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- Outdated ipath_ether Configuration Setup Generates Error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 vii
S
Renamed Compiling and Linking section.
Added language information to MPI wrapper script
names (Tab le 5-1).
Removed the NOTE about GNU environment.
Replaced PathScale compiler with GNU compiler.
“Use Wrapper Scripts for Compiling and Linking”
on page 5-6
Updated supported compilers (first paragraph).
Added compiler options (Table 5-3, Table 5 -4 ,
Tabl e 5 -5 ).
Removed examples for using gcc for C++ and
Fortran 77.
Removed example for using PGI for Fortran 90/95.
Removed example for Intel C compiler and Intel
compiler for Fortran 90/95.
“To Use Another Compiler” on page 5-8
Renamed Multiprocessor Nodes section. This sec-
tion now consolidates information about process
allocation, and hardware and software contexts.
The entire section has been updated.
“Process Allocation” on page 5-10 and associated
subsections.
Renamed The mpihost File section.
Clarified mpihosts file format (multiple changes
throughout section).
“mpihosts File Details” on page 5-14
Renamed Using mpirun to Run MPI Programs
section.
Changed first two paragraphs.
Removed NOTE about the mpi-frontend RPM.
Added information about what to do if the number
of processes exceeds the number of nodes (-ppn
option).
“Using mpirun” on page 5-15
Added default values, if used, for some environ-
ment variables (default values were not previously
documented).
MPICH_ROOT: added that this variable is the same
as the --prefix argument. Deleted NOTE about
MPICH_ROOT replacing INFINIPATH_ROOT.
MPI_SHELL: removed sentence stating that the
default is ssh.
OP_NUM_THREADS: removed this variable.
“Environment Variables” on page 5-18