Scali MPI ConnectTM Users Guide | Escali 4.4 instruction

Scali MPI ConnectTM Users Guide

Software release 4.4

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Escali 4.4 manual Scali MPI ConnectTM Users Guide

Contents

Scali MPI ConnectTM Users Guide Copyright 1999-2005 Scali AS. All rights reserved Acknowledgement Scali Bronze Software Certificate II Software License Terms Commencement MaintenanceGrant of License 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 Typographic conventions Terms and conventionsGUI style font Typographic conventions Scali MPI Connect components Description of Scali MPI Connect SMC network devices Network devices Direct Access Transport DATShared Memory Device Ethernet Devices Using detstat Using detctl3.2 DET Infiniband Myrinet4.1 GM 5.1 IB 6 SCI Communication protocols on DAT-devicesChannel buffer Eagerbuffering protocol Inlining protocolTransporter protocol Support for other interconnects MPI-2 FeaturesZerocopy protocol 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 Basic usage Mpimon monitor programIdentity of parallel processes 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 Communication resources on DAT-devices Controlling communication resourcesChannelinlinethreshold size to set threshold for inlining 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 Prefix Giving numeric values to mpimonPostfix 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 Programs in the ScaMPItst package Appendix aImage contrast enhancement Scali MPI Connect Release 4.4 Users Guide Original File format Why does not my program start to run? When things do not work troubleshootingAppendix B Why does my program terminate abnormally? Why can I not start mpid?General problems 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 Troubleshooting Network providers Uninstalling SMCScali kernel drivers Troubleshooting the GM provider Troubleshooting 3rdparty DAT providers Scali MPI Connect Release 4.4 Users Guide Bracket expansion Appendix D Bracket expansion and groupingGrouping 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