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1 – Introduction
Interoperability
Appendix
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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.
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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 (
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.
NOTE:
1-2
A, "RPM Descriptions"
OpenFabrics was known as OpenIB until March 2006. All relevant
references to OpenIB in this documentation have been updated to reflect
this change. See the OpenFabrics website at http://www.openfabrics.org
for more information on the OpenFabrics Alliance.
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