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MpiP: Difference between revisions

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The behaviour of mpiP is controlled by options provided via the `MPIP` environment variable.
The behaviour of mpiP is controlled by options provided via the `MPIP` environment variable.
See the mpiP documentation for a detailed description of all options. The wrapper on Hawk sets sensible defaults already. But you may override those by exporting your own config as
See the mpiP documentation for a detailed description of all options. The wrapper on Hawk already sets sensible defaults. But you may override those by exporting your own config as
{{Command|command= export MPIP="CONFIG HERE"; mpirun $MPIP_HOME/../share/trace-mpiP.sh <your_app and options>}}
{{Command|command= export MPIP="CONFIG HERE"; mpirun $MPIP_HOME/../share/trace-mpiP.sh <your_app and options>}}
or copy the wrapper script and adapt it to your needs if necessary.
or copy the wrapper script and adapt it to your needs if necessary.

Revision as of 17:07, 16 March 2023

The mpiP library is a light-weight profiling library for MPI applications.

To record an MPI profile, simply run the program with the mpiP library preloaded.

Developer: LLNL
Platforms: Hazel Hen
Category: Performance Analyzer
License: BSD
Website: mpiP homepage


Note, this page is outdated

Introduction

Usage

First load the related software module

module load mpip

which will set the '$MPIP_HOME' variable to the latest mpiP installation path.

The tools mpiP needs to be _attached_ to you application through the "LD_PRELOAD" mechanism. On Hawk in most cases it is sufficient to use the provided wrapper script as

mpirun $MPIP_HOME/../share/trace-mpiP.sh <your_app and options>

This will create one or two files with file extension `.mpiP` in the folder. Those files include a consice performance report (`*.1.mpiP`) and an extensive performance report (`*.2.mpiP`), respectively.

The behaviour of mpiP is controlled by options provided via the `MPIP` environment variable. See the mpiP documentation for a detailed description of all options. The wrapper on Hawk already sets sensible defaults. But you may override those by exporting your own config as

export MPIP="CONFIG HERE"; mpirun $MPIP_HOME/../share/trace-mpiP.sh <your_app and options>

or copy the wrapper script and adapt it to your needs if necessary.

See also

External Links