Q-Logic Computer Drive IB0056101-00 G Benutzerhandbuch

1 – Introduction

Interoperability

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InfiniPath OpenFabrics software is interoperable with other vendors’ InfiniBand 
Host Channel Adapters (HCAs) running compatible OpenFabrics releases. There 
are several options for subnet management in your cluster:

„

Use the embedded Subnet Manager (SM) in one or more managed switches 
supplied by your InfiniBand switch vendor. 

„

Use the Open source Subnet Manager (OpenSM) component of 
OpenFabrics.

„

Use a host-based Subnet Manager.

QLogic InfiniPath participates in the standard InfiniBand subnet management 
protocols for configuration and monitoring. Note that: 

„

InfiniPath OpenFabrics (including Internet Protocol over InfiniBand (IPoIB)) 
is interoperable with other vendors’ InfiniBand HCAs running compatible 
OpenFabrics releases. 

„

The QLogic MPI and Ethernet emulation stacks (

ipath_ether

) are not 

interoperable with other InfiniBand HCAs and Target Channel Adapters 
(TCAs). Instead, InfiniPath uses an InfiniBand-compliant, vendor-specific 
protocol that is highly optimized for MPI and Transmission Control Protocol 
(TCP) between InfiniPath-equipped hosts. 

This guide uses the typographical conventions listed in 

Table 1-1

.

See the OpenFabrics web site at 

 for more information 

on the OpenFabrics Alliance.

command

Fixed-space font is used for literal items such as commands, func-
tions, programs, files and pathnames, and program output.

variable

Italic fixed-space font is used for variable names in programs and 
command lines.

Italic font is used for emphasis and concepts, as well as for docu-
mentation names/titles.