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- Outdated ipath_ether Configuration Setup Generates Error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
IB6054601-00 H A-1
A mpirun Options Summary
This section summarizes the most commonly used options to mpirun. See the
mpirun (1) man page for a complete listing.
Job Start Options
-mpd
This option is used after running
mpdboot to start a daemon, rather than using the
default ssh protocol to start jobs. See the
mpdboot(1) man page for more
information. None of the other mpirun options (with the exception of -h) are valid
when using this option.
-ssh
This option uses the ssh program to start jobs, either directly or through
distributed startup. This is the default.
Essential Options
-H, -hosts hostlist
When this option is used, the list of possible hosts on which to run is taken from
the specified hostlist, which has precedence over the -machinefile option.
The hostlist can be comma-delimited or quoted as a space-delimited list. The
hostlist specification allows compressed representation of the form:
host-[01-02,04,06-08], which is equivalent to
host-01,host-02,host-04,host-06,host-07,host-08
If the -np count is unspecified, it is adjusted to the number of hosts in the
hostlist. If the -ppn count is specified, each host will receive as many
processes.
-machinefile filename, -m filename
This option specifies the machines (mpihosts) file, which contains the list of hosts
to be used for this job. The default is $MPIHOSTS, then ./mpihosts, and finally
~/.mpihosts.
-nonmpi
This option runs a non-MPI program, and is required if the node program makes
no MPI calls. This option allows non-QLogic MPI applications to use mpirun’s
parallel spawning mechanism.