41. 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

Volker Schnecke, Department of Biochemistry, Michigan State University Portability versus Efficiency? Parallel Applications on PVM and Parix 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

42. 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

5.1 Debugging a PVM program Debugging parallel programs is much more difficult than debugging serial programs There are more processes running simultaneously Their interaction can occur error 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 Spawned PVM tasks can also be started under a debugger By setting the flag option to include PvmTaskDebug in By setting the option of the spawn instruction under the console PVM will execute the shell script pvm3/lib/debugger pvm3/lib/debugger pvm3/bin/ARCH/a.out arg1 arg2 ... As supplied, this script Starts an xterm window on the host PVM was started Spawns the task under a debugger in this window The shell script can be modified to include a favorite debugger or to do something else. The following one-liner times each spawned a.out

43. 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/

This document was produces by H E V E ... A Browsers should undergo some configuration to show some symbols. Refer to the H E V E ... A home page Parallel programming with PVM Philippe Marquet marquet@lifl.fr Maîtrise d'informatique November 22, 1993 minor changes, November 24, 1994 revised, December 9, 1994 revised, January 10, 1995 revised, January 7, 1996 February 1998 This document is also available as a gzip'ed PostScript file Thanks to PVM-Parallel Virtual Machine 1 Overview Major advantages of PVM Features Heterogeneity Portability ... How to get it 2 Using PVM Building PVM Installing PVM Programming concepts Starting a parallel virtual machine ... Tools 3 Programming with PVM, the user interface Introduction Process management primitives Information Dynamic configuration ... Fortran interface 4 Writing applications Hello world in C Hello world in Fortran Parallelizing applications Divide and Conquer ... The SPMD model 5 Debugging methods Debugging a PVM program Three steps in debugging PVM programs 6 Implementation details Network protocols PVM at work TidTask identifier Data conversion ... PVM version 3 7 Pros and cons Pros of PVM Cons of PVM 8 Conclusions New features of PVM 3.4

44. Any Search Info - Directory Computers Parallel Computing Programming Libraries P url www.mathcs.emory.edu/pious/. PVaniM Online and postmortem visualization supportfor pvm programs. pvmATM Software to run pvm programs over ATM networks. http://search-info.com/search/engine/index/Computers/Parallel_Computing/Programm

Top Computers Parallel Computing Programming ... Libraries : PVM Description Directory Results: Categories: Documentation Web Site Matches: Adsmith An objectbased distributed shared memory system on PVM. Source code, papers, and documentation. url: www.hensa.ac.uk/parallel/environments/pvm3/adsmith.... CPPvm C++ message passing library based on PVM. Source code, documentation, and examples. url: www.informatik.uni-stuttgart.de/ipvr/bv/cppvm/ Dome Distributed Object Migration Environment. Runs on top of PVM. Source code and papers. url: www.cs.cmu.edu/afs/cs.cmu.edu/project/nectar-adamb.... EasyPVM PVM bindings for C++. url: www.henrique.bucher.com/pvm_c++_wrapper.htm HP-PVM Commercial highperformance implementation of PVM. Product information and installation instructions. url: www.parasys.co.uk/ Internet Parallel Computing Archive : PVM3 Archive of PVMrelated tools and documentation. url: www.hensa.ac.uk/parallel/environments/pvm3/ Internet Parallel Computing Archive : Tape-PVM Event tracing tool. Source code and user manual. url: wotug.ukc.ac.uk/parallel/environments/pvm3/tape-pv....

45. ScienceDaily -- Browse Topics: Computers/Parallel_Computing/Programming/Librarie pvm Provides a graphical interface to the pvm console commands and information,along with several animated views to monitor the execution of pvm programs. http://www.sciencedaily.com/directory/Computers/Parallel_Computing/Programming/L

Match: sort by: relevance date Free Services Subscribe by email RSS newsfeeds PDA-friendly format loc="/images/" A A A Find Jobs In: Healthcare Engineering Accounting College Contract / Freelance Customer Service Diversity Engineering Executive Healthcare Hospitality Human Resources Information Tech International Manufacturing Nonprofit Retail All Jobs by Job Type All Jobs by Industry Relocating? Visit: Moving Resources Moving Companies Mortgage Information Mortgage Calculator Real Estate Lookup Front Page Today's Digest Week in Review Email Updates ... Libraries PVM (34 links) Documentation News about PVM [ More news about PVM Books about PVM [ More books about PVM 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.

46. DEVSEEK: Parallel Computing : Programming : PVM Parallel Computing programming pvm Options. http://www.devseek.com/Parallel_Computing/Programming/PVM/more2.html

: Parallel Computing : Programming : PVM Options HOME WHAT'S COOL TECH NEWS ... Documentation Links: PVMFS - facilitates I/O for programs utilizing the PVM system by providing a file server which presents a common file system and support for coordinated I/O to its parent and sibling PVM tasks. http://www.netlib.org/pvm3/contrib/pvmfs/ (Added: 19-Jan-1999 ) S-Check http://cmr.ncsl.nist.gov/scheck/ (Added: 19-Jan-1999 ) Tkpvm - A merge of PVM and Tcl http://www.cogsci.kun.nl/tkpvm/welcome.html (Added: 19-Jan-1999 ) 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. http://www.netlib.org/utk/icl/xpvm/xpvm.html (Added: 19-Jan-1999 ) Prev 10 Advertise with Devseek Add URL Suggest a Category ... Link to Devseek Questions? Email the Webmaster Help build the largest human-edited directory on the web. Submit a Site Open Directory Project Become an Editor

47. 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/

Programming, Languages and Systems Group Current members of our group and their research interests: 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. Some ongoing projects of our group: 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.

48. 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/

Netinformations Computer Guide PVM HOME MODIFY A LINK LOGIN CONTACT US ... PARTNER Looking for something in particular? the entire directory only this category More search options Home Parallel Computing Programming ... Libraries : PVM CATEGORIES: Documentation LINKS: PVM for Windows Source code and papers. http://www.epm.ornl.gov/pvm/NTport.html Adsmith An object-based distributed shared memory system on PVM. Source code, papers, and documentation. http://www.hensa.ac.uk/parallel/environments/pvm3/adsmith/index.html CPPvm C++ message passing library based on PVM. Source code, documentation, and examples. http://www.informatik.uni-stuttgart.de/ipvr/bv/cppvm/ Dome Distributed Object Migration Environment. Runs on top of PVM. Source code and papers. http://www.cs.cmu.edu/afs/cs.cmu.edu/project/nectar-adamb/web/Dome.html EasyPVM PVM bindings for C++. http://www.henrique.bucher.com/pvm_c++_wrapper.htm HP-PVM Commercial high-performance implementation of PVM. Product information and installation instructions. http://www.parasys.co.uk/ Internet Parallel Computing Archive : PVM3 Archive of PVM-related tools and documentation.

49. 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

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 Go to previous site of this category Last Update: Sun May 23 2004

50. 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

Step 1 of 5: Definition XPVM is an X Windows based, graphical console and monitor for PVM. -Provides a graphical user interface to the PVM console commands -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.

51. 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

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

52. TUTORIAL 2: INTRODUCTION TO MESSAGE PASSING AND PROGRAMMING WITH PVM TUTORIAL 2 INTRODUCTION TO MESSAGE PASSING AND programming WITH pvm.(Morning) DN Jayasimha, The Ohio State University. pvm (Parallel http://www.cs.virginia.edu/~hpdc95/tutorials/tut2.html

TUTORIAL 2: INTRODUCTION TO MESSAGE PASSING AND PROGRAMMING WITH PVM (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.

53. 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

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 PVM Official Parallel Virtual Machine site. News documentation source code performance monitors links to software written in PVM. URL: http://www.epm.ornl.gov/pvm/

54. 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

IBM SP2 at HKU : PVM October 17, 1997. Content of this page : Introduction Setting up PVM Example Loadleveler command file for PVM Example PVM program ... Beyond the University of Hong Kong Introduction PVM, which stands for Parallel Virtual Machine , was originally designed to allow usage of a heterogeneous network of parallel and serial computers to act as a single computational resource. 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. Setting up 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. Warning : PVM 3.3 have problem working with IBM PVMe. You may use either of them. But please don't use both of them together. Example Loadleveler command file for PVM programs. Example PVM program Beyond the University of Hong Kong PVM's Frequently Asked Questions ( very useful ) : http://netlib2.cs.utk.edu/pvm3/faq_html/faq.html

55. Bokus Bokhandel > Pvm Av Sunderam, Vaidyalingam S. (Associate Professor, Departm Part 4 Basic programming techniques common parallel programming paradigms;workload allocation; porting existing applications to pvm. http://www.bokus.com/cgi-bin/more_book_info.cgi?pt=search_result&ISBN=0262571080

56. 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

Parallel Virtual Machine (PVM) in 60 Seconds Start PVM 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. Add PVM hosts You can add hosts to your virtual machine by typing at the console prompt pvm> add hostname Delete a PVM host You can delete hosts (except the one you are on) from your virtual machine by typing pvm> delete hostname Check virtual machine status To see what the present virtual machine looks like, you can type pvm> conf Check out PVM tasks 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 Exit PVM console 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.

57. 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

Message Passing Toolkit: PVM Programmer's Manual - 004-3686-001 Prev Section Chapter 2. PVM Functionality Next Section 2.3. PVM Program Development 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: As described in Section 2.3.4 , for the PVM daemon, and as described in Section 2.3.5 , for your application As an NQS job, as described in Section 2.3.6 Through the PVM console by using the console spawn command, as described in Table 2-2 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

58. 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

Message Passing Toolkit: PVM Programmer's Manual - 004-3686-001 Prev Section Next Section Chapter 2. PVM Functionality Table of Contents Multiple Computer Systems As a Virtual Machine Applications and Environments PVM Program Development Data Types on UNICOS Systems ... Environment Variables This chapter describes the Message Passing Toolkit (MPT) implementation of the Parallel Virtual Machine (PVM) software. The following concepts are discussed: Multiple computer systems as a virtual machine Applications and environments PVM program development Data types Environment variables 2.1. Multiple Computer Systems As a Virtual Machine 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

59. 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

Parallel Programming Resources Table of Contents Click on a topic to skip to that section. General SP-2 information Parallel Operating Environment(POE) LoadLeveler Data Explorer ... Other Parallel Environments General SP-2 information 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.

60. Platform LSF Version 6.0 - Administering Platform LSF - Running Parallel Jobs Top . Submitting pvm Jobs to LSF. Parallel Virtual Machine (pvm) is aparallel programming system distributed by Oak Ridge National Laboratory. http://www.ms.washington.edu/Docs/LSF/LSF_6.0_Manual/admin_6.0/G_parallel.html

Platform Documentation Title Contents Previous ... Index Running Parallel Jobs Contents How LSF Runs Parallel Jobs Preparing Your Environment to Submit Parallel Jobs to LSF Submitting Parallel Jobs Starting Parallel Tasks with LSF Utilities ... Top How LSF Runs Parallel Jobs 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 Preparing Your Environment to Submit Parallel Jobs to LSF Getting the host list 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.

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