Improving Intra-process Performance

 Use the Intel® VTune™ Amplifier to analyze an MPI application behavior to improve the application performance on the intra-process level.

This part of the tutorial uses the poisson sample code to demonstrate how to detect and remove hotspots in your application.

Step 1: Prepare for and run Basic Hotspots analysis

Run the Basic Hotspots analysis to identify the functions that took a relatively long time to execute.

Step 2: Identify hotspots and interpret results

Explore the application-level performance, analyze the most time-consuming functions, and identify the hotspot code region.

For more complete information about compiler optimizations, see our Optimization Notice.