User Manual

Rev 2.1-1.0.6

Mellanox Technologies

1.3.5 MPI

Message Passing Interface (MPI) is a library specification that enables the development of paral-

lel software libraries to utilize parallel computers, clusters, and heterogeneous networks. Mella-

nox OFED includes the following MPI implementations over InfiniBand:

• Open MPI – an open source MPI-2 implementation by the Open MPI Project

• OSU MVAPICH – an MPI-1 implementation by Ohio State University

Mellanox OFED also includes MPI benchmark tests such as OSU BW/LAT, Intel MPI Bench-

mark, and Presta.

1.3.6 InfiniBand Subnet Manager

All InfiniBand-compliant ULPs require a proper operation of a Subnet Manager (SM) running on

the InfiniBand fabric, at all times. An SM can run on any node or on an IB switch. OpenSM is an

InfiniBand-compliant Subnet Manager, and it is installed as part of Mellanox OFED.

See Chap-

ter 8, “OpenSM – Subnet Manager”.

1.3.7 Diagnostic Utilities

Mellanox OFED includes the following two diagnostic packages for use by network and data-

center managers:

• ibutils – Mellanox Technologies diagnostic utilities

• infiniband-diags – OpenFabrics Alliance InfiniBand diagnostic tools

1.3.8 Mellanox Firmware Tools

The Mellanox Firmware Tools (MFT) package is a set of firmware management tools for a single

InfiniBand node. MFT can be used for:

• Generating a standard or customized Mellanox firmware image

• Querying for firmware information

• Burning a firmware image to a single InfiniBand node

MFT includes the following tools:

• mlxburn - provides the following functions:

• Generation of a standard or customized Mellanox firmware image for burning—in .bin

(binary) or .img format

• Burning an image to the Flash/EEPROM attached to a Mellanox HCA or switch device

• Querying the firmware version loaded on an HCA board

• Displaying the VPD (Vital Product Data) of an HCA board

• flint

This tool burns a firmware binary image or an expansion ROM image to the Flash device of a Mella-

nox network adapter/bridge/switch device. It includes query functions to the burnt firmware image

and to the binary image file.

• spark

1. OpenSM is disabled by default. See Chapter 8, “OpenSM – Subnet Manager” for details on enabling it.