This training will present basic elements to enable developpers to understand when and how to optimize the performance of their codes.

Optimization :

Compiler options 
Vectorization - Data access (cache usage maximization)
Theory to upper-bound the expected performance benefit (speedup, efficiency, peak, memory bandwidth, ...)
Examples of Stencil codes and N-body simulations

Half of the course will be made of hands-on sessions. The hands-on will use the https://github.com/aff3ct/MIPP library

Trainers

Bertrand Cirou
Mathieu Cloirec
Cédric Jourdain
Umesh Seth
Dorian Midou
Naima Alaoui

Learning outcomes 
Ability to understand the main issues for code optimization, knowledge of the main tools and techniques for basic debugging.

Prerequisites 
ID Card, ZRR access, Basic knowledge of Unix, programming experience in C++, OpenMP
https://events.prace-ri.eu/event/917/