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- Outdated ipath_ether Configuration Setup Generates Error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
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QLogic Host Channel Adapter and QLogic OFED Software Users Guide
QLogic OFED Version 1.4
In the first and last paragraphs, added a reference
to write combining and the PAT mechanism.
In the fifth paragraph, changed the bandwidth
range for the QLE7240.
“Unexpected Low Bandwidth or Poor Latency” on
page D-9
Removed the sentence “This issue will be fixed in
the next release”.
“Large Message Receive Side Bandwidth Varies
with Socket Affinity on Opteron Systems” on
page D-10
Added more information on processor affinity.
Reorganized examples for methods 1 and 2 for
clarity.
“Erratic Performance” on page D-11
Removed ipath_ether and changed to “the
OFED ULPs, such as IPoIB”.
“Performance Warning if ib_ipath Shares Interrupts
with eth0” on page D-12
In the second paragraph, added that compilers are
not currently supported on SLES 10 systems.
Removed references to Fedora 6; not supported in
this release.
In the third paragraph, updated the PathScale ver-
sion.
“Cross-Compilation Issues” on page D-14
New section “Problem with Shell Special Characters and Wrap-
per Scripts” on page D-17
New section “Number of Processes Exceeds ulimit for Number
of Open Files” on page D-20
In the second paragraph, changed the limit to
128 MB when locking memory during data tran-
fers.
“Lock Enough Memory on Nodes When Using a
Batch Queuing System” on page D-23
Added that the command to clean up all stale files
must be run as a root user.
“Error Creating Shared Memory Object” on
page D-24
New section “General Error Messages” on page D-26
New appendix. MTRR Mapping and Write Combin-
ing section and related subsections moved here.
New sections
“Write Combining” on page E-1
“Verify Write Combining is Working” on page E-1
(Some information from MTRR Mapping and Write
Combing moved here).
“PAT and Write Combining” on page E-2
Changed command names for restart, stop, and
start.
“Restarting InfiniPath” on page F-1
Removed ipath_ether reference to the descrip-
tion of modprobe.
Table F-1 on page F-2