Tutorial

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

Download PDF
ID 768652
Date 2/19/2016
Public

Visible to Intel only — GUID: GUID-7FA8E546-A14A-4FEA-ACD2-29DA4A4AB1B3

View Details

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

Task 3: Application-Specific Tuning

Now that you have completed the cluster-specific tuning, you can focus on optimizing Intel® MPI Library for your application. You can use the above cluster-specific methods and apply them to your application-specific tuning, with the following modifications:

  1. The layout of your application (such as hosts and process count per host) is set on your mpirun command line, outside of mpitune.
  2. Use your application instead of the micro benchmarks mentioned above.
  3. Use the app.xml configuration file instead of imb.xml.
Parent topic: Tutorial: Using MPI Tuner for Intel® MPI Library
Level Two Title