Tutorial

Using MPI Tuner for Intel® MPI Library on Linux* OS

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ID 768652
Date 2/19/2016
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Document Table of Contents
Document Table of Contents x
Tutorial: Using MPI Tuner for Intel® MPI Library
Tutorial: Using MPI Tuner for Intel® MPI Library x
Legal Information Overview Getting Started Task 1: Minimize Tuning Time in Cluster- Specific Mode Task 2: Include Missing Values in the Default Parameters Grid during Cluster Tuning Task 3: Application-Specific Tuning Troubleshooting
Getting Started x
Accessing MPI Tuner MPI Tuner Modes
MPI Tuner Modes x
Cluster-Specific Tuning Commands Application-Specific Tuning Commands
Task 1: Minimize Tuning Time in Cluster- Specific Mode x
Host Range Numbers of Ranks per Host Fabric Usage (I_MPI_FABRICS) Message Sizes Most Common MPI Functions
Task 3: Application-Specific Tuning x
Commands for Fast Application-Specific Tuning Commands for Topology Awareness Rank Placement Optimization
Tutorial: Using MPI Tuner for Intel® MPI Library

Getting Started

Before using the MPI tuner for Intel® MPI Library, ensure that the library, scripts, and utility applications are installed. See the Intel® MPI Library Getting Started Guide for instructions.

The general workflow of using the MPI tuner is as follows:

  1. Create optimized configuration files through the mpitune utility.
  2. Use the configuration files through the –tune option of the mpirun command during regular execution.

Usage instructions for specific tasks are given in detail further in this tutorial and rely on these general steps.

NOTE:
Before you use the MPI tuner, you can check the tasks to be executed. Use the --scheduler-only (-so) option to see the scope of mpitune work before the real run: $ mpitune ... –so.
Parent topic: Tutorial: Using MPI Tuner for Intel® MPI Library
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