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- Outdated ipath_ether Configuration Setup Generates Error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

IB6054601-00 H 1-1
1 Introduction
This section describes the objectives, intended audience, and organization of the
QLogic Host Channel Adapter and QLogic OFED Software User Guide.
The QLogic Host Channel Adapter and QLogic OFED Software User Guide
shows end users how to use their InifiniPath cluster. End users include both the
cluster administrator and the Message-Passing Interface (MPI) application
programmers, who have different but overlapping interests in the details of the
technology.
For specific instructions about installing the QLogic QLE7140, QLE7240, and
QLE7280 PCI Express
®
(PCIe
®
) adapters, the QHT7140/QHT7040
HyperTransport eXpansion (HTX™) adapters, and the initial installation of the
InfiniPath
®
Software, see the QLogic HCA and QLogic OFED Software Install
Guide.
Who Should Read this Guide
This guide is intended for end users responsible for administration of an InfiniPath
cluster network as well as for end users who want to use that cluster.
This guide assumes that all users are familiar with cluster computing, that the
cluster administrator is familiar with Linux
®
administration, and that the application
programmer is familiar with MPI.
How this Guide is Organized
The QLogic Host Channel Adapter and QLogic OFED Software User Guide is
organized into these sections:
Section 1, Introduction
Section 2, Feature Overview, lists the features for this release, the
supported QLogic adapter models, the supported distributions and kernels,
and a list of the software components.
Section 3, Step-by-Step Cluster Setup and MPI Usage Checklists, describes
how to setup your cluster to run high-performance MPI jobs.