Scali MPI Connect Release 4.4 Users Guide | Escali manual

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Scali MPI Connect Release 4.4 Users Guide

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Escali manual Scali MPI Connect Release 4.4 Users Guide

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Scali MPI ConnectTM Users Guide Copyright 1999-2005 Scali AS. All rights reserved Acknowledgement Scali Bronze Software Certificate Maintenance II Software License Terms CommencementGrant of License Export Requirements SupportLicense Manager Sub-license and distribution LICENSEE’s Obligations SCALI’s Obligations Transfer Title to Intellectual Property Rights Compliance with Licenses Warranty of Title and Substantial Performance Scali MPI Connect Release 4.4 Users Guide Vii Limitation on Remedies and Liabilities Miscellaneous Proprietary Information Governing Law Scali MPI Connect Release 4.4 Users Guide Table of contents Profiling with Scali MPI Connect Appendix a Example MPI code Scali MPI Connect Release 4.4 Users Guide Scali MPI Connect product context Chapter Platforms supported Scali mailing lists SMC FAQ SMC release documentsProblem reports Support Feedback How to read this guideAcronyms and abbreviations Licensing NIC Terms and conventions Typographic conventionsGUI style font Typographic conventions Scali MPI Connect components Description of Scali MPI Connect SMC network devices Ethernet Devices Direct Access Transport DATNetwork devices Shared Memory Device Using detctl Using detstat3.2 DET 5.1 IB MyrinetInfiniband 4.1 GM Communication protocols on DAT-devices 6 SCIChannel buffer Inlining protocol Eagerbuffering protocolTransporter protocol MPI-2 Features Support for other interconnectsZerocopy protocol Scali MPI Connect Release 4.4 Users Guide MPI-2 Features Running Setting up a Scali MPI Connect environmentCompiling and linking Scali MPI Connect environment variables Linker flags Compiler support Naming conventions Running Scali MPI Connect programs Mpimon monitor program Basic usageIdentity of parallel processes Program spec Controlling options to mpimonStandard input Standard output Network options How to provide options to mpimon Mpirun usage Mpirun wrapper script Part part Running with tcp error detection TfdrSuspending and resuming jobs Running with dynamic interconnect failover capabilities Debugging with a sequential debugger Debugging and profiling Debugging with Etnus Totalview Using built-in segment protect violation handlerBuilt-in-tools for debugging Assistance for external profiling Controlling communication resources Communication resources on DAT-devicesChannelinlinethreshold size to set threshold for inlining Matching MPIRecv with MPIProbe Using MPIIsend, MPIIrecvUsing MPIBsend Good programming practice with SMC Unsafe MPI programs Error and warning messagesUser interface errors and warnings Fatal errors Mpimon options Giving numeric values to mpimon PrefixPostfix Scali MPI Connect Release 4.4 Users Guide Example Profiling with Scali MPI Connect Tracing Using Scali MPI Connect built-in trace +relSecs S eTime where AbsRank MPIcallcommNamerankcall-dependant-parameters where Example Features Timing Using Scali MPI Connect built-in timing MPIcallDcallsDtimeDfreq TcallsTtimeTfreq Count!avrLen!zroLen!inline!eager!transporter! where Using the scanalyzeCommrank recv from fromworldFromcommonFields Commrank send to toworldTocommonFields where For timing This produces the following report Using SMCs built-in CPU-usage functionality Scali MPI Connect Release 4.4 Users Guide Automatic buffer management Tuning communication resources First iteration is very slow How to optimize MPI performanceBenchmarking Caching the application program on the nodes Memory consumption increase after warm-up Collective operations Finding the best algorithm Appendix a Programs in the ScaMPItst packageImage contrast enhancement Scali MPI Connect Release 4.4 Users Guide Original File format When things do not work troubleshooting Why does not my program start to run?Appendix B Why can I not start mpid? Why does my program terminate abnormally?General problems Appendix C Per node installation of Scali MPI Connect Example Install Scali MPI Connect for TCP/IPInstall Scali MPI Connect for Direct Ethernet Install Scali MPI Connect for Myrinet License options Install Scali MPI Connect for InfinibandInstall Scali MPI Connect for SCI Install and configure SCI management software Uninstalling SMC Troubleshooting Network providersScali kernel drivers Troubleshooting the GM provider Troubleshooting 3rdparty DAT providers Scali MPI Connect Release 4.4 Users Guide Appendix D Bracket expansion and grouping Bracket expansionGrouping Scali MPI Connect Release 4.4 Users Guide Related documentation Appendix E Scali MPI Connect Release 4.4 Users Guide List of figures Scali MPI Connect Release 4.4 Users Guide Transporter protocol Index SSP