QLogic OFED+ Host Software User Guide, Rev. B

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QLogic OFED+ Host Software User Guide QLogic OFED+ Version 1.5 Distributed SA Configuration File . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 SID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 ScanFrequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20 LogFile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20 Dbg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20 Other Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21 MPI over uDAPL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21 Changing the MTU Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21 Managing the TrueScale Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22 Configure the TrueScale Driver State . . . . . . . . . . . . . . . . . . . . . . . . . 3-23 Start, Stop, or Restart TrueScale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23 Unload the Driver/Modules Manually. . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 TrueScale Driver Filesystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 More Information on Configuring and Loading Drivers. . . . . . . . . . . . . . . . . 3-25 Performance Settings and Management Tips . . . . . . . . . . . . . . . . . . . . . . . 3-25 Homogeneous Nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26 Adapter and Other Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26 Remove Unneeded Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28 Disable Powersaving Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29 Hyper-Threading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29 Host Environment Setup for MPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29 Configuring for ssh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30 Configuring ssh and sshd Using shosts.equiv . . . . . . . . . . 3-30 Configuring for ssh Using ssh-agent . . . . . . . . . . . . . . . . . . . 3-32 Process Limitation with ssh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33 Checking Cluster and Software Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34 ipath_control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34 iba_opp_query . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35 ibstatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36 ibv_devinfo. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36 ipath_checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37 4 Running QLogic MPI on QLogic Adapters Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 QLogic MPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 PSM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Other MPIs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Linux File I/O in MPI Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 MPI-IO with ROMIO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Getting Started with MPI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 iv D000046-005
QLogic OFED+ Host Software User Guide QLogic OFED+ Version 1.5 Copy Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Create the mpihosts File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Compile and Run an Example C Program . . . . . . . . . . . . . . . . . . . . . 4-4 Examples Using Other Programming Languages . . . . . . . . . . . . . . . . 4-5 QLogic MPI Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 Use Wrapper Scripts for Compiling and Linking . . . . . . . . . . . . . . . . . 4-7 Configuring MPI Programs for QLogic MPI . . . . . . . . . . . . . . . . . . . . . 4-8 To Use Another Compiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 Compiler and Linker Variables . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10 Process Allocation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11 TrueScale Hardware Contexts on the DDR and QDR InfiniBand Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12 Enabling and Disabling Software Context Sharing . . . . . . . . . . . 4-13 Restricting TrueScale Hardware Contexts in a Batch Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13 Context Sharing Error Messages . . . . . . . . . . . . . . . . . . . . . . . . 4-14 Running in Shared Memory Mode . . . . . . . . . . . . . . . . . . . . . . . 4-14 mpihosts File Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15 Using mpirun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16 Console I/O in MPI Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18 Environment for Node Programs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19 Environment Variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20 Running Multiple Versions of TrueScale or MPI . . . . . . . . . . . . . . . . . 4-22 Job Blocking in Case of Temporary InfiniBand Link Failures. . . . . . . . 4-23 Performance Tuning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23 CPU Affinity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23 mpirun Tunable Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24 MPD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24 MPD Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24 Using MPD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25 QLogic MPI and Hybrid MPI/OpenMP Applications . . . . . . . . . . . . . . . . . . . 4-25 Debugging MPI Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26 MPI Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26 Using Debuggers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27 QLogic MPI Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28 5 Using Other MPIs Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Installed Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Open MPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 D000046-005 v
Page 1 and 2: QLogic OFED+ Host Software User Gui
Page 3: Table of Contents 1 Introduction Ho
Page 15 and 16: Preface The QLogic OFED+ Host Softw
Page 17 and 18: Preface Technical Support Technical
Page 19 and 20: 1 Introduction How this Guide is Or
Page 21 and 22: 1-Introduction Interoperability QLo
Page 23 and 24: 2 Step-by-Step Cluster Setup and MP
Page 25 and 26: 3 TrueScale Cluster Setup and Admin
Page 27 and 28: 3-TrueScale Cluster Setup and Admin
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3-TrueScale Cluster Setup and Admin
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4 Running QLogic MPI on QLogic Adap
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4-Running QLogic MPI on QLogic Adap
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5 Using Other MPIs Introduction Thi
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5-Using Other MPIs Open MPI Open MP
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5-Using Other MPIs MVAPICH Further
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5-Using Other MPIs Managing Open MP
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5-Using Other MPIs Platform (Scali)
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5-Using Other MPIs Intel MPI Intel
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5-Using Other MPIs Intel MPI When u
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5-Using Other MPIs Improving Perfor
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6 Performance Scaled Messaging Intr
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6-Performance Scaled Messaging Usin
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7 Dispersive Routing Infiniband use
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7-Dispersive Routing • Static_Des
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8 gPXE gPXE Setup gPXE is an open s
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8-gPXE Preparing the DHCP Server in
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8-gPXE Netbooting Over InfiniBand P
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8-gPXE Netbooting Over InfiniBand W
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8-gPXE Netbooting Over InfiniBand #
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8-gPXE Netbooting Over InfiniBand #
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8-gPXE Netbooting Over InfiniBand T
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8-gPXE HTTP Boot Setup 5. Create an
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A mpirun Options Summary This secti
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A-mpirun Options Summary Quiescence
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A-mpirun Options Summary Tuning Opt
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A-mpirun Options Summary Format Opt
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B Benchmark Programs Several MPI pe
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B-Benchmark Programs Benchmark 2: M
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B-Benchmark Programs Benchmark 4: M
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C VirtualNIC Interface Configuratio
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C-VirtualNIC Interface Configuratio
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D SRP Configuration SRP Configurati
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D-SRP Configuration QLogic SRP Conf
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D-SRP Configuration OFED SRP Config
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E Integration with a Batch Queuing
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E-Integration with a Batch Queuing
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E-Integration with a Batch Queuing
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F Troubleshooting This appendix des
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F-Troubleshooting Kernel and Initia
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F-Troubleshooting Kernel and Initia
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F-Troubleshooting OpenFabrics and I
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F-Troubleshooting Performance Issue
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F-Troubleshooting QLogic MPI Troubl
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G ULP Troubleshooting Troubleshooti
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G-ULP Troubleshooting Troubleshooti
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H Write Combining Introduction Writ
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H-Write Combining MTRR Mapping and
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I Useful Programs and Files The mos
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I-Useful Programs and Files Summary
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I-Useful Programs and Files Common
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J Recommended Reading Reference mat
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Corporate Headquarters QLogic Corpo
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