Scali MPI Connect Release 4.4 Users Guide | Escali instruction

Scali MPI Connect Release 4.4 Users Guide

4

Image 16

Escali manual Scali MPI Connect Release 4.4 Users Guide

Contents

Scali MPI ConnectTM Users Guide Acknowledgement Copyright 1999-2005 Scali AS. All rights reserved Scali Bronze Software Certificate II Software License Terms Commencement MaintenanceGrant of License Support License ManagerSub-license and distribution Export Requirements SCALI’s Obligations LICENSEE’s Obligations Title to Intellectual Property Rights Transfer Warranty of Title and Substantial Performance Compliance with Licenses Limitation on Remedies and Liabilities Scali MPI Connect Release 4.4 Users Guide Vii Proprietary Information Miscellaneous 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 Chapter Scali MPI Connect product context Scali mailing lists SMC FAQ SMC release documents Problem reportsSupport Platforms supported How to read this guide Acronyms and abbreviationsLicensing Feedback NIC Typographic conventions Terms and conventionsGUI style font Typographic conventions Description of Scali MPI Connect Scali MPI Connect components SMC network devices Direct Access Transport DAT Network devicesShared Memory Device Ethernet Devices Using detstat Using detctl3.2 DET Myrinet Infiniband4.1 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 Setting up a Scali MPI Connect environment Compiling and linkingScali MPI Connect environment variables Running Compiler support Linker flags Running Scali MPI Connect programs Naming conventions Basic usage Mpimon monitor programIdentity of parallel processes Controlling options to mpimon Standard inputStandard output Program spec How to provide options to mpimon Network options Mpirun wrapper script Mpirun usage Running with tcp error detection Tfdr Suspending and resuming jobsRunning with dynamic interconnect failover capabilities Part part Debugging and profiling Debugging with a sequential debugger Using built-in segment protect violation handler Built-in-tools for debuggingAssistance for external profiling Debugging with Etnus Totalview Communication resources on DAT-devices Controlling communication resourcesChannelinlinethreshold size to set threshold for inlining Using MPIIsend, MPIIrecv Using MPIBsendGood programming practice with SMC Matching MPIRecv with MPIProbe Error and warning messages User interface errors and warningsFatal errors Unsafe MPI programs Mpimon options Prefix Giving numeric values to mpimonPostfix Scali MPI Connect Release 4.4 Users Guide Profiling with Scali MPI Connect Example Using Scali MPI Connect built-in trace Tracing AbsRank MPIcallcommNamerankcall-dependant-parameters where +relSecs S eTime where Features Example Using Scali MPI Connect built-in timing Timing MPIcallDcallsDtimeDfreq TcallsTtimeTfreq Using the scanalyze Commrank recv from fromworldFromcommonFieldsCommrank send to toworldTocommonFields where Count!avrLen!zroLen!inline!eager!transporter! where For timing Using SMCs built-in CPU-usage functionality This produces the following report Scali MPI Connect Release 4.4 Users Guide Tuning communication resources Automatic buffer management How to optimize MPI performance BenchmarkingCaching the application program on the nodes First iteration is very slow Collective operations Memory consumption increase after warm-up Finding the best algorithm Programs in the ScaMPItst package Appendix aImage contrast enhancement Scali MPI Connect Release 4.4 Users Guide File format Original 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 Per node installation of Scali MPI Connect Appendix C Install Scali MPI Connect for TCP/IP Install Scali MPI Connect for Direct EthernetInstall Scali MPI Connect for Myrinet Example Install Scali MPI Connect for Infiniband Install Scali MPI Connect for SCIInstall and configure SCI management software License options Troubleshooting Network providers Uninstalling SMCScali kernel drivers Troubleshooting 3rdparty DAT providers Troubleshooting the GM provider Scali MPI Connect Release 4.4 Users Guide Bracket expansion Appendix D Bracket expansion and groupingGrouping Scali MPI Connect Release 4.4 Users Guide Appendix E Related documentation Scali MPI Connect Release 4.4 Users Guide List of figures Scali MPI Connect Release 4.4 Users Guide Index Transporter protocol SSP