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1 – Introduction
Interoperability
1-2 IB6054601-00 D
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■ Appendix E Glossary of technical terms
■ Index
In addition, the InfiniPath Install Guide contains information on InfiniPath hardware
and software installation.
1.3
Overview
The material in this documentation pertains to an InfiniPath cluster. This is defined
as a collection of nodes, each attached to an InfiniBand™-based fabric through the
InfiniPath Interconnect. The nodes are Linux-based computers, each having up to
eight processors.
The InfiniPath interconnect is InfiniBand 4X, with a raw data rate of 10 Gb/s (data
rate of 8Gb/s).
InfiniPath utilizes standard, off-the-shelf InfiniBand 4X switches and cabling.
InfiniPath OpenFabrics software is interoperable with other vendors’ InfiniBand
HCAs running compatible OpenFabrics releases. There are two options for Subnet
Management in your cluster:
■ Use the Subnet Manager on one or more managed switches supplied with your
Infiniband switches.
■ Use the OpenSM component of OpenFabrics.
1.4
Switches
The InfiniPath interconnect is designed to work with all InfiniBand-compliant
switches. Use of OpenSM as a subnet manager is now supported. OpenSM is part
of the OpenFabrics component of this release.
1.5
Interoperability
InfiniPath participates in the standard InfiniBand Subnet Management protocols for
configuration and monitoring. InfiniPath OpenFabrics (including IPoIB) is
interoperable with other vendors’ InfiniBand HCAs running compatible OpenFabrics
releases. The InfiniPath MPI and Ethernet emulation stacks (
ipath_ether) are not
interoperable with other InfiniBand Host Channel Adapters (HCA) and Target
Channel Adapters (TCA). Instead, InfiniPath uses an InfiniBand-compliant
vendor-specific protocol that is highly optimized for MPI and TCP between
InfiniPath-equipped hosts.