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- Outdated ipath_ether Configuration Setup Generates Error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
1–Introduction
Overview
1-2 IB6054601-00 H
S
Section 4, InfiniPath Cluster Setup and Administration, describes the lower
levels of the supplied InfiniPath software. This section is of interest to an
InfiniPath cluster administrator.
Section 5, Using QLogic MPI, helps the MPI programmer make the best use
of the QLogic MPI implementation. Examples are provided for compiling and
running MPI programs.
Section 6, Using Other MPIs, gives examples for compiling and running MPI
programs with other MPI implementations.
Appendix A, mpirun Options Summary, describes the most commonly used
options to mpirun.
Appendix B, Benchmark Programs, describes how to run these performance
measurement programs.
Appendix C, Integration with a Batch Queuing System, describes two
methods the administrator can use to allow users to submit MPI jobs through
batch queuing systems.
Appendix D, Troubleshooting, provides information for troubleshooting
installation, cluster administration, and MPI.
Appendix E, Write Combining, provides instructions for checking write
combining and for using the Page Attribute Table (PAT) and Memory Type
Range Registers (MTRR).
Appendix F, Useful Programs and Files, contains many useful programs and
files for debugging, as well as commands for common tasks.
Appendix G, Recommended Reading
Glossary defines the technical terms used in this document.
Index lists major subjects and concepts with page numbers for easy
reference
.
In addition, the QLogic HCA and QLogic OFED Software Install Guide contains
information on QLogic hardware and InfiniPath software installation.
Overview
The material in this documentation pertains to a QLogic OFED cluster. A cluster is
defined as a collection of nodes, each attached to an InfiniBand™-based fabric
through the QLogic interconnect. The nodes are Linux-based computers, each
having up to 16 processors.