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- Outdated ipath_ether Configuration Setup Generates Error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
QLogic Host Channel Adapter and QLogic OFED Software Users Guide
QLogic OFED Version 1.4
IB6054601-00 H Page v
S
Added ibv_devinfo command to see the current
MTU size.
Added more details about setting the switch MTU
default to 4K.
“Other Configuration: Changing the MTU Size” on
page 4-18
Renamed Configuring the ib_ipath driver to
Managing the Infinipath driver. Updated section:
this driver now runs as a system service.
“Managing the InfiniPath Driver” on page 4-19
Split Stopping and Starting the InfiniPath Software
into two sections.
“Configure the Infinipath Driver State” on
page 4-19
“Start, Stop, or Restart InfiniPath” on page 4-20
Changed commands for checking the configura-
tion state and enabling/disabling the driver.
“Configure the Infinipath Driver State” on
page 4-19
Removed paragraph about OpenSM.
Changed commands to restart the driver.
Noted that you do not have to be a root user to run
the command to determine which InfiniPath and
OpenFabric modules are running.
“Start, Stop, or Restart InfiniPath” on page 4-20
New section “Unload the Driver/Modules Manually” on
page 4-21
Moved Performance Settings and Management
Tips section. Added a reference to “Performance
Tuning” on page 5-21.
Re-ordered subsections.
“Performance Settings and Management Tips” on
page 4-22
Renamed Adapter Settings section.
In first bullet, changed section reference for more
information on taskset.
In the second bullet (IB MTU size), removed the
statements about 4K MTU, which no longer apply.
In the fourth bullet (MaxPayload size), changed
recommendation to using a size of 256.
Removed the bullet about adjusting the MTRR set-
ting.
Added fifth bullet (write combining).
Added sixth bullet (PCIe bus width).
“Adapter and Other Settings” on page 4-22
Changed name of the service comprising the Infini-
path driver and SMA.
“Remove Unneeded Services” on page 4-23
Removed references to Fedora 6; not supported in
this release.
“Disable Powersaving Features” on page 4-24