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- Outdated ipath_ether Configuration Setup Generates Error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
3–Step-by-Step Cluster Setup and MPI Usage Checklists
Using MPI
3-2 IB6054601-00 H
S
Using MPI
1. Verify that the QLogic hardware and software has been installed on all the
nodes you will be using, and that ssh is set up on your cluster (see all the
steps in the Cluster Setup checklist).
2. Copy the examples to your working directory. See “Copy Examples” on
page 5-3.
3. Make an mpihosts file that lists the nodes on which your programs will run.
See “Create the mpihosts File” on page 5-3.
4. Compile the example C program using the default wrapper script mpicc.
Use mpirun to run it. See “Compile and Run an Example C Program” on
page 5-3.
5. Try the examples with other programming languages, C++, Fortran 77, and
Fortran 90 in “Examples Using Other Programming Languages” on
page 5-4.
6. To test using other MPIs that run over PSM, such as MVAPICH, Open MPI,
HP
®
-MPI, Platform MPI, and Intel MPI, see “Using Other MPIs” on page 6-1.
7. To switch between multiple versions of Open MPI, MVAPICH, and QLogic
MPI, use the mpi-selector. See “Managing Open MPI, MVAPICH, and
QLogic MPI with the mpi-selector Utility” on page 6-6.
8. Refer to “QLogic MPI Details” on page 5-5 for more information about
QLogic MPI, and to “Performance Tuning” on page 5-21 to read more about
runtime performance tuning.
9. Refer to “Using Other MPIs” on page 6-1 to learn about using other MPI
implementations.