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- Outdated ipath_ether Configuration Setup Generates Error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

4–InfiniPath Cluster Setup and Administration
OpenFabrics Drivers and Services Configuration and Startup
4-14 IB6054601-00 H
S
Look at the qlgc_vnic.cfg.sample file to see how VNIC configuration
files are written. This file can be found with the OFED documentation, or in
the qlgc_vnictools subdirectory of the QLogicIB_Basic download. You
can use this configuration file as the basis for creating a configuration file by
replacing the destination global identifier (DGID), IOCGUID, and
IOCSTRING values with those of the EVIC/VEx IOCs present on your fabric.
QLogic recommends using the DGID of the EVIC/VEx IOC, as it ensures the
quickest startup of the VNIC service. When DGID is specified, the IOCGUID
must also be specified. For more details, see the qlgc_vnic.cfg sample
file.
3. Edit the VirtualNIC configuration file,
/etc/infiniband/qlgc_vnic.cfg. For each IOC connection, add a
CREATE block to the file using the following format:
{CREATE; NAME="eioc2";
PRIMARY={IOCGUID=0x66A0130000105; INSTANCE=0; PORT=1; }
SECONDARY={IOCGUID=0x66A013000010C; INSTANCE=0; PORT=2;}
}
a. Format 1: Define an IOC using the IOCGUID. Use the following format
to allow the host to connect to a specific VIO hardware card,
regardless of which chassis and/or slot the VIO hardware card resides:
{CREATE;
NAME="eioc1";
IOCGUID=0x66A0137FFFFE7;}
The following is an example of VIO hardware failover:
{CREATE; NAME="eioc1";
PRIMARY={IOCGUID=0x66a01de000003; INSTANCE=1; PORT=1; }|
SECONDARY={IOCGUID=0x66a02de000003; INSTANCE=1; PORT=1;}
}
NOTE:
The qlgc_vnic.cfg file is case and format sensitive.
NOTE:
Do not create EIOC names with similar character strings (for
example, eioc3 and eioc30). There is a limitation with certain
Linux operating systems that cannot recognize the subtle
differences. The result is that the user will be unable to ping
across the network.