Q

InfiniPath User Guide

Version 2.0

InfiniPath User Guide

3.11

Debugging MPI Programs

3-20

3.11.1

MPI Errors

3-20

3.11.2

Using Debuggers

3-20

3.12

InfiniPath MPI Limitations

3-21

Appendix A

Benchmark Programs

 

A.1

Benchmark 1: Measuring MPI Latency Between Two Nodes

A-1

A.2

Benchmark 2: Measuring MPI Bandwidth Between Two Nodes

A-2

A.3

Benchmark 3: Messaging Rate Microbenchmarks

A-3

A.4

Benchmark 4: Measuring MPI Latency in Host Rings

A-5

Appendix B Integration with a Batch Queuing System

 

B.1

A Batch Queuing Script

B-1

B.1.1

Allocating Resources

B-1

B.1.2

Generating the mpihosts File

B-2

B.1.3

Simple Process Management

B-3

B.1.4

Clean Termination of MPI Processes

B-3

B.2

Lock Enough Memory on Nodes When Using SLURM

B-4

Appendix C

Troubleshooting

 

C.1

Troubleshooting InfiniPath Adapter Installation

C-1

C.1.1

Mechanical and Electrical Considerations

C-1

C.1.2

Some HTX Motherboards May Need 2 or More CPUs in Use

C-2

C.2

BIOS Settings

C-2

C.2.1

MTRR Mapping and Write Combining

C-3

C.2.2

Incorrect MTRR Mapping

C-3

C.2.3

Incorrect MTRR Mapping Causes Unexpected Low Bandwidth

C-4

C.2.4

Change Setting for Mapping Memory

C-4

C.2.5

Issue with SuperMicro H8DCE-HTe and QHT7040

C-4

C.3

Software Installation Issues

C-5

C.3.1

OpenFabrics Dependencies

C-5

C.3.2

Install Warning with RHEL4U2

C-5

C.3.3

mpirun Installation Requires 32-bit Support

C-5

C.3.4

Installing Newer Drivers from Other Distributions

C-6

C.3.5

Installing for Your Distribution

C-7

C.4

Kernel and Initialization Issues

C-7

C.4.1

Kernel Needs CONFIG_PCI_MSI=y

C-8

C.4.2

pci_msi_quirk

C-8

C.4.3

Driver Load Fails Due to Unsupported Kernel

C-9

C.4.4

InfiniPath Interrupts Not Working

C-9

IB6054601-00 D

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Q-Logic IB6054601-00 D manual Appendix a Benchmark Programs
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IB6054601-00 D specifications

The Q-Logic IB6054601-00 D is a high-performance InfiniBand adapter card designed for data centers and enterprise applications requiring robust connectivity and low-latency communication. This adapter is part of QLogic's extensive portfolio of networking solutions, catering to the needs of high-performance computing (HPC), cloud computing, and virtualization environments.

One of the standout features of the IB6054601-00 D is its capability to support data transfer rates of up to 56 Gbps. This makes it ideal for applications demanding large bandwidth and quick data processing. The adapter is optimized for RDMA (Remote Direct Memory Access) technology, which allows data to be transferred directly between the memory of different computers without involving the CPU. This reduces latency and CPU overhead, leading to enhanced overall system performance.

The architecture of the IB6054601-00 D includes support for a dual-port design, which offers increased bandwidth, redundancy, and fault tolerance. This dual-port configuration is especially advantageous for environments that require high availability and reliability, such as financial services and mission-critical applications.

The adapter utilizes advanced error detection and correction mechanisms, ensuring that data integrity is maintained during transmission. With features like adaptive routing and congestion management, the IB6054601-00 D is capable of optimizing the handling of data flows, thereby enhancing performance even under heavy loads.

In terms of compatibility, the Q-Logic IB6054601-00 D supports a wide range of operating systems and virtualization technologies, making it easy to integrate into diverse IT environments. It also includes drivers and software packages that facilitate seamless deployment and management.

In addition to high-speed connectivity, the adapter is designed with power efficiency in mind. It adheres to Energy Star regulations, helping organizations lower their operational costs while minimizing their environmental footprint.

Overall, the Q-Logic IB6054601-00 D stands out for its high throughput, low latency, and reliability. Its combination of advanced features and technologies positions it as an excellent choice for organizations looking to enhance their data center performance and maximize the efficiency of their network infrastructure. With the growing demands for faster and more efficient data transfer, solutions like the IB6054601-00 D are essential in meeting the evolving needs of modern enterprises.
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