. ...

See also

• Virtual machine
• CORBA
• Globus Alliance
• Occam programming language
• Linda (coordination language)
• Calculus of Communicating Systems
• Calculus of Broadcasting Systems
• MPI

In general terms, a virtual machine in computer science is software that creates an environment between the computer platform and the end user in which the end user can operate software. ... In computing, Common Object Request Broker Architecture (CORBA), is a standard for software componentry. ... The Globus Alliance is an association dedicated to developing fundamental technologies needed to build grid computing infrastructures. ... Occam (from William of Ockham of Occams Razor fame) is a parallel programming language that builds on Communicating Sequential Processes (CSP) and shares many of their features. ... In computer science, Linda is an implementation of the TupleSpaces model for concurrent programming. ... The Calculus of Communicating Systems (or CCS) is a process calculus developed by Robin Milner. ... See also Pi-Calculus Communicating sequential processes Haskell Bisimulation Alternating Bit Protocol References K. V. S. Prasad: Calculus of Broadcasting Systems, Science of Computer Programming, 25, 1995 K. V. S. Prasad: Programming with broadcasts, Lecture Notes in Computer Science, Vol. ... MPI may stand for: Mental Performance Index, first ever mental scoring system in sport by Dr. John F. Murray Message Passing Interface, a computer communications protocol Message Parsing Interpreter, a lisp-like language on Fuzzball MUCKs Motive Power Industries, a locomotive manufacturer Max-Planck-Institut, elite scientific research institutes in...

References

The Free On-line Dictionary of Computing (FOLDOC) is an on-line, searchable encyclopedic dictionary of computing subjects. ... GNU logo The GNU Free Documentation License (GNU FDL or simply GFDL) is a copyleft license for free content, designed by the Free Software Foundation (FSF) for the GNU project. ...

External links

• PVM home (http://www.csm.ornl.gov/pvm/pvm_home.html)
• PVM++: A C++-Library for PVM (http://pvm-plus-plus.sourceforge.net/)
• Free library for code mobility (http://proactive.objectweb.org/)
• Citations from CiteSeer (http://citeseer.org/cs?q=Parallel+and+Virtual+and+Machine)
• PVM on parawiki (http://parawiki.plm.eecs.uni-kassel.de/parawiki/index.php/Parallel_Virtual_Machine_%28PVM%29)