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Hodnocené. / 5. Na základě hodnocení zákazníků
4–InfiniPath Cluster Setup and Administration
Managing the InfiniPath Driver
IB6054601-00 H 4-19
A
Managing the InfiniPath Driver
The startup script for ib_ipath is installed automatically as part of the software
installation, and normally does not need to be changed. It runs as a system
service.
The primary configuration file for the InfiniPath driver ib_ipath and other
modules and associated daemons is /etc/infiniband/openib.conf.
Normally, this configuration file is set up correctly at installation and the drivers are
loaded automatically during system boot once the RPMs have been installed.
However, the ib_ipath driver has several configuration variables that set
reserved buffers for the software, define events to create trace records, and set
the debug level.
If you are upgrading, your existing configuration files will not be overwritten.
The device files are:
/dev/ipath
/dev/ipath0, /dev/ipath1, ...
The numbered device files allow access to a specific InfiniPath unit.
See the ib_ipath man page for more details.
Configure the Infinipath Driver State
Use the following commands to check or configure the state. These methods will
not reboot the system.
To check the configuration state, use this command. You do not need to be a root
user:
$ chkconfig --list openibd
To enable the driver, use the following command (as a root user):
# chkconfig openibd on 2345
To disable the driver on the next system boot, use the following command (as a
root user):
# chkconfig openibd off
NOTE:
This command does not stop and unload the driver if the driver is already
loaded.
- OFED Software Users Guide 1
- Document Revision History 2
- QLogic OFED Version 1.4 13
- IB6054601-00 H Page xiii 13
- Page xiv IB6054601-00 H 14
- Table of Contents 15
- 5 Using QLogic MPI 16
- 6 Using Other MPIs 17
- List of Figures 22
- List of Tables 22
- 1 Introduction 23
- Overview 24
- Interoperability 25
- Convention Meaning 26
- Documentation 27
- Contact Information 27
- 1–Introduction 28
- 1-6 IB6054601-00 H 28
- 2 Feature Overview 29
- Other Changes 30
- Continued Support 30
- Table Notes 31
- PCIe is Gen 1 31
- Compiler Support 33
- Software Components 33
- 2–Feature Overview 34
- 2-6 IB6054601-00 H 34
- 3 Step-by-Step Cluster Setup 35
- Using MPI 36
- 4 InfiniPath Cluster Setup 37
- Installed Layout 38
- Memory Footprint 39
- 4-6 IB6054601-00 H 42
- # ifconfig ib0 42
- Using QLogic SRP 45
- Using OFED SRP 45
- IB6054601-00 H 4-11 47
- # ib_qlgc_vnic_query 47
- 4-12 IB6054601-00 H 48
- IB6054601-00 H 4-13 49
- 4-18 IB6054601-00 H 54
- $ ibv_devinfo 54
- InfiniPath Driver Filesystem 57
- Homogeneous Nodes 58
- Adapter and Other Settings 58
- Remove Unneeded Services 59
- Disable Powersaving Features 60
- Hyper-Threading 60
- Configuring for ssh 61
- The Intel Cluster Checker 67
- 4-32 IB6054601-00 H 68
- Other MPIs 70
- MPI-IO with ROMIO 70
- Getting Started with MPI 71
- QLogic MPI Details 73
- To Use Another Compiler 76
- Process Allocation 78
- 5–Using QLogic MPI 79
- IB6054601-00 H 5-11 79
- 5-12 IB6054601-00 H 80
- PSM_SHAREDCONTEXTS=0 80
- PSM_SHAREDCONTEXTS=NO 80
- Running in Shared Memory Mode 81
- Using mpirun 83
- Console I/O in MPI Programs 85
- Environment for Node Programs 85
- Environment Variables 86
- Name Description 87
- Performance Tuning 89
- MPD Description 91
- Using MPD 91
- Applications 92
- Debugging MPI Programs 93
- QLogic MPI Limitations 94
- Open MPI 97
- Running Open MPI Applications 98
- Running MVAPICH Applications 100
- Installation 102
- Compiling HP-MPI Applications 102
- Running HP-MPI Applications 102
- More Information on HP-MPI 102
- Platform (Scali) MPI 103
- Intel MPI 104
- IB6054601-00 H 6-13 107
- 6–Using Other MPIs 107
- 6-14 IB6054601-00 H 108
- A mpirun Options Summary 109
- Spawn Options 110
- Quiescence Options 111
- Verbosity Options 111
- Startup Options 111
- Stats Options 112
- Tuning Options 113
- Shell Options 114
- Debug Options 114
- Format Options 115
- Other Options 115
- A–mpirun Options Summary 116
- A-8 IB6054601-00 H 116
- B Benchmark Programs 117
- Between Two Nodes 119
- B–Benchmark Programs 122
- B-6 IB6054601-00 H 122
- C Integration with a Batch 123
- Using SLURM for Batch Queuing 124
- Allocating Resources 125
- Generating the mpihosts File 125
- Simple Process Management 126
- D Troubleshooting 129
- BIOS Settings 130
- SDP Module Not Loading 136
- Performance Issues 137
- Affinity on Opteron Systems 138
- MVAPICH Performance Issues 138
- Erratic Performance 139
- QLogic MPI Troubleshooting 140
- Mixed Releases of MPI RPMs 141
- Missing mpirun Executable 141
- Cross-Compilation Issues 142
- Compiler/Linker Mismatch 143
- Process Limitation with ssh 148
- Using MPI.mod Files 149
- Extending MPI Modules 149
- Queuing System 151
- General Error Messages 154
- MPI Messages 156
- MPI Stats 159
- D–Troubleshooting 160
- D-32 IB6054601-00 H 160
- E Write Combining 161
- PAT and Write Combining 162
- E–Write Combining 164
- E-4 IB6054601-00 H 164
- F Useful Programs and Files 165
- Table F-1. Useful Programs 166
- Program Name Function 166
- F–Useful Programs and Files 175
- IB6054601-00 H F-11 175
- # modprobe -v ib_ipath 175
- Common Tasks and Commands 177
- Function Command 178
- subdirectory of the 183
- F-20 IB6054601-00 H 184
- G Recommended Reading 185
- Clusters 186
- Networking 186
- Other Software Packages 186
- Glossary 187
- EE – kDAPL 188
- Glossary-2 IB6054601-00 H 188
- IB6054601-00 H Glossary-3 189
- Glossary-4 IB6054601-00 H 190
- IB6054601-00 H Glossary-5 191
- RDMA — uDAPL 191
- Glossary-6 IB6054601-00 H 192
- Numerics 193
- Index-2 IB6054601-00 H 194
- IB6054601-00 H Index-3 195
- Index-4 IB6054601-00 H 196
- IB6054601-00 H Index-5 197
- Index-6 IB6054601-00 H 198
- IB6054601-00 H Index-7 199
- Index-8 IB6054601-00 H 200
- IB6054601-00 H Index-9 201
- Index-10 IB6054601-00 H 202
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