This tutorial uses the sample

heart_demo

and guides you through basic steps required to analyze hybrid OpenMP* and MPI code for inefficiencies using

Intel® VTune™

Profiler

's Application Performance Snapshot, Intel® Trace Analyzer and Collector, and

Intel VTune

Profiler

.

The tutorial was last updated for the Intel Parallel Studio 2018 product release. The analysis was run on 8 cluster nodes with Intel® Xeon Phi™ processors (formerly code named Knights Landing), each with 256 logical CPUs.

Read tutorial: 10 minutes

Run through tutorial with sample application: 60+ minutes

After you complete this tutorial, you should be able to:

Build an application using the MPI library and Intel® C++ compiler.
Run the Application Performance Snapshot tool to get a high-level overview of performance optimization opportunities.
Run Intel Trace Analyzer and Collector to identify MPI-bound code.
Analyze the communication pattern of the source code.
Run the HPC Performance Characterization Analysis with
Intel VTune
Profiler
to locate vectorization and parallelism issues in the sample code.
Compare results before and after optimization.