Tutorial

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

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ID 768652
Date 2/19/2016
Public
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

Application-Specific Tuning Commands

To use the MPI tuner under application-specific mode:

  1. Use the --application (-a) option to tune the specified workload for the provided environment and command line settings. The tuner records the new optimal settings in the myprog.conf file:

    $ mpitune --application \"mpirun -n 32 ./myprog\" -of ./myprog.conf

  2. Use the –tune option to pick up the optimal recorded values for your application at runtime:

    $ mpirun -tune ./myprog.conf -n 32 ./myprog
Parent topic: MPI Tuner Modes
Level Two Title