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- Outdated ipath_ether Configuration Setup Generates Error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 xix
QLogic Host Channel Adapter and QLogic OFED Software Users Guide
QLogic OFED Version 1.4
A
B Benchmark Programs
Benchmark 1: Measuring MPI Latency Between Two Nodes . . . . . . . . . . . B-1
Benchmark 2: Measuring MPI Bandwidth Between Two Nodes . . . . . . . . . B-3
Benchmark 3: Messaging Rate Microbenchmarks. . . . . . . . . . . . . . . . . . . . B-4
Benchmark 4: Measuring MPI Latency in Host Rings . . . . . . . . . . . . . . . . . B-5
C Integration with a Batch Queuing System
Using mpiexec with PBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Using SLURM for Batch Queuing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Allocating Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Generating the mpihosts File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Simple Process Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Clean Termination of MPI Processes . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Lock Enough Memory on Nodes when Using SLURM. . . . . . . . . . . . . . . . . C-5
D Troubleshooting
Using LEDs to Check the State of the Adapter . . . . . . . . . . . . . . . . . . . . . . D-1
BIOS Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2
Issue with SuperMicro
®
H8DCE-HTe and QHT7040 . . . . . . . . . . . . . . D-2
Kernel and Initialization Issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-3
Driver Load Fails Due to Unsupported Kernel. . . . . . . . . . . . . . . . . . . D-3
Rebuild or Reinstall Drivers if Different Kernel Installed . . . . . . . . . . . D-3
InfiniPath Interrupts Not Working. . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-3
OpenFabrics Load Errors if ib_ipath Driver Load Fails. . . . . . . . . . D-5
InfiniPath ib_ipath Initialization Failure . . . . . . . . . . . . . . . . . . . . . D-5
MPI Job Failures Due to Initialization Problems . . . . . . . . . . . . . . . . . D-6
OpenFabrics and InfiniPath Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-6
Stop OpenSM Before Stopping/Restarting InfiniPath . . . . . . . . . . . . . D-6
Manual Shutdown or Restart May Hang if NFS in Use . . . . . . . . . . . . D-7
Load and Configure IPoIB Before Loading SDP . . . . . . . . . . . . . . . . . D-7
Set $IBPATH for OpenFabrics Scripts . . . . . . . . . . . . . . . . . . . . . . . . D-7
ifconfig Does Not Display Hardware Address Properly on RHEL4 D-7
SDP Module Not Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-8
ibsrpdm Command Hangs when Two Host Channel Adapters
are Installed but Only Unit 1 is Connected to the Switch . . . . . . . . . D-8
Outdated ipath_ether Configuration Setup Generates Error . . . . . . . . D-8
System Administration Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . D-9
Broken Intermediate Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-9