User guide

IB0054606-02 A 3-1
3 InfiniBand
®
Cluster Setup
and Administration
This section describes what the cluster administrator needs to know about the
QLogic OFED+ software and system administration.
Introduction
The IB driver ib_qib, QLogic Performance Scaled Messaging (PSM), accelerated
Message-Passing Interface (MPI) stack, the protocol and MPI support libraries,
and other modules are components of the QLogic OFED+ software. This software
provides the foundation that supports the MPI implementation.
Figure 3-1 illustrates these relationships. Note that HP-MPI, Platform MPI, Intel
MPI, MVAPICH, MVAPICH2, and Open MPI can run either over PSM or
OpenFabrics
®
User Verbs.
Figure 3-1. QLogic OFED+ Software Structure
InfiniBand
®
/OpenFabrics
User Verbs
MPI Applications
QLogic OFED+ Driver ib_qib
Kernel Space
uMAD API
User Space
QLogic OFED+
Communication
Library (PSM)
QLogic OFED+
Hardware
TCP/IP
IPoIB
QLogic IB adapter
Platform MPI
MVAPICH
Open MPI
MVAPICH
Open MPI
Intel MPI
QLogic FM
MVAPICH2
Common
Intel MPI
uDAPL
Platform MPI
SRP
MVAPICH2