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- Outdated ipath_ether Configuration Setup Generates Error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
2–Feature Overview
Features
2-2 IB6054601-00 H
S
The QLogic InfiniBand Fabric Suite (IFS) is available separately for
purchase. It includes FastFabric, the QLogic Fabric Manager, Fabric Viewer,
and the InfiniServ Host Software. The QLogic OFED 1.4 software is
supported by IFS.
Support for new compiler versions (PathScale 3.x, PGI 7.x, PGI 8.x,
Intel 10.x, Intel 11.x)
Support for new Linux distributions, including RHEL 4 U7
Performance enhancements and bug fixes
Other Changes
The following changes have been made to the software since the last release:
ipath_ether Ethernet emulation has been removed; IPoIB-CM can be
used instead.
The /etc/init.d/infinipath command to start the InfiniPath service
has been replaced by the /etc/init.d/openibd command.
The infinipath-kernel RPM no longer exists; it has been integrated
into the kernel-ib RPM.
Continued Support
The following features are still supported in this release:
Multiple high-performance native PSM MPI implementations. (PSM is
QLogic’s accelerated library for high performance MPIs). In addition to
QLogic MPI, the currently supported MPI implementations are HP-MPI,
Open MPI, MVAPICH, and Scali (Platform). Open MPI provides MPI-2
functionality, including one-sided operations and dynamic processes. These
all offer the same high performance as QLogic MPI.
QLogic MPI can be run exclusively on a single node without the installation
of the host channel adapter hardware.
Dual PCIe QLogic adapters per node.
4K Maximum Transfer Unit (MTU) is supported and is on by default. To take
advantage of 4KB MTU, use a switch that supports 4KB MTU. QLogic also
supports 2KB switches, as well as 4KB MTU switches configured for 2KB
MTU. QLogic switches with firmware version 4.2.x or later are
recommended.