Abstract: Portability Versus Efficiency? Parallel Applications On PVM And Parix The performance of a pvm implementation is compared to the performance of a native programming environment for some parallel systems and the influence on the programming model is described. that http://www.bch.msu.edu/labs/kuhn/web/volker/abstracts/zeus_95.html
Extractions: Volker Schnecke, Department of Biochemistry, Michigan State University Alexander Reinefeld Volker Schnecke Analogous to the shift from assembler language programming to the third-generation languages in the early years of computer science, we are currently witnessing a paradigm change towards the use of portable programming models in parallel high-performance computing. Like before, the use of a high-level programming environment must be paid for by a reduced system performance. But how much does portability cost in practice? Is it worth paying that price? What effect has the choice of the programming model on the algorithm architecture? In this paper, we attempt to answer these questions by comparing two applications from the domain of combinatorial optimization that have been implemented with the Parix and PVM programming models. Performance benchmarks have been run on three different systems: a massively parallel transputer system with relatively slow T805-processors, a moderately parallel Parsytec GC/PowerPlus system with powerful 80 MFLOPS processors, and a UNIX workstation cluster connected by a 10Mbps LAN. While the Parix implementations clearly turned out to be fastest, PVM gives portability at the cost of a small, acceptable loss in performance. Proceedings ZEUS '95, Workshop on Parallel Programming and Computation
Debugging A PVM Program a programming error has caused all the processes to be waiting on messages; Resourcefailure due to an error, processes have spawned extra processes; All pvm http://www.lifl.fr/~marquet/ens/pp/pvm/pp-pvm037.html
Extractions: Deadlock : a programming error has caused all the processes to be waiting on messages Resource failure : due to an error, processes have spawned extra processes All PVM routines returns an error condition if some error has been detected during their execution Two routines and pvm_setopt (PvmAutoErr...) are provided to allow the detection and printing of any PVM error
Parallel Programming With PVM Refer to the H E V E A home page. Parallel programming with pvm. PhilippeMarquet Xpvm; Tools. 3 programming with pvm, the user interface. http://www.lifl.fr/~marquet/ens/pp/pvm/
Extractions: Links about PVM PVM3 Library - This directory contains a number of items relating to PVM version 3. XPVM: A Graphical Console and Monitor for PVM - Provides a graphical interface to the PVM console commands and information, along with several animated views to monitor the execution of PVM programs. Adsmith - An object-based distributed shared memory system on PVM. Source code, papers, and documentation. Internet Parallel Computing Archive : PVM3 - Archive of PVM-related tools and documentation.
The Programming, Languages And Systems Group Machine (pvm) message passing system. The purpose of pvm1 is to aidthe debugging and understanding of ``well behaved pvm programs. http://www.csse.uwa.edu.au/pls/
Extractions: Programming, Languages and Systems Group Dr Chris McDonald - computer networks, operating systems, and programming environments. Dr Amitava Datta - coarse-grained parallel algorithms, and fault-tolerant computing. Dr Lyndon While - functional programming, fractals, and dynamic communication algorithms. Luigi Barone - evolutionary algorithms in adaptive autonomous agents. Alex Barmouta - Secure payment schemes for the Computational Grid. Andrew Boden - adding transactions to the Java Virtual Machine. Voon-Li Chung - Linda-based operating systems. Simon Huband - debugging of parallel programs with incomplete information. Primantara Trisnawan - Simulation of network configuration and security testing. The cnet network protocol simulator (updated February 2002) - by Chris McDonald. cnet v2.0 is a networking simulator which enables experimentation with various data-link layer, network layer, routing and transport layer networking protocols in networks consisting of any combination of point-to-point links and Ethernet segments. cnet has been specifically developed for, and is used in, undergraduate computer networking courses taken by thousands of students worldwide since 1991. - a single process PVM execution sandbox (Jan'99) - by Chris McDonald.
Computers - Parallel Computing: Programming: Libraries: PVM Source code, documentation, and white papers. http//www.mathcs.emory.edu/pious/.PVaniM Online and postmortem visualization support for pvm programs. http://www.netinformations.com/Parallel_Computing/Programming/Libraries/PVM/
XPVM: A Graphical Console And Monitor For PVM Parallel Computing programming Libraries pvm Xpvm A Graphical Consoleand Monitor for pvm, Xpvm A Graphical Console and Monitor for pvm. http://www.netinformations.com/Detailed/128214.html
Extractions: Netinformations Computer Guide HOME ADD A LINK MODIFY A LINK LOGIN ... PARTNER Provides a graphical interface to the PVM console commands and information, along with several animated views to monitor the execution of PVM programs. Looking for something in particular? More search options Parallel Computing: Programming: Libraries: PVM: XPVM: A Graphical Console and Monitor for PVM XPVM: A Graphical Console and Monitor for PVM Provides a graphical interface to the PVM console commands and information, along with several animated views to monitor the execution of PVM programs. Title: XPVM: A Graphical Console and Monitor for PVM Description: Provides a graphical interface to the PVM console commands and information, along with several animated views to monitor the execution of PVM programs. URL: http://www.netlib.org/utk/icl/xpvm/xpvm.html Site added: Sat Sep 06 2003 Category: Home Parallel Computing Programming Libraries ... PVM : XPVM: A Graphical Console and Monitor for PVM Visit this link
UNC Charlotte's Parallel Programming Group Provides a graphical user interface to the pvm console commands Providesseveral animated views to monitor the execution of pvm programs; http://www.coe.uncc.edu/~abw/par_prog/xpm1.htm
Extractions: -Provides several animated views to monitor the execution of PVM programs Xpvm generates trace records during PVM program execution. The resulting trace file is used to "playback" a program's execution. The xpvm views provide information about the interactions among tasks in a parallel PVM program, to assist in debugging and performance tuning. Click here to view a screenshot of XPVM and its drop-down menus.
Volume 17 provides highlevel graphical programming abstraction mechanisms to construct parallelapplications. The current version of GRADE can generate C+pvm code but http://www.cai.sk/Volumes/Volume_17_1998_No5.htm
Extractions: Volume 17, 1998, No. 5 Special Issue on Parallel Programming Environments and Tools Guest Editor: Peter Kacsuk EDDEPPS : an environment for optimal parallel software design T. Delaitre. M.J. Zemerly, G.R. Justo, J. Burgeois, S.C. Winter Abstract. This paper describes an environment for performance-oriented design of portable parallel software. The environment consists of a graphical design tool based on the PVM communication library for building parallel algorithms, a state-of-the-art simulation engine and a visualization tool for animation of program execution and visualization of platform and network performance measures and statistics. The toolset is used to model a virtual machine composed of a cluster of workstations interconnected by a local area network. The simulation model used is modular and its components are interchangeable which allows easy re-configuration of the platform. The model is validated using experiments on the COMMSI benchmark from the Parkbench suite, and a standard image processing algorithm with maximum errors of 1% and 10% respectively. GRADE : a graphical programming environment for multicomputers P. Kacsuk, G. Dózsa, T. Fadfyas, R. Lovas
Extractions: (Morning) D.N. Jayasimha, The Ohio State University SPEAKER: D. N. Jayasimha obtained his Ph.D. from the Center for Supercomputing Research and Development, University of Illinois in 1988. He has been on the faculty at The Ohio State University in Columbus, Ohio since then. During 1993-94, he was a Visiting Senior Research Associate at the NASA Lewis Research Center, Cleveland, OH where he worked on parallelizing applications using PVM and other message passing libraries. He has offered tutorials on message passing and PVM at the Ohio Aerospace Institute and NASA, and at 1994 International Workshop on Parallel Processing. His research interests are in the areas of communication and synchronization in parallel computation, parallel architectures, and parallel applications.
Computers/Parallel_Computing/Programming/PVM Feel free to peruse the directory or perform a search for your specific technologyrelatedrequest. / Computers / Parallel_Computing / programming / pvm. http://www.technology-and-computers.com/Computers/Parallel_Computing/Programming
Extractions: Search: Welcome to the technology-and-computers.com search portal. Whether you are looking for information about the Internet, PCs, laptops, software, hardware or various other forms of technology, this is the destination for you. Technology-and-computers.com is the innovative search portal dedicated to providing a wide-range of technology and computer resources. The objective of the technology-and-computers.com search portal is to accumulate an all-inclusive and up to date directory of technology resources. Here you will find links to technology related news, articles, product reviews, Web sites and more. No matter if you are a novice Web user or a tech wizard, technology-and-computers.com has something to offer you. Feel free to peruse the directory or perform a search for your specific technology-related request. Computers Programming PVM Documentation
IBM SP2 At HKU : PVM However, pvm is a old standard for parallel programming. But please don t useboth of them together. Example Loadleveler command file for pvm programs. http://www.hku.hk/cc/sp2/software/pvm.html
Extractions: However, PVM is a old standard for parallel programming. The new standard is call MPI ( message passing interface ). MPI should be used in new programs instead of PVM. Users need to add the following line in their own .cshrc file : #PVM setenv PVM_ROOT /usr/local/pvm3 setenv PVM_ARCH RS6K Note : .cshrc and all scripts sourced by it cannot contain out put statement. Otherwise the master daemons cannot start daemons at other nodes.
PVM In 60 Seconds Hello World program. Hereafter is a pvm Hello World program. Some example programsin pvm Book. pvm Man Page (very useful for programming reference). http://www.cs.mcgill.ca/~qxu2/pvm.html
Extractions: Parallel Virtual Machine (PVM) in 60 Seconds Before we go over the steps to compile and run parallel PVM programs, you should be sure you can start up PVM and configure a virtual machine. On any host on which PVM has been installed you can type % pvm You should get back a PVM console prompt signifying that PVM is now running on this host. You can add hosts to your virtual machine by typing at the console prompt pvm> add hostname You can delete hosts (except the one you are on) from your virtual machine by typing pvm> delete hostname To see what the present virtual machine looks like, you can type pvm> conf To see what PVM tasks are running on the virtual machine, you type pvm> ps -a Of course you don't have any tasks running yet You type ``quit" at the console prompt, the console will quit but your virtual machine and tasks will continue to run. At any Unix prompt on any host in the virtual machine, you can type % pvm and you will get the message ``pvm already running" and the console prompt.
PVM Program Development When building an application that uses the shared memory version of pvm,you must be using the programming Environment 3.0 release or later. http://www.cray.com/craydoc/manuals/004-3686-001/html-004-3686-001/z837618211jlb
Extractions: Message Passing Toolkit: PVM Programmer's Manual - 004-3686-001 Prev Section Chapter 2. PVM Functionality Next Section To develop a program that uses PVM, you must perform the following steps: Add PVM function calls to your application for process initiation, communications, and synchronization. For syntax descriptions of these functions, see Chapter 4 Build executable files for the systems that you will use, as described in Section 2.3.1 Create a host file to define the virtual machine, as described in Section 2.3.2 If your program is in distributed mode, execute the PVM daemon and your application in one of the following ways: If your application is in stand-alone mode, execute it as described in Section 2.3.9.2 , or Chapter 3 Troubleshoot the application, if necessary. For information on PVM troubleshooting, see Section 2.3.8
PVM Functionality User programs, written in C or Fortran programming languages, gain access toPVM in the form of library routines for functions such as the following http://www.cray.com/craydoc/manuals/004-3686-001/html-004-3686-001/inoi38cdep.ht
Extractions: Message Passing Toolkit: PVM Programmer's Manual - 004-3686-001 Prev Section Next Section This chapter describes the Message Passing Toolkit (MPT) implementation of the Parallel Virtual Machine (PVM) software. The following concepts are discussed: PVM is a software system that enables a collection of heterogeneous computer systems to be used as a coherent and flexible concurrent computation resource. The individual systems can be shared-memory or local-memory multiprocessors, vector supercomputers, specialized graphics engines, or scalar workstations interconnected by a variety of networks. From the user's point of view, the combination of these different systems can be treated as a single virtual machine when using PVM. The term
Parallel Programming Resources Parallel Virtual Machine A Users Guide and Tutorial for networked parallel computing,an excelant introduction to parallel programming and the use of pvm. http://www-math.cc.utexas.edu/math/parallel/bytopic.html
Extractions: Click on a topic to skip to that section. IBM POWERparallel Systems Products IBM's home page for its Scalable POWERparallel (SP) Systems Contains pointers to information on the SP-2 processors and high switch, the Parallel Environment, Load Leveler, and other software. IBM High-Performance Computing IBM High-Performance Computing page, some of this information is outdated by the above site. CERN SP2 Service page CERN has recently acquired an SP 2 machine to replace a VM system. This site contains some excellent documentation on getting started with the SP2 and an AIX for VM users guide. IBM AIX Parallel Environment This WWW page describes the software provided by IBM with the SP-2 system which supports parallel program development and execution. LoadLeveler IBM's load balancing and resource managment facility for parallel or distributed computing environments.
Extractions: Platform Documentation Title Contents Previous ... Index Top When LSF runs a job, the LSB_HOSTS variable is set to the names of the hosts running the batch job. For a parallel batch job, LSB_HOSTS contains the complete list of hosts that LSF has allocated to that job. LSF starts one controlling process for the parallel batch job on the first host in the host list. It is up to your parallel application to read the LSB_HOSTS environment variable to get the list of hosts, and start the parallel job components on all the other allocated hosts. LSF provides a generic interface to parallel programming packages so that any parallel package can be supported by writing shell scripts or wrapper programs. For information about writing parallel applications for use with the Platform Parallel product, see Using Platform Parallel (OBSOLETE) Top Some applications can take this list of hosts directly as a command line parameter. For other applications, you may need to process the host list.