Scali MPI Connect Release 4.4 Users Guide | Escali specification

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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 Grant of License MaintenanceII Software License Terms Commencement License Manager SupportSub-license and distribution Export Requirements 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 Problem reports Scali mailing lists SMC FAQ SMC release documentsSupport Platforms supported Acronyms and abbreviations How to read this guideLicensing Feedback NIC GUI style font Terms and conventionsTypographic conventions Typographic conventions Scali MPI Connect components Description of Scali MPI Connect SMC network devices Network devices Direct Access Transport DATShared Memory Device Ethernet Devices 3.2 DET Using detctlUsing detstat Infiniband Myrinet4.1 GM 5.1 IB Channel buffer Communication protocols on DAT-devices6 SCI Transporter protocol Inlining protocolEagerbuffering protocol Zerocopy protocol MPI-2 FeaturesSupport for other interconnects Scali MPI Connect Release 4.4 Users Guide MPI-2 Features Compiling and linking Setting up a Scali MPI Connect environmentScali MPI Connect environment variables Running Linker flags Compiler support Naming conventions Running Scali MPI Connect programs Identity of parallel processes Mpimon monitor programBasic usage Standard input Controlling options to mpimonStandard output Program spec Network options How to provide options to mpimon Mpirun usage Mpirun wrapper script Suspending and resuming jobs Running with tcp error detection TfdrRunning with dynamic interconnect failover capabilities Part part Debugging with a sequential debugger Debugging and profiling Built-in-tools for debugging Using built-in segment protect violation handlerAssistance for external profiling Debugging with Etnus Totalview Channelinlinethreshold size to set threshold for inlining Controlling communication resourcesCommunication resources on DAT-devices Using MPIBsend Using MPIIsend, MPIIrecvGood programming practice with SMC Matching MPIRecv with MPIProbe User interface errors and warnings Error and warning messagesFatal errors Unsafe MPI programs Mpimon options Postfix Giving numeric values to mpimonPrefix 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 Commrank recv from fromworldFromcommonFields Using the scanalyzeCommrank send to toworldTocommonFields where Count!avrLen!zroLen!inline!eager!transporter! 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 Benchmarking How to optimize MPI performanceCaching the application program on the nodes First iteration is very slow Memory consumption increase after warm-up Collective operations Finding the best algorithm Image contrast enhancement Appendix aPrograms in the ScaMPItst package Scali MPI Connect Release 4.4 Users Guide Original File format Appendix B When things do not work troubleshootingWhy does not my program start to run? General problems Why can I not start mpid?Why does my program terminate abnormally? Appendix C Per node installation of Scali MPI Connect Install Scali MPI Connect for Direct Ethernet Install Scali MPI Connect for TCP/IPInstall Scali MPI Connect for Myrinet Example Install Scali MPI Connect for SCI Install Scali MPI Connect for InfinibandInstall and configure SCI management software License options Scali kernel drivers Uninstalling SMCTroubleshooting Network providers Troubleshooting the GM provider Troubleshooting 3rdparty DAT providers Scali MPI Connect Release 4.4 Users Guide Grouping Appendix D Bracket expansion and groupingBracket expansion 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