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- Outdated ipath_ether Configuration Setup Generates Error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
5–Using QLogic MPI
QLogic MPI Details
5-6 IB6054601-00 H
S
Use Wrapper Scripts for Compiling and Linking
The scripts in Table 5-1 invoke the compiler and linker for programs in each of the
respective languages, and take care of referring to the correct include files and
libraries in each case.
On x86_64, these scripts (by default) call the GNU compiler and linker. To use
other compilers, see “To Use Another Compiler” on page 5-8.
These scripts all provide the command line options listed in Tab le 5-2.
In addition, each of these scripts allow a command line option for specifying a
different compiler/linker as an alternative to the GNU Compiler Collection (GCC).
For more information, see “To Use Another Compiler” on page 5-8.
Most other command line options are passed on to the invoked compiler and
linker. The GNU compiler and alternative compilers all accept numerous
command line options. See the GCC compiler documentation and the man pages
for gcc and gfortran for complete information on available options. See the
corresponding documentation for any other compiler/linker you may call for its
options. Man pages for mpif90(1), mpif77(1), mpicc(1), and mpiCC(1) are
available.
Table 5-1. QLogic MPI Wrapper Scripts
Wrapper Script Name Language
mpicc C
mpicxx C++
mpif77 Fortran 77
mpif90 Fortran 90
mpif95
Fortran 95
Table 5-2. Command Line Options for Scripts
Command Meaning
-help Provides help
-show Lists each of the compiling and linking commands that would be
called without actually calling them
-echo Gets verbose output of all the commands in the script
-compile_info Shows how to compile a program
-link_info Shows how to link a program