Product specifications
Table Of Contents
- Table of Contents
- 1 Introduction
- 2 Feature Overview
- 3 Step-by-Step Cluster Setup and MPI Usage Checklists
- 4 InfiniPath Cluster Setup and Administration
- Introduction
- Installed Layout
- Memory Footprint
- BIOS Settings
- InfiniPath and OpenFabrics Driver Overview
- OpenFabrics Drivers and Services Configuration and Startup
- Other Configuration: Changing the MTU Size
- Managing the InfiniPath Driver
- More Information on Configuring and Loading Drivers
- Performance Settings and Management Tips
- Host Environment Setup for MPI
- Checking Cluster and Software Status
- 5 Using QLogic MPI
- Introduction
- Getting Started with MPI
- QLogic MPI Details
- Use Wrapper Scripts for Compiling and Linking
- Configuring MPI Programs for QLogic MPI
- To Use Another Compiler
- Process Allocation
- mpihosts File Details
- Using mpirun
- Console I/O in MPI Programs
- Environment for Node Programs
- Environment Variables
- Running Multiple Versions of InfiniPath or MPI
- Job Blocking in Case of Temporary InfiniBand Link Failures
- Performance Tuning
- MPD
- QLogic MPI and Hybrid MPI/OpenMP Applications
- Debugging MPI Programs
- QLogic MPI Limitations
- 6 Using Other MPIs
- A mpirun Options Summary
- B Benchmark Programs
- C Integration with a Batch Queuing System
- D Troubleshooting
- Using LEDs to Check the State of the Adapter
- BIOS Settings
- Kernel and Initialization Issues
- OpenFabrics and InfiniPath Issues
- Stop OpenSM Before Stopping/Restarting InfiniPath
- Manual Shutdown or Restart May Hang if NFS in Use
- Load and Configure IPoIB Before Loading SDP
- Set $IBPATH for OpenFabrics Scripts
- ifconfig Does Not Display Hardware Address Properly on RHEL4
- SDP Module Not Loading
- ibsrpdm Command Hangs when Two Host Channel Adapters are Installed but Only Unit 1 is Connected to the Switch
- Outdated ipath_ether Configuration Setup Generates Error
- System Administration Troubleshooting
- Performance Issues
- QLogic MPI Troubleshooting
- Mixed Releases of MPI RPMs
- Missing mpirun Executable
- Resolving Hostname with Multi-Homed Head Node
- Cross-Compilation Issues
- Compiler/Linker Mismatch
- Compiler Cannot Find Include, Module, or Library Files
- Problem with Shell Special Characters and Wrapper Scripts
- Run Time Errors with Different MPI Implementations
- Process Limitation with ssh
- Number of Processes Exceeds ulimit for Number of Open Files
- Using MPI.mod Files
- Extending MPI Modules
- Lock Enough Memory on Nodes When Using a Batch Queuing System
- Error Creating Shared Memory Object
- gdb Gets SIG32 Signal Under mpirun -debug with the PSM Receive Progress Thread Enabled
- General Error Messages
- Error Messages Generated by mpirun
- MPI Stats
- E Write Combining
- F Useful Programs and Files
- G Recommended Reading
- Glossary
- Index
F–Useful Programs and Files
Summary of Configuration Files
F-18 IB6054601-00 H
S
Configuration File Name Description
/etc/modprobe.conf Specifies options for modules when added
or removed by the modprobe command.
Also used for creating aliases. The PAT
write-combing option is set here.
For Red Hat systems.
/etc/modprobe.conf.local Specifies options for modules when added
or removed by the modprobe command.
Also used for creating aliases. The PAT
write-combing option is set here.
For SLES systems.
/etc/infiniband/openib.conf The primary configuration file for Infini-
Path, OFED modules, and other modules
and associated daemons. Automatically
loads additional modules or changes IPoIB
transport type.
/etc/sysconfig/infinipath Contains settings, including the one that
sets the ipath_mtrr script to run on
reboot.
/etc/sysconfig/network/ifcfg-
<NAME>
Network configuration file for network inter-
faces
When used for VNIC configuration,
<NAME> is in the form
eiocX, where X is
the device number.
There will be one
interface configuration file for each inter-
face defined in /etc/infini-
band/qlgc_vnic.cfg.
For SLES systems.
/etc/sysconfig/net-
work-scripts/ifcfg-<NAME>
Network configuration file for network inter-
faces
When used for VNIC configuration,
<NAME> is in the form
eiocX, where X is
the device number.
There will be one
interface configuration file for each inter-
face defined in /etc/infini-
band/qlgc_vnic.cfg.
For Red Hat systems.
Table F-7. Configuration Files (Continued)