QLogic OFED+ Host Software User Guide, Rev. B

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2–Step-by-Step Cluster Setup and MPI Usage Checklists Using MPI Using MPI 9. Set up the host environment to use ssh. Two methods are discussed in “Host Environment Setup for MPI” on page 3-29. 10. Verify the cluster setup. See “Checking Cluster and Software Status” on page 3-34. 1. Verify that the QLogic hardware and software has been installed on all the nodes you will be using, and that ssh is set up on your cluster (see all the steps in the Cluster Setup checklist). 2. Copy the examples to your working directory. See “Copy Examples” on page 4-3. 3. Make an mpihosts file that lists the nodes where your programs will run. See “Create the mpihosts File” on page 4-3. 4. Compile the example C program using the default wrapper script mpicc. Use mpirun to run it. See “Compile and Run an Example C Program” on page 4-4. 5. Try the examples with other programming languages, C++, Fortran 77, and Fortran 90 in “Examples Using Other Programming Languages” on page 4-5. 6. To test using other MPIs that run over PSM, such as MVAPICH, Open MPI, HP ® -MPI, Platform MPI, and Intel MPI, see Section 5 Using Other MPIs. 7. To switch between multiple versions of Open MPI, MVAPICH, and QLogic MPI, use the mpi-selector. See “Managing Open MPI, MVAPICH, and QLogic MPI with the mpi-selector Utility” on page 5-6. 8. Refer to “QLogic MPI Details” on page 4-6 for more information about QLogic MPI, and to “Performance Tuning” on page 4-23 to read more about runtime performance tuning. 9. Refer to Section 5 Using Other MPIs to learn about using other MPI implementations. 2-2 D000046-005 B
3 TrueScale Cluster Setup and Administration Introduction This section describes what the cluster administrator needs to know about the QLogic OFED+ software and system administration. The TrueScale driver ib_qib, QLogic Performance Scaled Messaging (PSM), accelerated Message-Passing Interface (MPI) stack, the protocol and MPI support libraries, and other modules are components of the QLogic OFED+ software. This software provides the foundation that supports the MPI implementation. Figure 3-1 illustrates these relationships. Note that HP-MPI, Scali, MVAPICH, MVAPICH2, and Open MPI can run either over PSM or OpenFabrics ® User Verbs. The QLogic Virtual Network Interface Controller (VNIC) driver module is also illustrated in the figure. MPI Applications User Space Commo n InfiniBand/OpenFabri QLogic OFED+ Hardware QLogic MPI HP-MPI Scali MVAPICH Open MPI QLogic OFED+ Communication Library (PSM) HP-MPI Scali MVAPICH MVAPICH2 Open MPI User Verbs HP-MPI Intel MPI uDAPL QLogic FM uMAD API Kernel Space TCP/IP IPoIB VNIC QLogic OFED+ Driver QLogic infiniband adapter Figure 3-1. QLogic OFED+ Software Structure D000046-005 B 3-1
Page 1 and 2: QLogic OFED+ Host Software User Gui
Page 3 and 4: 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: 2 Step-by-Step Cluster Setup and MP
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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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