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- Outdated ipath_ether Configuration Setup Generates Error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
4–InfiniPath Cluster Setup and Administration
BIOS Settings
IB6054601-00 H 4-5
A
BIOS Settings
To achieve the best performance with QLogic adapters, you need to configure
your BIOS with specific settings. The BIOS settings, which are stored in
non-volatile memory, contain certain parameters characterizing the system. These
parameters may include date and time, configuration settings, and information
about the installed hardware.
The Advanced Configuration and Power Interface (ACPI) setting must be
enabled.
If ACPI has been disabled, it may result in initialization problems, as described in
“InfiniPath Interrupts Not Working” on page D-3.
Some other BIOS settings can be adjusted for better adapter performance. See
“Performance Settings and Management Tips” on page 4-22.
For specific instructions about BIOS settings, follow the hardware documentation
that came with your system.
InfiniPath and OpenFabrics Driver Overview
The InfiniPath ib_ipath module provides low-level QLogic hardware support,
and is the base driver for both MPI/PSM programs and general OpenFabrics
protocols such as IPoIB and SDP. The driver also supplies the Subnet
Management Agent (SMA) component.
Optional configurable OpenFabrics components and their default settings at
startup are:
IPoIB network interface. This component is required for TCP/IP networking
for running Ethernet traffic over the InfiniPath link. It is not running until it is
configured.
VNIC. It is not running until it is configured.
OpenSM. This component is disabled at startup. You can install it on only
one node, or disable it on all nodes except where it will be used as an SM.
NOTE:
The x86 Page Attribute Table (PAT) mechanism that allocates Write
Combining (WC) mappings for the PIO buffers has been added and is now
the default. This was previously a BIOS setting. For more information, see
“Write Combining” on page E-1.